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Wyszukujesz frazę "ferrite" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The effect of filler content on the viscosity of polymer composites
Autorzy:
Markovičová, Lenka
Zatkalíková, Viera
Kojnoková, Tatiana
Powiązania:
https://bibliotekanauki.pl/articles/34670835.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
ferrite filler
polymer matrix
composites
polyethylene
rheology
wypełniacz ferrytowy
matryca polimerowa
kompozyty
polietylen
reologia
Opis:
Currently, research on materials containing magnetic magnetic particles give opportunity to the prepare and study of composites with interesting magnetic features. One possibility for producing such materials is the use of fillers with magnetic properties. The final properties of such composites depend mainly on characteristic polymer matrix. However, the addition of magnetic materials arose use of new technologies. Such builders include the magnetic ferrites. Metal hexaferrites represent well researched group of magnetic materials (Mallick, 1993). Their high values of magnetocrystalline anisotropy and saturation magnetization enable widespread application of these materials as permanent magnets. Low price and excellent chemical stability with suitable magnetic characteristics classified ferrites to one of the most important magnetic materials (Rigbi, 1988). The experimental material used was a composite formed by combining a polymer matrix (linear polyethylene HDPE), and the hard-magnetic strontium ferrite labeled FD 160S as a filler. Composites with different filler contents were prepared from the starting materials. The dependence of viscosity on the content of ferrite filler was determined by rheological measurements.
Źródło:
Quality Production Improvement - QPI; 2021, 3, 1; 293-298
2657-8603
Pojawia się w:
Quality Production Improvement - QPI
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The micro-mechanisms of failure of nodular cast iron
Autorzy:
Vasko, A.
Chalupova, M.
Powiązania:
https://bibliotekanauki.pl/articles/112051.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
nodular cast iron
ferrite-pearlitic matrix
mechanical properties
micromechanisms of failure
żeliwa sferoidalne
macierz ferrytyczno-perlityczna
właściwości mechaniczne
niewydolność mikromechanizmów
Opis:
The contribution deals with a comparison of the micro-mechanisms of failure of nodular cast irons at static, impact and fatigue stress. Several specimens of ferrite-pearlitic nodular cast irons with different content of ferrite in a matrix were used for metallographic analysis, mechanical tests and micro-fractographic analysis. Mechanical properties were found by static tensile test, impact bending test and fatigue tests. The micro-fractographic analysis was made with use of scanning electron microscope VEGA II LMU on fracture surfaces of the specimens fractured by these mechanical and fatigue tests. Fracture surfaces of analysed specimens are characteristic of mixed mode of fracture. Micro-mechanism of failure of nodular cast irons is dependent on the method of stress.
Źródło:
Production Engineering Archives; 2014, 5, 4; 31-35
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons
Autorzy:
Belan, Juraj
Tillová, Eva
Uhríčik, Milan
Pastierovičová, Lucia
Powiązania:
https://bibliotekanauki.pl/articles/26081550.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
badanie ultradźwiękowe
zapewnienie jakości żeliwa
grafitowy kształt
współczynnik perlitu i ferrytu
ultrasonic investigation
quality assurance of cast iron
graphite shape
pearlite and ferrite ratio
quantitative evaluation of graphite and matrix
Opis:
Despite the tendency of the current industry, especially the automotive industry, it is to use modern, light and super-strong materials based on Al or HSLA steels, the application of classic materials such as cast iron still makes sense, especially concerning price and excellent castability. The article presents one of the possible ways of using the ultrasonic non-destructive method in quality control and simpli-fication of the identification of the type of cast iron concerning the change of parameters of ultrasound propagation in materials. The main criteria for assessing the quality and determining the type of graphite cast iron were considered to be the rate of propagation of ultrasound - cL and the value of attenuation , which vary depending on the shape of the graphite and matrix. Graphitic cast irons with different graphite shapes (lamellar, vermicular, and globular shapes) and a matrix with different ferrite/perlite ratios were used as experimental material. Along with the ultrasonic tests, a metallographic analysis was also performed to quantify the microstructure of cast irons.
Źródło:
Production Engineering Archives; 2023, 29, 1; 23--27
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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