本文選題：碳化硅粉體 + 熱處理��； 參考：《中國陶瓷》2017年06期

【摘要】：采用熱處理法對不規(guī)則形狀碳化硅粉體進行了整形研究。分析了不同粒徑碳化硅粉末在不同熱處理溫度下,碳化硅粉末的形貌、圓度、粒徑大小的變化,并對其再結(jié)晶動力學(xué)機制進行了初步探討。結(jié)果表明:高溫熱處理對碳化硅粉體能進行有效的整形,在2000~2050℃熱處理溫度范圍內(nèi),整形后碳化硅顆粒球形度高,顆粒表面圓滑;碳化硅粉在高溫下的再結(jié)晶傳質(zhì)方式為蒸發(fā)-凝聚,在再結(jié)晶初期,當再結(jié)晶時間一定時,碳化硅粉頸部增長率與原始顆粒半徑成反比,與溫度成正比。
[Abstract]:The shaping of irregular sic powder was studied by heat treatment. The morphology, roundness and particle size of silicon carbide powder with different particle sizes were analyzed at different heat treatment temperature. The kinetics of recrystallization was also discussed. The results show that high temperature heat treatment can effectively shape silicon carbide powder. In the temperature range of 2000 ~ 2050 鈩，

本文編號：1851292