| 溶胶-凝胶法合成β-SiC超细粉末 |
| SOL-GEL SYNTHESIS OF ULTRAFINE β-SiC POWDERS |
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| 摘要: 引言目前文献报道的溶胶法合成β-SiC超细粉末多以TEOS(Si(OC2H5)4)和/或PTES(C6H5Si(OC2H5)3)等有机硅和碳的化合物为原料,经溶胶-凝胶过程制SiC先驱体,然后在惰性气氛中热解合成.由于所用原料价格较贵,制备出的SiC粉末成本高,难以实现工业化生产.本文旨在探讨采用廉价硅源来制备β-SiC超细粉末的可行性,以加速我国SiC高技术材料的研究和应用. |
| 关键词: 溶胶-凝胶法 碳化硅 超细粉末 |
| 基金项目: |
| Abstract: Ultrafine β-SiC powders were synthesized from silica sol and carbonblack by sol-gel processing. The powders contained SiC up to 98wt%, showed spheric particles and narrow size distribution, has a mean size about 0.1 to 0.2μm and were not or soft agglomerates. The synthcsic conditions and properties of β-SiC powders were investigated. |
| Keywords: sol-gel SiC ultraflne powder |
| 投稿时间：1991-12-03 |
| 摘要点击次数: 1457 |
| 全文下载次数: 1739 |
| 肖汉宁,杜海清.溶胶-凝胶法合成β-SiC超细粉末[J].无机化学学报,1993,9(1):96-99. |
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