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- W2092186502 abstract "Si3N4/SiC nanocomposite material with yttria as sintering additive was prepared by hot pressing method. SiC nanoinclusions were produced by in situ reaction between SiO2 and C during the sintering process. The homogenous microstructure of hot pressed samples contained fine Si3N4 grains with average diameter of 200 nm. The post-sintering treatment at 1750°C for 26 and 70 hours significantly changed the microstructure of Si3N4/SiC composites. The difference between the average grain size of hot pressed sample and sample treated for 70 hours is approx. 300 %. In sake of this fact the mechanical properties (KIC, HV1) were not changed significantly. The largest differences between the mechanical properties of hot pressed and annealed samples were only 8 %." @default.
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- W2092186502 date "2006-10-01" @default.
- W2092186502 modified "2023-10-14" @default.
- W2092186502 title "Influence of Grain Size Distribution on Hardness and Fracture Toughness of Si<sub>3</sub>N<sub>4</sub>/SiC Nanocomposites" @default.
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- W2092186502 doi "https://doi.org/10.4028/www.scientific.net/ast.45.1680" @default.
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