喷涂氧化铝粉体及其在等离子射流下的变化  

Alumina Powder for Sputtering and It's Change in Plasma Jet

作　　者：罗玉长[1] 

机构地区：[1]山东铝业公司研究院,山东淄博255061

出　　处：《中国粉体技术》2002年第2期10-12,共3页China Powder Science and Technology

摘　　要：用烧结法生产喷涂氧化铝。实验采用水冷非转移式等离子喷枪 ,工作气体为N2 、H2 ,其纯度 99.9%。稳定相α-Al2 O3经等离子射流熔融、淬冷后 ,转变为亚稳相γ -Al2 O3及球化低钠氧化铝 ,经试验确定 ,Al2 O3的相变历程如下 :α -Al2 O3等离子射流 熔体 淬冷 γ -Al2 O380 0℃ ε -Al2 O3110 0℃ α -Al2The alumina for sputtering was produced with sintering process.The water cooling non transference type spray gun was used,working gases were N 2,H 2,their purity was 99.9%.After melted by the plasma jet and quenched,the stabilizing phase of α-Al 2O 3 is transformed to sub stabilizing phase γ-Al 2O 3 and spherical low sodium alumina.The tests show that the procedure of the phase transformation is as following: α-Al 2O 3plasma jetmelted bodyquenchingγ-Al 2O 3800℃ε-Al 2O 31100℃α-Al 2O 3

关 键 词：喷涂 无机涂料 碱石灰 氧化铝粉体 等离子体 相变 烧结 

分 类 号：TQ630.1[化学工程—精细化工]