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发明公开
CN1215039A 自愈合抗氧化陶瓷/碳素复合材料 无效 - 撤回

自愈合抗氧化陶瓷/碳素复合材料
摘要：
一种自愈合抗氧化陶瓷/碳素复合材料,由50～80%的焦粉、20～50%的SiC和B4C粉压力成型烧结复合而成,其中B4C:SiC在0.2～0.8之间,其特征在于:SiC粉用纳米SiC和/或Si3N4粉替代,替代量占SiC加入量的30～100%。或者将SiC和B4C粉用机械合金化的Si/C/B复合粉替代,替代量占SiC和B4C粉总量的15～25%。本发明具有优良的高温抗氧化性能,且成本较低。
摘要（英）：

The present invention relates to a self-coalescence antioxidative ceramic/carbon composite material with excellent high-temp. resistance to oxidation and low cost. It is made up by using 50-80% of coke powder and 20-50% of SiC and B4C powder through the process of pressure-moulding and sintering-compounding, in which B4C : SiC is 0.2-0.8. It is characterized by substituting SiC powder by nanometer SiC and/or Si3N4 powder, substituted amount is 30-100% of added amount of SiC or by Si/C/B composite powder obtained by using SiC and B4C powders through mechanical alloying process, its substitutedamount is 15-25% of total SiC and B4C amount.

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