现代技术陶瓷
現代技術陶瓷
현대기술도자
ADVANCED CERAMICS
2012年
4期
20-23
,共4页
陈秀娟%蔺锡柱%王艳艳%栾艺娜
陳秀娟%藺錫柱%王豔豔%欒藝娜
진수연%린석주%왕염염%란예나
ZrB2-SiC%体积密度%球磨时间%烧结制度
ZrB2-SiC%體積密度%毬磨時間%燒結製度
ZrB2-SiC%체적밀도%구마시간%소결제도
ZrB2 -- SiC%density%milling time%sintering regulation
以ZrB2和SiC粉为原料，采用Si3N4球为球磨介质，通过等静压成型及无压烧结制备了ZrB2—SiC复相陶瓷。实验确定了ZrB2-SiC复相陶瓷的烧结制度，并研究了SiC含量与球磨时间对盈B2—SiC复相陶瓷体积密度的影响。结果表明：随着ZrB2球磨时间的增加，zrB2颗粒粒径逐渐减小，复相陶瓷的体积密度逐渐增加；随着SiC含量的增加，复相陶瓷体积密度降低。ZrB2最佳球磨时间为6h，SiC最佳含量为20％，ZrB2-SIC20％（体积分数）复相陶瓷体积密度达到4．98g／cm2。
以ZrB2和SiC粉為原料，採用Si3N4毬為毬磨介質，通過等靜壓成型及無壓燒結製備瞭ZrB2—SiC複相陶瓷。實驗確定瞭ZrB2-SiC複相陶瓷的燒結製度，併研究瞭SiC含量與毬磨時間對盈B2—SiC複相陶瓷體積密度的影響。結果錶明：隨著ZrB2毬磨時間的增加，zrB2顆粒粒徑逐漸減小，複相陶瓷的體積密度逐漸增加；隨著SiC含量的增加，複相陶瓷體積密度降低。ZrB2最佳毬磨時間為6h，SiC最佳含量為20％，ZrB2-SIC20％（體積分數）複相陶瓷體積密度達到4．98g／cm2。
이ZrB2화SiC분위원료，채용Si3N4구위구마개질，통과등정압성형급무압소결제비료ZrB2—SiC복상도자。실험학정료ZrB2-SiC복상도자적소결제도，병연구료SiC함량여구마시간대영B2—SiC복상도자체적밀도적영향。결과표명：수착ZrB2구마시간적증가，zrB2과립립경축점감소，복상도자적체적밀도축점증가；수착SiC함량적증가，복상도자체적밀도강저。ZrB2최가구마시간위6h，SiC최가함량위20％，ZrB2-SIC20％（체적분수）복상도자체적밀도체도4．98g／cm2。
In this study, with ZrB2 and SiC powders used as raw materials and Si3 N4 as milling medium, ZrB2--SiC composites were prepared by isostatic pressing and pressureless sintering. The density and sintering regulation were investigated. Results showed that with the increase of ZrB2 milling time, ZrB2 particles size was decreased and densities of the composites were increased. With the increase of SiC volume content, the density of the composites was decreased. The best milling time of ZrB2 was 6 hours and the best content of SiC was 20vol%. The density of ZrB2 +20vol %SiC composite is up to 4.98 g/cm3.
