真空电子技术Issue(4)：19-22,4.
高纯、细晶Al2O3陶瓷的Mo-Mn金属化机理研究
Investigation in Metallizing Mechanism of High Pure and Fine Grained Al2O3 Ceramic by Molybdenum-Manganese Process
张巨先 1石明 2尚阿曼1
作者信息
- 1. 北京真空电子技术研究所,北京100015
- 2. 大功率微波电真空器件技术国防科技重点实验室,北京100015
- 折叠
摘要
Abstract
manganese process was discussed by observing the microstructure of metallized layer and the surface of A12O3 ceramic which was eroded by HNO3 acid, and also by analyzing the element distribution in the metallized layer and Al2 O3 ceramic. It was found that the metallizing mechanism of high pure and fine grained A12O3 ceramic by molybdenum-manganese process was quite different from that of 95% A12O3 ceramic. During the metallization process of high pure and fine grained A12O3 ceramic, the fine A12O3 grains and the bulge of A12O3 grains on the surfaces of the ceramics were dissolved into the glass phase and subsequently deposited on the surface of large A12O3 particles in the metallized layers. So the A12O3 grains grew up and its shape changed. At the same time, the metallized layers became dense and the sintering process of metallized layers was finished. The strong bonding of metallized layer and high pure and fine grained A12O3 ceramic was achieved.关键词
高纯、细晶Al2O3陶瓷/Mo-Mn金属化/金属化机理Key words
High pure and fine grained A12O3 ceramics, Molybdenum-manganese process, Metallizing分类
通用工业技术引用本文复制引用
张巨先,石明,尚阿曼..高纯、细晶Al2O3陶瓷的Mo-Mn金属化机理研究[J].真空电子技术,2011,(4):19-22,4.
