Si3N4ceramics were prepared by pressureless sintering at 1 650 ℃ in nitrogen atmosphere using Si3N4powder as main starting material and adding nanoAl2O3powder(
<正>2015 Refractories Symposium(2015(13t~(th))China Symposium on Monolithic Refractories in conjunction with 2015 China's Refractories Raw Materials Symposi