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Wyświetlanie 1-15 z 16
Tytuł:
Ecoenergetic cutting techniques
Autorzy:
Zaborowski, T.
Shvartsburg, L.
Ivanova, N.
Ryabov, S.
Powiązania:
https://bibliotekanauki.pl/articles/407454.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technology
machining
quality
energy
ecology
interaction
safety
Opis:
The article discusses the relationship between energy quality technologies cutting and their environmental friendliness. Based on the energy analysis shows that energy consumption in the individual technological process is connected with the cutting power and power loss, which form the environmental indicators of the cutting process and reduce its energy efficiency. In addition, it is shown that at implementation of technological processes on the equipment, electrical systems are AC systems the implementation of the cutting process occurs when excessive consumption of currents. The article presents the results of studies on the energy efficiency of cutting processes, definition of the complex influence of cutting processes on the environment and humans, the formation of ways of improving environmental and energy performance quality of these processes.
Źródło:
Management and Production Engineering Review; 2018, 9, 4; 70-75
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern methods of elimination of lost circulation in directional wells
Autorzy:
Ivanova, Tatiana N.
Żabińska, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1537993.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
liquidation of acquisitions
drilling tool run-in-hole/put-out-of-hole
restoration of circulation
drilling process
lowering or cementing of the production casing
Opis:
Losses of drilling mud and other fluids is the one of the major types of drilling troubles. Annual time losses for their elimination by oil and gas companies are huge. The factors, influencing the mud losses and regulating the direction of the further works, can be divided into two groups: geological and technological. Conducted studies on the use of an insulating composition based on chromium acetate made it possible to identify: the use of the insulation composition on the chrome acetate base allows considerable reduction of time required to eliminate disastrous circulation loss without installation of cement plugs; avoiding BHA replacement; avoiding drilling-in after bullheading and overlapping of lost-circulation layer; low cost, possibility of fast preparation, as it does not entail the delivery of additional chemicals, which also contributes to reduction of time required to eliminate disastrous circulation loss; the use with every type of drilling mud. Basing on the positive experience of the use of this composition in the neighboring regions and considering its economic side, the technique can be used in regions of the Udmurt Republic.
Źródło:
Management Systems in Production Engineering; 2021, 1 (29); 65-74
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technological Capabilities of Well Cementing
Autorzy:
Ivanova, Tatiana N.
Zasadzień, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2064552.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
cementing of casing string
isolation of water-bearing horizon
cement slurry injection
squeezing
Opis:
Cementing of casing string is a final operation before the next stage of well construction; it provides maximum operational life of the well. Cementing of casing string is carried out with the use of technology, based on squeezing of the whole volume of drilling mud by special grouting composition. The main purposes of cementing include isolation of water-bearing horizon, strengthening of borehole walls in unconsolidated and unstable rocks. Well cementing process is divided into five subsequent operations. Firstly, grouting mixture is prepared in concrete mixers (cementing units) with necessary water-to-cement ratio and additives. Secondly, prepared grouting solution is injected in a well. Thirdly, the solution is squeezed into the space between the casing pipes and wellbore walls. Then it is necessary to wait until the cement sheath is hardened. And at last, quality control is carried out. For convenient transportation, the equipment for well cementing is installed on the truck chassis (KAMAZ, URAL and etc.). All components are poured in concrete mixer, then the water is added and everything is being mixed until formation of uniform mass, which is later pumped in a well. Oil and Gas Industry Safety Regulations say that «calculated endurance of casing string cementing should not exceed 75% of time of cement thickening, established by laboratory tests». Therefore, it is necessary to carry out all operations of injection of fluids into the well as soon as possible without any incompliances of the cementing technology. With cementing material used and its water-to-cement ratio of 0.5, the average time of cement thickening is 120 minutes, according to laboratory tests. Therefore, a set of operations of injection of fluids should not exceed 90 minutes.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 465--478
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cobalt Additives Influence on Phase Composition and Defect Structure of Manganese Dioxide Prepared from Fluorine Containing Electrolytes
Autorzy:
Sokolsky, G.
Ivanov, S.
Ivanova, N.
Boldurev, Ye.
Kobulinskaya, O.
Demchenko, M.
Powiązania:
https://bibliotekanauki.pl/articles/1550089.pdf
Data publikacji:
2010-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.66.Fn
61.72.-y
85.40.Ry
Opis:
Manganese dioxide samples were prepared from fluorine containing electrolytes with additives of $Co^{2+}$ ions. Atomic absorption spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy with energy dispersive X-ray analysis were the methods of the samples characterisation. Manganese dioxide at the presence of cobalt forms nanosized ramsdellite structure crystallites of mostly needle-like morphology with significant content of hydroxide groups. The main phase state in manganese dioxide samples obtained at the presence of cobalt is $γ-MnO_{2}$ with ramsdellite structure and low content of intergrowth defects. The sample doped both with lithium and cobalt can be indexed to a hollandite-type structure (tetragonal; space group I4/m) of $α-MnO_{2}$.
Źródło:
Acta Physica Polonica A; 2010, 117, 1; 86-90
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of chemical composition of tough-to-machine steels on grinding technologies
Autorzy:
Ivanova, T. N.
Korshunov, A. I.
Božek, P.
Powiązania:
https://bibliotekanauki.pl/articles/409674.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
tough-to-machine materials
chemical composition
structure
grinding
grinding wheels
Opis:
The main purpose of processing of tough-to-machine materials is improving of cutting process of steels with different physicochemical properties and alloying by means of various chemical elements in combination with heat treatment. Producing of high quality surface layers depends on properties of material used to make details, that is why reasons of tough machining were identified: influence of chemical composition and resulting structure. The studies of grinding of tough-to-machine materials were undertaken by means of grinding wheels made from synthetic diamonds as they are most resistant and highly-productive. Based on the studies recommendations for using of characteristics of grinding wheels and tough-to machine steel grades are given. Research on heat processes during grinding allows us to determine patterns showing how cutting speed, detail motion speed, area and action period of contact influence temperature and speed of heat processes in surface layers as well as depth of heating. These patterns also give the chance to show interrelation between temperature and rate of heating and cooling. This gives an opportunity to predict state of structure of surface layer of details made of tough-to-machine steels under different machining conditions reasonably.
Źródło:
Management Systems in Production Engineering; 2018, 3 (26); 172-177
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dual completion petroleum production engineering for several oil formations
Autorzy:
Ivanova, T. N.
Korshunov, A. I.
Koretckiy, V. P.
Powiązania:
https://bibliotekanauki.pl/articles/409668.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
dual completion
wells
deposits
layouts
hydrocarbons
Opis:
Cost-efficient, enabling technologies for keeping and increasing the reservoir recovery rate of oil-formations with high water cut of produced fluids and exhausted resource are really essential. One of the easiest but short-term ways to increase oil production and incomes at development of oil deposits is cost of development and capital cost reduction. Therefore, optimal choice and proper feasibility study on the facilities for multilayer oil fields development, especially at the late stage of reservoir working, is a crucial issue for now-day oil industry. Currently, the main oil pools do not reach the design point of coefficient of oil recovery. The basic feature of the late stage of reservoir working is the progressing man-made impact on productive reservoir because of water injection increasing for maintaining reservoir pressure. Hence cost-efficient, enabling technologies for keeping and increasing the reservoir recovery rate of oil-formations with high water cut of produced fluids and exhausted resource are really essential. To address the above concerns the dual completion petroleum production engineering was proposed. The intensity of dual completion of formation with of different permeability is determined by rational choice of each of them. The neglect of this principle results a disproportionately rate of highly permeable formations development for the time. In effect the permeability of the formations or their flow rate is decreasing. The problem is aggravated by lack of awareness of mechanics of layers' mutual interference in producers and injectors. Dual completion experience in Russian has shown, that success and efficiency of the technology in many respects depend on engineering support. One of the sufficient criteria for the choice of operational objects should be maximal involvement of oil-saturated layers by oil displacement from seams over the economic life of well producing oil. If it is about getting high rate of oil recovery for irregular formations there is no alternative to dual completion and production. The recommended dual completion petroleum production technology enables development several formations by single well at the time. The dual completion petroleum production technology has been more important than ever because it is right not only for formations but for thin layers with undeveloped remaining reserves.
Źródło:
Management Systems in Production Engineering; 2018, 4 (26); 217-221
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technological Forecasting of Deformations in Flat Parts
Autorzy:
Ivanova, Tatiana N.
Biały, Witold
Fries, Jiri
Nordin, Victor
Powiązania:
https://bibliotekanauki.pl/articles/2064652.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
deformation
state stress
stress diagram
residual stresses
stress formation
grinding
Opis:
The deformation of a part occurring in the process of grinding directly influences its exploitation and quality parameters. The instability of shape and size, which occurs due to an imbalance of residual stress, can be the one of the major causes of deformation of a part. The decrease in stress slows down the deformation process. Considering the regularities of heat source intensity dependence on the grinding modes, it can be asserted that with increasing grinding depth and grinding wheel hardness, the value increases and it decreases with a growth in a speed of the part and the use of cooling. The higher the heat removal is and the better lubricant properties of the liquid are, the more significant the decrease in is. Changing these values allows regulation of the residual stresses. As a result of the research on determination of deformations, it is recommended to reduce thermal deformations by considering the geometric size of a plate to be machined, linear expansion coefficient of plate material and an allowance for nonflatness from thermal deformations. The value of nonflatness from thermal deformations is directly proportional to linear expansion coefficient of plate material and its square overall dimensions. At the same time, the value of nonflatness is inversely proportional to the plate thickness.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 1--12
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Prospects of Abrasive Treatment of Tough-To-Machine Materials
Autorzy:
Palacz, Magdalena
Ivanova, Tatiana N.
Kozlov, Alexander M.
Kaniak, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/2064680.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
face grinding
grinding wheel
steel
vortex air cooling
cooling-lubricant technological fluid
Opis:
In current conditions, great attention is paid to the quality of parts, which is in many ways determined by finishing operations of mechanical treatment, with surface grinding being the most widespread. Grinding process efficiency, abrasive tool wear intensity, machined surface quality and other features of grinding process depend on properties of the environment, where the cutting process takes place. Forced changing of conditions of this environment is one of the ways to control and optimize the grinding process, which can be reached due to finding new technological decisions. One of the most promising directions to solve this problem is the process of face grinding with discontinuous grinding tool and supply of cooling fluid or air in the cutting zone directly. Carried analysis of features of face grinding has shown that heat density can be decreased by the usage by grooved wheels with vortex air cooling or by supply of cooling-lubricant technological fluid. Obtained dependences of temperature field of part surface during grinding establish the influence of the length of working shoulders and grooves, vortex tubes number, outflow rate, temperature and flow rate of cold vortex flow of air. These data provide conscious control over the process of discontinuous face grinding by changing wheel grain size and grinding speed.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 166--177
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Distortion Mechanisms Used in Rotary Steerable Systems
Autorzy:
Ivanova, Tatyana N.
Božek, Pavol
Korshunov, Aleksandr I.
Koretskiy, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/2064845.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
rotary steerable system
distortion mechanisms
horizontal wells
crookedness increase
horizontal well holes
Opis:
Drilling with a rotary steerable system, the mechanical drilling speed increases by two times compared to drilling with a screw bottom-hole motor, which provides significant savings drilling-time. The effective length of the horizontal elbow increases, which enables to increase the production rate more than twice. It is found that in comparison with the bottom hole motor, rotary steerable system provides drilling smoother barrel, which reduces the risk of accidents to come out. The dependence between the type of the bent housing and the most rational fields of its application is revealed, recommendations on the choice of the rotary steerable system for various issues of directional drilling are developed.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 331--346
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Methane Concentration Distribution at U-Ventilated Longwall Outlet – Case Study
Autorzy:
Niewiadomski, Adam
Badura, Henryk
Ivanova, Tanyana N.
Repko, Alexandr
Yury, Nikitin R.
Powiązania:
https://bibliotekanauki.pl/articles/2064299.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
longwall ventilation
coal mine methane
correlation
autocorrelation
korelacja
autokorelacja
zagrożenie metanowe w kopalniach
wentylacja kopalni
Opis:
The methane hazard concerns a growing number of longwalls in the Polish coal mining industry each year. Mitigating this hazard, both of work safety and economic reasons requires the application of preventive measures adequate to its level. Commonly threat level is estimated based on registered methane concentrations, which fluctuate and highly depends on the place of measurement. The article presents studies on the average and maximum methane concentrations at the longwall outlet, including analyses of the interdependence of methane concentration in methanometry sensors installation locations.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 149 --168
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Possibility of Modeling Parts in Production Technology
Autorzy:
Ivanova, Tatyana N.
Korshunov, Aleksandr I.
Peterka, Jozef
Ratnikov, Ivan A.
Pokorny, Peter
Powiązania:
https://bibliotekanauki.pl/articles/2064854.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
modelling
production technology
CAD/CAM
machining
Opis:
The object of the research is a part “Flange half of differential case”, which has complex shape of a housing. The subjects of the research are the processes of selection of analogue material, workpiece production method, and justification of the structural and technological parameters of a part, taking into account 3D-modeling of the structure, deformations, displacements, stresses, and safety factor. The selection of analogue material is connected with suspension of production of open-hearth steel grade Mst.6 GOST 380-50. The objectives of the work include juxtaposition of computer models of deformations, displacements, stresses, safety factors of the part made of different analogue materials; comparison of models according workpiece production methods with consideration of material utilization ratio, structural and technological features of resulting workpieces. For modelling we have chosen the several types of materials. Research on modelling processes was fulfilled by means of software of Kompasv17, Solid Works, Solid works simulation. Volumetric models of parts and workpieces for all studied materials have been created taking into account the deformations, displacements, stresses, and safety factor. There results of modelling of “Flange half of differential case” allowed us to make recommendations for production conditions. These recommendations include the use of steel 45 GOST 1050-2013 as analogue material, hot forging of a workpiece on a horizontal forging machine, creating of design and technological documentation for the manufacture of the part.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 359--373
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on Adsorption and Flotation Properties of Herbal Reagents in Processing of Refractory Ores
Badania nad właściwościami adsorpcyjnymi i flotacyjnymi odczynników roślinnych w przetwórstwie materiałów ogniotrwałych
Autorzy:
Matveyeva, T.
Gromova, N.
Ivanova, E.
Powiązania:
https://bibliotekanauki.pl/articles/318697.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
flotacja
adsorpcja
wyciągi roślinne
odczynniki modyfikowane
minerały siarczkowe
flotation
adsorption
herbal extracts
modifying agents
sulfide minerals
Opis:
The results of experimental studies of the adsorption and flotation characteristics of herbal extracts which are produced from the leaves and stems of widely spread heracleum plant (HSE) and oak bark (OBE) are presented. Depending on flotation conditions – pH, plant extract concentration and the order of modifier and collector addition, the possibility of improvement of the quality of Cu and Au concentrates is discussed and the dominating factors of plant modifiers behavior in flotation process are defined. It was identified that tannin and plant extracts OBE may form stable insoluble complex compounds with Fe (III) on the surface of pyrrhotite and arsenopyrite which help to hydrophilize mineral surface and decrease its floatability under flotation conditions. Experimental results of adsorption studies using UV-spectroscopy and scanning electron microscopy, added by lazer and atomic force microscopy reveales that components of herbal extracts may fix on the surface of sulfide minerals providing the selective hydrophilic coating on their surface. The formation of the new phase of reactant on pyrite surface was identified, which changed greatly initial morphology of sulfide phase. Newly formed phase is characterized by discrete non-uniform distribution. Moreover, the extract forms rather stable coverage on the mineral surface which can’t be clean off by distilled water. The results of flotation tests justify that cheap plant extracts may be used as flotation modifying agents to separate hard-to-beneficiate pairs of sulfide minerals, replacing highly toxic chemical compounds by environmentally safe substances of plant origin.
Zaprezentowano wyniki badań eksperymentalnych nad właściwościami adsorpcyjnymi i flotacyjnymi ekstraktów roślinnych pochodzących z liści i łodyg powszechnie występującej rośliny heracleum plant (pol. barszcz; ang. skrót HSE) oraz kory dębu (ang. skrót OBE). W zależności od warunków flotacji – pH, stężenia ekstraktu roślinnego i kolejności dodawania modyfikatora i kolektora, omówiono możliwości podwyższenia jakości koncentratów Cu i Au, oraz określono dominujące cechy w zachowaniu modyfikatorów roślin w procesie flotacyjnym. Ustalono, że tanina i ekstrakty roślin OBE mogą uformować nierozpuszczalne złożone związki z Fe (III) na powierzchni pirotynu i arsenopirytu, co pomaga w hydrofilizacji mineralnej powierzchni i obniża jej flotowalność. Wyniki badań eksperymentalnych nad adsorpcją przy użyciu spektroskopu UV i skaningowej mikroskopii elektronowej wykazały, że składniki ekstraktów ziołowych mogą adsorbować na powierzchni minerałów siarczkowych zapewniając selektywną powłokę hydrofilową. Odkryto powstanie nowej fazy odczynnika na powierzchni pirytu, co w znaczącym stopniu zmienia wstępną morfologię fazy siarczkowej. Nowopowstała faza charakteryzuje się skokowym, nierównomiernym rozkładem. Ponadto, ekstrakt formuje dość stabilną powłokę na powierzchni mineralnej, której nie można zmyć wodą destylowaną. Wyniki testów flotacyjnych udowadniają, że tanie ekstrakty roślinne mogą być użyte jako czynniki modyfikujące flotację do oddzielania niskoopłacalnych minerałów siarczkowych, zamieniając wysokotoksyczne związki chemiczne na bezpieczne dla środowiska substancje pochodzenia roślinnego.
Źródło:
Inżynieria Mineralna; 2015, R. 16, nr 2, 2; 57-62
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Describing Neighborhoods of 5-Vertices in 3-Polytopes with Minimum Degree 5 and Without Vertices of Degrees from 7 to 11
Autorzy:
Borodin, Oleg V.
Ivanova, Anna O.
Kazak, Olesya N.
Powiązania:
https://bibliotekanauki.pl/articles/31342287.pdf
Data publikacji:
2018-08-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
planar graph
structure properties
3-polytope
neighborhood
Opis:
In 1940, Lebesgue proved that every 3-polytope contains a 5-vertex for which the set of degrees of its neighbors is majorized by one of the following sequences: (6, 6, 7, 7, 7), (6, 6, 6, 7, 9), (6, 6, 6, 6, 11), (5, 6, 7, 7, 8), (5, 6, 6, 7, 12), (5, 6, 6, 8, 10), (5, 6, 6, 6, 17), (5, 5, 7, 7, 13), (5, 5, 7, 8, 10), (5, 5, 6, 7, 27), (5, 5, 6, 6, ∞), (5, 5, 6, 8, 15), (5, 5, 6, 9, 11), (5, 5, 5, 7, 41), (5, 5, 5, 8, 23), (5, 5, 5, 9, 17), (5, 5, 5, 10, 14), (5, 5, 5, 11, 13). In this paper we prove that every 3-polytope without vertices of degree from 7 to 11 contains a 5-vertex for which the set of degrees of its neighbors is majorized by one of the following sequences: (5, 5, 6, 6, ∞), (5, 6, 6, 6, 15), (6, 6, 6, 6, 6), where all parameters are tight.
Źródło:
Discussiones Mathematicae Graph Theory; 2018, 38, 3; 615-625
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of mechanical properties and coefficients of sound insulation of innovative silicone composite material
Autorzy:
Lakov, L.
Ivanova, Y.
Jivov, B.
Aleksandrova, M.
Barovsky, N.
Powiązania:
https://bibliotekanauki.pl/articles/391426.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:
composites
sound insulation
soundproofing materials
heat insulating materials
Opis:
A new non-combustible, non-flammable, waterproof, long-lasting, heat-insulating composite material was made of glass foam granules (derived from glass waste) and a hydraulic inorganic binder in the form of a white Portland cement solution (CEM I 52.5 N), zeolite, airborne agent and water. The resulting composite is resistant to climatic temperature fluctuations, characterized by a coefficient of thermal conductivity of λ = 0.047 W/mK and is potentially applicable for the production of sound and heat insulating panels for non-bearing partition walls and external insulation of buildings. The technology for obtaining the product is in line with the current tendencies for the development of ecological productions through the utilization of waste materials and provides the opportunity to produce various standard monolith products suitable for direct use or further processing. Experimental studies of the acoustic and mechanical performance of standard experimental samples made from the developed composite material were carried out. The average sound insulation value is 30 dB. An average tensile strength of 0.036 MPa and an average compressive strength of 0.55 MPa were found.
Źródło:
Prace Instytutu Odlewnictwa; 2017, 57, 4; 245-251
1899-2439
Pojawia się w:
Prace Instytutu Odlewnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetocrystalline Anisotropy of Tb$\text{}_{1.1}$(FeCo)$\text{}_{11}$Ti
Autorzy:
Ivanova, T. I.
Pankratov, N. Yu.
Pastushenkov, Yu. G.
Skokov, K. P.
Powiązania:
https://bibliotekanauki.pl/articles/2013699.pdf
Data publikacji:
2000-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.60.Ch
Opis:
The Tb$\text{}_{1.1}$Fe$\text{}_{11-x}$Co$\text{}_{x}$Ti (x = 0, 1, 2, 3, 4) compounds with the ThMn$\text{}_{12}$-type structure were studied by using the torque and magnetization measurements in order to investigate temperature and composition behavior of the magnetocrystalline anisotropy. The Tb$\text{}_{1.1}$(FeCo)$\text{}_{11}$Ti single crystals demonstrated spin reorientation transition from easy axis to easy plane with the decrease in temperature. The substitution of Co for Fe produces an enhancement of the Curie temperatures, decreases temperatures of spin reorientation transition and appearance of canted structure.
Źródło:
Acta Physica Polonica A; 2000, 97, 5; 847-850
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
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