炭毡/炭复合材料的氧化防护  

OXIDATION PROTECTION OF CARBON FELT/CARBON COMPOSITES

作　　者：郭伟明[1] 肖汉宁[1] 聂昆[1] 

机构地区：[1]湖南大学 材料科学与工程学院,长沙410082

出　　处：《炭素》2007年第3期29-32,共4页Carbon

摘　　要：以磷酸和氢氧化铝为原料,配制了不同P/Al摩尔比的酸式磷酸盐溶液,通过浸渍法,对炭毡/炭复合材料的氧化防护进行了研究。结果表明,提高P/Al摩尔比可以增加材料抗氧化性。经P/Al摩尔比23:1的溶液浸渍,800□热处理后的炭毡/炭复合材料在600□下氧化几乎没有失重。Oxidation resistance of carbon felt/carbon composites was investigated by acid phosphate impregnation with different P/Al molar ratios. The acid phosphate solution was prepared by phosphoric acid and aluminum hydroxide. The results show that the impregnation with higher P/Al molar ratio is more effective for improving the oxidation resistance of the composites. When P/Al molar ration is 23,after the heat treatment at 800℃. the weight of carbon felt/carbon composites oxidized at 600℃ is almost in constant.

关 键 词：炭毡/炭复合材料 抗氧化 浸溃 P/Al摩尔 

分 类 号：TQ165[化学工程—高温制品工业]