钙辅助溶胶-凝胶碳热还原法合成超细氮化铝粉体.pdf636 化工学报 V0163 No6 20126 CIESC Journal 钙辅助溶胶一凝胶碳热还原法合成 超细氮化铝粉体 杨清华,王焕平。张文娟,陈淑文,华有杰,王世峰,徐时清 泄屏垦г翰牧峡蒲в牍こ萄г海憬贾 a0 。结果 表明:钙助剂的添加,通过与前驱体中氧化铝在较低温度下发生反应,先后生成。。。、 ·和·。。。等铝酸钙相;上述铝酸钙相能在较低温度下形成液相,可有效促进氮化铝的合成和粉体 颗粒的生长。从而在。铣纱肯嗟;,在℃氮化得到了粒径~ 牡;练厶澹鲇猩倭柯了岣葡啻嬖趠当氮化温度上升至℃时,铝酸钙相因挥发而消失,得到粒 径的单相氮化铝粉体。 关键词;氮化铝;超细粉体;钙助剂;溶胶一凝胶;低温合成 痡.. O; 321 A文章编号:——— pound low temperature synthesis AIN uitrafine powders reduction nitride route 猤 precursor QinghuaWANGHuanpingZHANG 。 HUA 。 ShifengXUShiqing (School Materials Science and 珻 Jiliang , ,巧, AbstractAINultrafine powders synthesized a low temperature reduction nitride a 猤 precursor using 琯 and calcium nitrate raw 甌 influence pound the phase the 。 the and synthesized A1N powders investigatedX-raydiffraction — reacted alumina and aluminate CaAl4 07Ca3 珻 and 甌 aluminate phase the nitradation 瑆 the A12 A1N and vaporized a pared the without pound reduced the synthesis temperature A1N 1400*CSEMphotographs AIN powders synthesized — those without — additionand — led the A1N powdersWith[Ca][AI]of瑃 sizes AIN powders synthesized ℃~ nrn the nitradation temperature was increased ℃. 一—收到初稿,一—收到修改稿。:——. 联系人:徐时清。第一作者:杨清华,男。硬士研 Corresponding :. 畇. 究生。 corft 基金项目:浙江省自然科学基金项目;浙江省优 itemsupported the Natural Science 先主题重点工业项目。 Province(Ylll0648)and Key Pr