Temat: kompozyt - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The influence of pressure die casting parameters on distribution of reinforcing particles in the AlSi11/10% SiC composite
Autorzy:: Pasieka, A.
Konopka, Z.
Powiązania:: https://bibliotekanauki.pl/articles/382058.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composite
metallography
pressure die casting
structure
kompozyt
metalografia
odlewanie ciśnieniowe
struktura
Opis:: The method of pressure die casting of composites with AlSi11 alloy matrix reinforced with 10 vol. % of SiC particles and the analysis of the distribution of particles within the matrix is presented. The composite castings were produced at various values of the piston velocity in the second stage of injection, at diverse intensification pressure values, and various injection gate width values. The distribution of particles over the entire cross-section of the tensile specimen is shown. The index of distribution was determined on the basis of particle count in elementary measuring fields. The regression equation describing the change of the considered index was found as a function of the pressure die casting parameters. The conclusion presents an analysis of the obtained results and their interpretation.
Źródło:: Archives of Foundry Engineering; 2013, 13, 3; 64-67
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Properties of Sinters Produced from Commercially Available Powder Mixtures
Autorzy:: Borowiecka-Jamrozek, J.
Lachowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/382036.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composite
diamond
metal matrix
sinter
hot pressing
kompozyt
diament
osnowa metalowa
spiek
prasowanie na gorąco
Opis:: This paper discusses the mechanical properties of a material fabricated from commercially available metal powder mixtures designed for use as a metal matrix of diamond impregnated composites. The mixtures with the catalogue numbers CSA and CSA800 provided by a Chinese producer are suitable for experimental laboratory testing. The specimens were fabricated in a graphite mould using hot pressing. The material was tested for density, porosity, hardness, and tensile strength under static loading. A scanning electron microscope (SEM) was used to analyze the microstructure and cleavage fracture of broken specimens. It was essential to determine how the chemical composition and the fabrication process affected the microstructure and properties of the material. The properties of the sinters were compared with those of hot pressed specimens fabricated from sub-micron size cobalt powder (Cobalt SMS). Although the as-consolidated material is inferior to cobalt, it displays a favourable combination of hardness, yield strength and ductility, and seems to have a great potential for moderate and general purpose applications.
Źródło:: Archives of Foundry Engineering; 2016, 16, 4; 37-40
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Mechanical Properties and Microstructure of WE43 Magnesium Matrix Composite Reinforced SiC Particles
Autorzy:: Rzychoń, T.
Dybowski, B.
Gryc, A.
Dudek, M.
Powiązania:: https://bibliotekanauki.pl/articles/380522.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnesium matrix composite
microstructure
WE43 alloy
stir casting
stop magnezu
kompozyt
stop WE43
mikrostruktura
Opis:: Magnesium alloys containing yttrium and neodymium are known to have high specific strength, good creep and corrosion resistance up to 250°C. The addition of ceramic particles strengthens the metal matrix composite resulting in better wear and creep resistance while maintaining good machinability. In the present study, WE43 magnesium matrix composite reinforced with SiC particles were fabricated by stir casting. The microstructure of the composite was investigated by optical microscopy, quantitative metallography, scanning electron microscope and XRD analysis. Microstructure characterization of WE43 MMC showed homogeneous reinforcement distribution and presence of the small amount of porosity at the interface. A thin layer consists of zirconium-rich particles was observed at the interface. In the microstructure, inclusions of the yttrium oxide were found. The presence of SiC particles assisted in improving hardness and in decreasing the ultimate tensile strength, yield tensile strength and elongation.
Źródło:: Archives of Foundry Engineering; 2015, 15, 1 spec.; 99-102
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Physical Properties of Copper Based MMC Strengthened with Alumina
Autorzy:: Kaczmar, J. W.
Granat, K.
Kurzawa, A.
Grodzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/380691.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: metal matrix composite
copper
alumina particles
squeeze casting
thermal conductivity
electrical conductivity
kompozyt
miedź
przewodność cieplna
przewodność elektryczna
Opis:: The aim of this work is the development of Cu-Al2O3 composites of copper Cu-ETP matrix composite materials reinforced by 20 and 30 vol.% Al2O3 particles and study of some chosen physical properties. Squeeze casting technique of porous compacts with liquid copper was applied at the pressure of 110 MPa. Introduction of alumina particles into copper matrix affected on the significant increase of hardness and in the case of Cu-30 vol. % of alumina particles to 128 HBW. Electrical resistivity was strongly affected by the ceramic alumina particles and addition of 20 vol. % of particles caused diminishing of electrical conductivity to 20 S/m (34.5% IACS). Thermal conductivity tests were performed applying two methods and it was ascertained that this parameter strongly depends on the ceramic particles content, diminishing it to 100 Wm-1K-1 for the composite material containing 30 vol.% of ceramic particles comparing to 400 Wm-1K-1 for the unreinforced copper. Microstructural analysis was carried out using SEM microscopy and indicates that Al2O3 particles are homogeneously distributed in the copper matrix. EDS analysis shows remains of silicon on the surface of ceramic particles after binding agent used during preparation of ceramic preforms.
Źródło:: Archives of Foundry Engineering; 2014, 14, 2; 85-90
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Metal-metal Cast Composites
Autorzy:: Braszczyńska-Malik, K. N.
Przełożyńska, E.
Powiązania:: https://bibliotekanauki.pl/articles/382051.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composite
AZ91
magnesium alloys
Ti6Al4V particles
microstructure
kompozyt
stop magnezu
cząstki Ti6Al4V
mikrostruktura
Opis:: Microstructure of experimental AZ91 magnesium matrix composite with Ti6Al4V particles is presented. Composite were fabricated by casting method. The obtained experimental composite exhibited uniform distribution of Ti6Al4V particles within the matrix alloy. Neither clusters of particles nor any new phases creating during component reactions are observed.
Źródło:: Archives of Foundry Engineering; 2014, 14, 3 spec.; 110-113
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wear Resistance of TiC Reinforced Cast Steel Matrix Composite
Autorzy:: Sobula, S.
Olejnik, E.
Tokarski, T.
Powiązania:: https://bibliotekanauki.pl/articles/381832.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: kompozyty z osłoną metalową
MMC
kompozyt
staliwo zbrojone TiC
odporność na zużycie
metal matrix composites
MMCs
composite casting
reinforced cast steel
wear resistance
Opis:: Wear resistance of TiC-cast steel metal matrix composite has been investigated. Composites were obtained with SHSB method known as SHS synthesis during casting. It has been shown the differences in wear between composite and base cast steel. The Miller slurry machine test were used to determine wear loss of the specimens. The slurry was composed of SiC and water. The worn surface of specimens after test, were studied by SEM. Experimental observation has shown that surface of composite zone is not homogenous and consist the matrix lakes. Microscopic observations revealed the long grooves with SiC particles indented in the base alloy area, and spalling pits in the composite area. Due to the presence of TiC carbides on composite layer, specimens with TiC reinforced cast steel exhibited higher abrasion resistance. The wear of TiC reinforced cast steel mechanism was initially by wearing of soft matrix and in second stage by polishing and spalling of TiC. Summary weight loss after 16hr test was 0,14÷0,23 g for composite specimens and 0,90 g for base steel.
Źródło:: Archives of Foundry Engineering; 2017, 17, 1; 143-146
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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