长春工业大学学报(自然科学版)
長春工業大學學報(自然科學版)
장춘공업대학학보(자연과학판)
JOURNAL OF CHANGCHUN UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
4期
421-424
,共4页
王超%张航%王蕾%张英波%金松哲
王超%張航%王蕾%張英波%金鬆哲
왕초%장항%왕뢰%장영파%금송철
硅藻土%β-SiC%碳热还原反应%催化剂
硅藻土%β-SiC%碳熱還原反應%催化劑
규조토%β-SiC%탄열환원반응%최화제
diatomite%β-SiC%carbothermal reduction method%catalyst
以硅藻土和活性碳为原料,采用碳热还原法合成SiC粉体。研究了加热温度、保温时间、配碳量和催化剂量对产物产率的影响,并初步探讨了SiC粉体的合成过程机理。结果表明,合成产物主要晶相为β-SiC ,优化工艺条件下产物粉体中SiC的含量最高可达92.85%。
以硅藻土和活性碳為原料,採用碳熱還原法閤成SiC粉體。研究瞭加熱溫度、保溫時間、配碳量和催化劑量對產物產率的影響,併初步探討瞭SiC粉體的閤成過程機理。結果錶明,閤成產物主要晶相為β-SiC ,優化工藝條件下產物粉體中SiC的含量最高可達92.85%。
이규조토화활성탄위원료,채용탄열환원법합성SiC분체。연구료가열온도、보온시간、배탄량화최화제량대산물산솔적영향,병초보탐토료SiC분체적합성과정궤리。결과표명,합성산물주요정상위β-SiC ,우화공예조건하산물분체중SiC적함량최고가체92.85%。
SiC powders are synthesized by carbothermal reduction method using diatomite and activated carbon as raw material . T he factors influencing the production rate such as heating temperature , holding time ,the amount of catalyst and carbon content are studied ,and the reaction mechanism of SiC synthesis is discussed .The results show that the main crystal phase of the final product is β-SiC and production rate of SiC is up to 92 .85% under optimal conditions .