%0 Journal Article
%T Microstructure and Phase Composition of Cold Isostatically Pressed and Pressureless Sintered Silicon Nitride
%A A. A. Parkhomenko
%A O. A. Lukianova
%A V. V. Krasilnikov
%A V. V. Sirota
%J Archive of "Nanoscale Research Letters".
%D 2016
%R 10.1186/s11671-016-1365-1
%X The microstructure and physical properties of new Y2O3 and Al2O3 oxide-doped silicon nitride ceramics fabricated by cold isostatic pressing and free sintering were investigated. The phase composition of produced material was also studied by X-ray diffraction at room and elevated temperature. The fabricated ceramics featured a microstructure of Si5AlON7 grains with a fine-grained ¦Á-Si3N4 with a small amount of Y2SiAlON5. Described ceramics is attractive for many high-temperature structural applications due to beneficial combination of fine-grained structure with improved mechanical properties and small weight loss
%K Silicon nitride
%K Microstructure
%K Grain size
%K Phase composition
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4792832/