摘要
研究了 Si2 ON2 / L AS纳米复合材料的制备和性能。结果表明 ,纳米β- Si3N4可在较低温度下与玻璃热压烧结制备出 Si2 ON2 / L AS纳米复合材料。材料的力学性能与生成的纳米 Si2 ON2 含量有关。Si2 ON2 的含量在 2 0 %时材料的抗弯强度和断裂韧性达最高值 ,分别比未加 Si2 ON2 的材料提高 31%和 88%。纳米 Si2 ON2 的含量超过 2 0 %时 ,材料的力学性能急剧下降 。
WT5BZ]Preparetion and properties of Si 2ON 2/LAS nano composite were investigated The results show that the Si 2ON 2/LAS nano composite can be formed from nano β Si 3N 4 and LAS glass powder in hot pressing conditions The nano Si 2ON 2 in the composite is club like The optimum content of nano Si 2ON 2 is 20 wt% Compared with pure LAS glass ceramic, the strength and fracture toughness of the composite are increased by a factor of 31% and 88%, respectively The strength and fracture toughness are decreased rapidly when the amount of nano Si 2ON 2 is over 20wt% This decrease is caused by the decrease in the density of the composite
出处
《材料工程》
EI
CAS
CSCD
北大核心
2001年第7期22-24,共3页
Journal of Materials Engineering
