摘要
研究了表面涂覆草酸钇薄膜对氮化铝（ＡｌＮ）粉耐水性的影响。结果显示：涂膜后ＡｌＮ粉在１００℃沸水中回流４５ｍｉｎ不与水反应，温度降至７８℃时可耐水３ｈ以上；耐水时间随涂覆量增加而增加，随温度升高而下降。水分子通过薄膜的扩散过程是影响ＡｌＮ耐水性的决定因素。用Ｘ光电子能谱（ＸＰＳ）和红外光谱测定了表面草酸钇与ＡｌＮ界面形成的化学键。
The effect of yttrium oxalate film on the hydrolysis resistance of aluminum nitride powder was studied. The coated film improved the powder's ability of water corrosion, and the coated powder not react with water at 100℃ for 45 minutes and 78℃ for over 3 hours. The resistance time to hydrolysis was increased with an increase of the film content, but decreased with temperature, which was governed by water diffusion through the film. XPS and IR showed that chemical bonds were formed at the interface of AlN/Y2(C2O4)3.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第4期458-461,共4页
Journal of East China University of Science and Technology
关键词
氮化铝
薄膜
耐水性
草酸钇
陶瓷
aluminum nitride
powder
hydrolysis resistance
film
mechanics
yttrium oxalate
