摘要
研究了磁控溅射 ＮｉＡｌ 微晶涂层对ＮｉＡｌ－ＴｉＣ（２０％，体积分数）复合材料１０００－１１００℃高温氧化性能的影响．结果表明，ＮｉＡｌ微晶涂层大大提高了ＮｉＡｌ－ＴｉＣ复合材料的恒温及循环氧化性能，降低氧化速率几个数量级，对于 ＮｉＡｌ－ＴｉＣ复合材料来说，其表面形成以ＴｉＯ２为主的复合氧化物，而施加 ＮｉＡｌ微晶涂层后，其表面氧化物主要是 Ａｌ２Ｏ３．
The effect of NiAl mocrocrystalline coating prepared by magnetron-sputtering on the high temperature oxidation behaviors of NiAI-TiC (20%, volume fraction) composite was investigated in air at 1000 and 1100℃. It was found that the isothermal as well as cyclic oxidation resistance of NiAl-TiC composite was greatly improved by NiAl microcrystalline coating. The chide scale of NiAl- TiC composite is mainly composed of TiO2. While, the scale for that coated with NiAI microcrystalline coating is only Al2O3.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第9期985-989,共5页
Acta Metallurgica Sinica
基金
国家杰出青年基金!59625103
863项目!715-011-012
