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Tytuł:
Model of the double-rotor induction motor in terms of electromagnetic differential
Autorzy:
Adamczyk, D.
Wilk, A.
Michna, M.
Powiązania:
https://bibliotekanauki.pl/articles/140805.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
double rotor
electromagnetic differential
induction machine
Opis:
The paper presents a concept, a construction, a circuit model and experimental results of the double-rotor induction motor. This type of a motor is to be implemented in the concept of the electromagnetic differential. At the same time it should fulfill the function of differential mechanism and the vehicle drive. One of the motor shafts is coupled to the direction changing mechanical transmission. The windings of the external rotor are powered by slip rings and brushes. The inner rotor has the squirrel-cage windings. The circuit model parameters were calculated based on the 7.5 kW real single-rotor induction motor (2p = 4). Experimental verification of the model was based on comparison between the mentioned single-rotor motor and double-rotor model with the outer rotor blocked. The presented results showed relatively good compliance between the model and real motor.
Źródło:
Archives of Electrical Engineering; 2016, 65, 4; 761-772
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Bismuth Content on Complex Immittance Characteristics of Pressureless Sintered BiNbO4 Ceramics
Wpływ zawartości bizmutu na zespolone charakterystyki immitancyjne spiekanej swobodnie ceramiki BiNbO4
Autorzy:
Czekaj, D.
Lisińska-Czekaj, A.
Adamczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/350872.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
BiNbO4 ceramics
impedance spectroscopy
impedance and modulus analysis
ceramika BiNbO4
spektrometria impedancyjna
pomiar impedancji
Opis:
Goal of the present research was to study immittance properties of BiNbO4 ceramics fabricated by the solid state reaction route followed by pressureless sintering. Four sets of samples were examined, namely the one fabricated from the stoichiometric mixture of oxides, viz. Bi2 O3 and Nb2 O5 as well as the ones with an excess of 3%, 5% and 10% by mole of Bi2 O3. The immittance properties were studied by impedance spectroscopy. Measurements were carried out within the frequency range ν =20Hz-1MHz and temperature range T =RT-550°C. The Kramers-Kronig data validation test was employed in the impedance data analysis. It was found that complex impedance first increases with an increase in Bi2 O3 content and decreases for 10mol% excess of Bi2 O3. Two relaxation phenomena manifested themselves at elevated temperature (T>267°C) within the measuring frequency range. The conductivity relaxation phenomenon (M″(ν) spectra) took place at higher frequency than the phenomenon with dominant resistive component (Z″(ν) spectra).
Celem niniejszej pracy było zbadanie właściwości immitancyjnych ceramiki BiNbO4 wytworzonej metodą reakcji w fazie stałej i spiekania swobodnego. Badaniom poddano cztery zestawy próbek wytworzonych ze stechiometrycznej mieszaniny tlenków Bi2 O3 i Nb2O5 oraz mieszaniny zawierajacej nadmiar Bi2 O3 w ilości 3, 5 i 10% molowych. Badania przeprowadzono z zastosowaniem spektroskopii impedancyjnej. Pomiary dokonano w zakresie częstotliwości ν =20Hz-1MHz i temperatury T =RT-550°C. Do analizy zgodności danych pomiarowych zastosowano test Kramersa-Kroniga. Stwierdzono, że ze wzrostem zawartości Bi2 O3 w mieszaninie do 5% molowych wzrasta impedancja próbek, która dla 10% molowych maleje poniżej wartości zarejestrowanej dla BiNbO4 bez nadmiaru Bi2 O3. Zaobserwowano obecność dwóch procesów relaksacyjnych w temperaturze T>267°C. Stwierdzono, że zjawisko relaksacji przewodnictwa (widma M″(ν)) zachodzi w wyższej częstotliwości niż zjawisko z dominującą składową rezystywną (widma Z″(ν)).
Źródło:
Archives of Metallurgy and Materials; 2014, 59, 1; 225-229
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrophysical Properties of the Multicomponent PbFe1/2Nb1/2O3 Ceramics Doped by Li
Autorzy:
Bochenek, D.
Niemiec, P.
Adamczyk, M.
Stokłosa, Z.
Powiązania:
https://bibliotekanauki.pl/articles/355328.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ferroelectromagnetic
multiferroics
PFN
Opis:
The paper presents the results of research on the influence of sintering temperature on microstructure, DC electrical conductivity, dielectric, ferroelectric and magnetic properties of PbFe1/2Nb1/2O3 ceramics doped by Li in the amount of 5.0% wt., in the abbreviation PLiFN. The ceramic samples of the PLiFN material were obtained by the two-stage synthesis – columbite method and sintered by free sintering methods. Introduction to the basic PbFe1/2Nb1/2O3 composition of the lithium admixture to decrease the electrical conductivity and reduction of dielectric loss. The tests have shown that the increase in sintering temperature orders the PLiFN ceramic microstructure, which has a positive effect on its electrophysical properties. At room temperature, the PLiFN ceramic samples show both ferroelectric and ferromagnetic properties. Considering the functional parameters of the obtained ceramic samples, the optimal technological conditions are 1100°C/2 h.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 227-233
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Lanthanum Dopant on the Structure and Electric Properties of BaBi2Nb2O9 Ceramics
Autorzy:
Adamczyk-Habrajska, M.
Goryczka, T.
Szalbot, D.
Dzik, J.
Rerak, M.
Bochenek, D.
Powiązania:
https://bibliotekanauki.pl/articles/353535.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ferroelectric relaxor
ceramics
impedance spectroscopy
Opis:
The paper reports the consequences of lanthanum modifications of barium bismuth niobiate (BaBi2 Nb2 O9) ceramics. The discussed materials were prepared by solid state synthesis and a one-step sintering process. The investigations are focused on dielectric aspects of the modification. The presented results reveal that the trivalent lanthanum ions incorporate twovalent barium ions, which is connected with the creation of A-site cationic vacancies as well as oxygen vacancies. Such a scenario results in significant decreasing in grain boundaries resistivity. The activation energy of grain boundaries conductivity is significantly reduced in the case of lanthanum admixture.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 1; 207-214
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of V2O5 additive on structure and dielectric properties of BiNbO4 ceramics
Wpływ V2O5 na strukturę i właściwości dielektryczne ceramiki BiNb4
Autorzy:
Lisińska-Czekaj, A.
Czekaj, D.
Osińska, K.
Adamczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/351300.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
BiNbO4 ceramics
V2O5 additive
morphology
crystal structure
phase analysis
dielectric properties
ceramika BiNbO4
dodatek V2O5
morfologia
struktura krystaliczna
analiza fazowa
właściwości dielektryczne
Opis:
Goal of the present research was to investigate the influence of V2O5 additive on the structure and dielectric properties of BiNbO4 ceramics. To fabricate BiNbO4 ceramics with V2O5 added the solid state reaction route and pressureless sintering was utilized. Thus obtained ceramics was characterized in terms of its microstructure (SEM), chemical composition (EDS), phase composition and crystalline structure (X-ray phase and structural analysis, respectively). Also dielectric properties in both temperature and frequency domains were investigated. The impedance spectroscopy was utilized for dielectric characterization and the measurements of complex impedance were performed within the frequency range ν =10Hz-1MHz and temperature range T =RT-550°C. It was found that V2O5 additive changed slightly lattice parameters of BiNbO4 ceramics, decreased porosity of samples and revealled relaxation phenomena within the frequency ranges ν =102-103 Hz and ν =105-106 Hz at temperature T>285°C.
Celem niniejszej pracy było zbadanie wpływu dodatku V2O5 na strukturę i właściwości dielektryczne ceramiki BiNbO4. Do wytworzenia ceramiki zastosowano metodę reakcji w fazie stałej i spiekanie swobodne w atmosferze powietrza. Ceramikę poddano badaniom morfologii (SEM). składu chemicznego (EDS) oraz rentgenowskiej analizie fazowej i strukturalnej. Właściwości dielektryczne w domenie częstotliwości (v =10Hz-lMHz) i temperatury (T =RT-550°C) zbadano przy pomocy spektroskopii impedancyjnej. Stwierdzono, że dodatek V2O5 powoduje niewielką zmianę parametrów komórki elementarnej, zmniejsza porowatość ceramiki oraz pozwolił zaobserwować zjawiska relaksacyjne występujące w dwóch zakresach częstotli- wości: v = 102-103 Hz oraz v =105-106 Hz w temperaturze T>285°C.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 4; 1387-1390
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Sr2+ Dopant on Microstructure and Electric Properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) Ceramics
Autorzy:
Radoszewska, D.
Goryczka, T.
Adamczyk, M.
Wodecka-Duś, B.
Bochenek, D.
Kozielski, L.
Powiązania:
https://bibliotekanauki.pl/articles/352406.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
microstructure
Sr2+
electric properties
(BaxCa1-x)(ZryTi1-x)O3
Opis:
The discovery of (BaxCa1-x)(ZryTi 1-x)O3 lead-free ceramics drawn a lot of attention to those novel materials because of their excellent piezoelectric properties. However, quite a little attention has been paid to other features of the material. This article reports a wide range of research, including composition, structure and microstructure, dielectric response and impedance spectroscopy in order to systematize and expand knowledge about this peculiar ceramics and strontium doping effect on its properties. In order to test that influence a series of samples with various strontium concentration, precisely the admixtures of 0.02, 0.04 and 0.06 mol% were prepared, as well as basic ceramics to compare obtained results.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 3; 1295-1302
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Correlation Between Structure, Microstructure and Dielectric Properties of Bi7Fe3Ti3O21 Ceramics Obtained in Different Conditions
Autorzy:
Szalbot, D.
Bartkowska, J. A.
Feliksik, K.
Bara, M.
Chrunik, M.
Adamczyk-Habrajska, M.
Powiązania:
https://bibliotekanauki.pl/articles/356042.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multiferroic materials
Aurivillius phases
Bi7Fe3Ti3O21
dielectric properties
Opis:
Multiferroic six-layer Aurivillius type Bi7Fe3Ti3O21 ceramics was obtained by conventional mixed oxides method. The final sintering process was taken in several different sintering times, which determined changes in properties of discussed ceramic material. The structure and dielectric properties of the material are reported. In order to examine the technological conditions on the crystal structure, XRD analysis was carried out. The microstructure, as well as the quantitative and qualitative analysis of the chemical composition were investigated by scanning electron microscope with an energy dispersion spectrometer. The main purpose of the paper is to present the effect of sintering time on the microstructure, crystallographic structure and dielectric properties of Bi7Fe3Ti3O21 ceramics.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 2; 879-884
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Ho Doping Contents on the Structural, Microstructure and Dielectric Properties of Bi5Ti3FeO15 Aurivillius Ceramics
Autorzy:
Tomaszewska, M.
Dzik, J.
Wodecka-Duś, B.
Pikula, T.
Adamczyk-Habrajska, M.
Szalbot, D.
Chocyk, D.
Powiązania:
https://bibliotekanauki.pl/articles/2049646.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ceramics
Bi5Ti3FeO15
Ho3+ doping
microstructure
structure
dielectric properties
Opis:
Aurivillius Bi5-xHoxTi3FeO15 (BHTFO) multiferroic ceramics with different holmium doping contents were synthesized by conventional solid state reaction. The effect of holmium doping on the microstructure, structural and dielectric behaviors of BHTFO ceramics were investigated in details. Microstructure and crystalline structure studies of ceramics were carried out at room temperature while dielectric properties were investigated in a wide range of temperature (T = 25ºC-550ºC) and frequency (20Hz-1MHz).
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 91-96
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of La3+ Doping Effect on Piezoelectric Coefficients of BLT Ceramics
Autorzy:
Wodecka-Dus, B.
Kozielski, L.
Erhart, J.
Pawełczyk, M.
Radoszewska, D.
Adamczyk, M.
Bochenek, D.
Powiązania:
https://bibliotekanauki.pl/articles/352118.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
BLT
piezoelectric coefficients
Lead-free piezoelectric ceramics
Opis:
Effects of La3+ admixture in barium lanthanum titanate (BLT) ceramics system with colossal permittivity on performance of prospective piezoelectric cold plasma application were studied. Usage of cold atmospheric pressure plasma appears promising in terms of industrial and healthcare applications. Performed investigation provide consistent evaluation of doping lanthanum amount on piezoelectric coefficients values with simultaneous capability of charge accumulation for effective plasma generation. Modification of ferroelectric materials with heterovalent ions, however with the lower radii than the original atoms, significantly affects their domain mobility and consequently electromechanical properties. To determine the piezoelectric coefficients, the resonanceantiresonance method was implemented, and values of piezoelectric and dielectric parameters were recorded. Finally the results indicated that addition of 0.4 mol.% of La3+ ions to the ceramic structure maximally increased the values of piezoelectric coefficient to d33 = 20 pC/N and to huge dielectric constant to ε33 T = 29277.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2A; 691-696
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication and characterization of BST60/40//PVDF ceramic-polymer composite
Otrzymywanie i charakterystyka kompozytów ceramiczno-polimerowych BST60/40/PVDF
Autorzy:
Osińska, K.
Adamczyk, M.
Dzik, J.
Bernard, H.
Czekaj, D.
Powiązania:
https://bibliotekanauki.pl/articles/352886.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
PVDF
kompozyty ceramiczno-polimerowe
przenikalność dielektryczna
BST
ceramic-polymer composites
dielectric permittivity
Opis:
In this paper BST//PVDF composites with 0-3 connectivity were prepared from (Ba0.6Sr0.4)O3 (BST60/40) ceramic powder and polyvinylidene fluoride (PVDF) powder by a hot pressing method, for different concentration of the ceramic phase (cV). Morphology of BST//PVDF composites was observed by transmission electron microscopy and scanning electron microscopy, whereas the crystalline structure was studied by the X-ray diffraction method. The temperature dependence of dielectric permittivity of BST//PVDF composites was measured in the frequency range of f=10kHz-1MHz. The split-post dielectric resonator (SPDR) was used for the measurements of the real and imaginary part of dielectric permittivity of BST//PVDF composites in the microwave frequency range of f=3-10GHz. It was found, that the dielectric properties of the ceramic-polymer composite for cV >20% change significantly for both small (f=10kHz-1MHz) and high (f=3-10GHz) frequencies. The abrupt increase in permittivity may indicate an excess of the percolation threshold, so the ceramic-polymer composite for the concentrations of the active ceramic phase cV >20% cannot be indexed as composites with 0-3 connectivity.
W ramach prezentowanej pracy, kompozyty BST//PVDF, o sposobie łączenia faz 0-3, otrzymywane były z proszku ceramicznego (Ba0:6Sr0:4)O3 (BST60/40) oraz proszku poli(fluorku winylidenu) (PVDF), dla różnego stężenia fazy ceramicznej (cV ), metodą prasowania na gorąco. Morfologie kompozytów BST//PVDF obserwowano z zastosowaniem transmisyjnego oraz skaningowego mikroskopu elektronowego. Strukturę krystaliczną badano metodą dyfrakcji promieniowania rentgenowskiego. Temperaturowa zależność przenikalności elektrycznej mierzona była w zakresie częstotliwości f =10kHz-1MHz. Do pomiarów w zakresie bardzo wysokich częstotliwości f =3-10GHz zastosowano rezonator dielektryczny SPDR. Można zauważyć, że zarówno dla niskich ( f =10kHz-1MHz), jak i wysokich ( f =3-10GHz) częstotliwości właściwości dielektryczne kompozytów ceramiczno-polimerowych dla stężenia fazy ceramicznej cV >20%, zmieniają się w znacznym stopniu. Gwałtowny wzrost wartości przenikalności może świadczyć o przekroczeniu progu perkolacji, a więc kompozyty ceramiczno-polimerowe o stężeniu aktywnej fazy ceramicznej cV >20% nie mogą być indeksowane jako kompozyty o sposobie łączenia faz 0-3.
Źródło:
Archives of Metallurgy and Materials; 2011, 56, 4; 1083-1091
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PLZT microfibers technology optimization
Autorzy:
Kozielski, L.
Adamczyk, M.
Feliksik, K.
Bochenek, D.
Clemens, F.
Powiązania:
https://bibliotekanauki.pl/articles/958205.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Electrocaloric Efect
piezoelectric fibers
ferroelectric properties
Opis:
Electrocaloric (EC) structures for a new generation of cooling or heating elements utilize the temperature dependence of spontaneous polarization in some ferroelectric materials to convert waste heat into electricity and vice versa. A (Pb0.93La0.07) (Zr0.65Ti0.35)O3 material, have the largest recorded pyroelectric coefficient. An effective predicted form for such applications is fiber, due to small heat capacitance and quick response time, even for nano second laser excitation. Consequently, the presented work provides a description of the optimization of structural, ferroelectric and piezoelectric properties of obtained fibers, finally concluding on necessity of sintering temperature reduction in 100°C in contrast to bulk form to effectively prevent its destruction.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 3; 1471-1476
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Technology and Structural Properties of Special Glass Modified (Ba0.6Pb0.4)TiO3 Ceramics
Autorzy:
Wodecka-Dus, B.
Adamczyk, M.
Goryczka, T.
Dzik, J.
Radoszewska, D.
Kozielski, L.
Bochenek, D.
Powiązania:
https://bibliotekanauki.pl/articles/351884.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
(BaxPb1−x)TiO3 ceramics
special glasses
SEM microstructures
XRD measurements
Opis:
The present paper widely describes the details of technology of (Ba0.6Pb0.4)TiO3 ceramics modified with PbO-B2O3-Al2O3-WO3 special glass, as well as the influence of admixture on the microstructure and crystal structure of basic material. The microstructure investigations reveal the significant increase of grain size and a decrease of pores participation in volume of modified samples, whereas the X-Ray Diffraction (XRD) measurements show a decrease of the volume of unit cell. The obtained results are discussed due to processes occurring during the sintering process at high temperature.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 1761-1766
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species composition of arthropods on six understory plant species growing in high and low light conditions
Autorzy:
Karolewski, P.
Lukowski, A.
Adamczyk, D.
Zmuda, M.
Giertych, M.J.
Maderek, E.
Powiązania:
https://bibliotekanauki.pl/articles/2078197.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Cornus sanguinea
Corylus avellane
Frangula alnus
Prunus padus
Prunus serotine
Sambucus nigra
Opis:
The quality of leaves as food for insects is affected both by plant species and the light conditions present during growth. Little information exists concerning the impact of these factors on the diversity of insects that live in the forest understory. We studied arthropod fauna on six understory plant species commonly occurring in Europe. Different groups of herbivorous insects were identified, as well as predatory insects and arachnids. We analysed the influence of both plant species and light conditions during growth (low light; high light) on the species spectrum, and the number of insect specimens present. The resulting data were investigated in relation to the susceptibility of plant leaves to feeding by folivorous insects, as determined in earlier studies. We compared the similarity in species diversity, based on the Sørensen’s coefficient, and discussed the potential causes of observed differences in leaf damages. We found a total of 153 arthropod taxa on studied plants, under both light conditions. Corylus avellana and Prunus serotina, species characterized by greater leaf damage, have a wider diversity of arthropod species, and a greater number of herbivorous insects. Generally, light conditions had a greater effect on arthropod abundance than on species diversity. For two plant species, C. avellana and P. serotina, light conditions strongly, but reversely, influenced the total number of insects and, thus, the extent of leaf damage. The number and abundance of zoophagous species, and ratio to folivores (except C. avellana) are associated more with plant species than with light conditions
Źródło:
Dendrobiology; 2020, 84; 58-80
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Casting Velocity on Structure of Al Continuous Ingots
Autorzy:
Bartocha, D.
Wróbel, T.
Szajnar, J.
Adamczyk, W.
Jamrozik, W.
Dojka, M.
Powiązania:
https://bibliotekanauki.pl/articles/354184.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
aluminum
primary structure
ingot
continuous casting
simulation of solidification process
Opis:
The aim of paper was determination of influence of the casting velocity in horizontal continuous casting process on solidification phenomenon and next primary structure of aluminum ingots. In the range of studies was conducted the experiment concerning continuous casting of Al ingots with diameter 30 mm at velocity from 30 to 80 mm/min. Moreover was developed adequate to the real the virtual model of cooled water continuous casting mould, which was used in simulation of solidification process of Al continuous ingot, made in ANSYS Fluent software. In result was determined the influence of casting velocity and temperature of cooling water on position of crystallization front inside the continuous casting mould. While the shape and size of grains in primary structure of Al continuous ingots were determined on the basis of metallographic macroscopic studies. On the basis of the results analysis was affirmed that increase of casting velocity strongly influences on position of crystallization front and causes increase of temperature of ingot leaving the continuous casting mould. In result the increase of casting velocity supposedly leads to decrease of temperature gradient on crystallization front what creates coarse grains in primary structure of aluminum continuous ingots and caused low usable properties i.e. suitability to plastic deformation.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1609-1613
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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