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Preparation of Boron Nitride Coating on Carbon Felt
Author(s): 
Pages: 79-81
Year: Issue:  6
Journal: Journal of Gansu Sciences

Keyword:  Boron nitrideCoatingCarbon felt;
Abstract: 为了提高碳毡的抗氧化性能,采用化学转化法在碳毡表面制备BN涂层.首先将碳毡浸渍在硼酸和尿素的混合溶液中,干燥后在N2气氛和不同温度下(800℃、900℃和1 000℃)热处理2h.利用红外光谱仪(IR)和扫描电镜(SEM)对BN涂层的成分和形貌进行分析,研究热处理温度对BN涂层结构的影响,得到制备BN涂层的最佳热处理温度.结果表明:浸涂了硼酸和尿素溶液的碳毡在N2气氛下于800℃热处理2h,可制得较为均匀的BN涂层.
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