| 高纯、细晶Al2O3陶瓷的Mo-Mn金属化机理研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 张巨先 石明 尚阿曼 |
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| 作者单位： | 北京真空电子技术研究所,北京100015;大功率微波电真空器件技术国防科技重点实验室,北京100015 |
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| 摘 要： | 通过对高纯、细晶Al2O3陶瓷金属化层、金属化层被酸腐蚀后的陶瓷表面显微结构及金属化层中元素在金属化层与陶瓷中的分布情况分析,探讨了高纯、细晶Al2O3陶瓷的Mo-Mn金属化机理。研究发现高纯、细晶Al2O3陶瓷的金属化机理与95%Al2O3陶瓷存在很大不同,高纯、细晶Al2O3陶瓷金属化时,Al2O3相通过溶解-沉淀传质过程,细小颗粒和固体颗粒表面凸起部分溶解,并在金属化层中的较大Al2O3颗粒表面析出。在Al2O3颗粒生长和形状改变的同时,金属化层形成致密结构,完成了烧结,实现了金属化层与高纯、细晶Al2O3陶瓷的紧密结合。
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| 关 键 词： | 高纯、细晶Al2O3陶瓷 Mo-Mn金属化 金属化机理 |
Investigation in Metallizing Mechanism of High Pure and Fine Grained Al2O3 Ceramic by Molybdenum-Manganese Process |
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| ZHANG Ju-xian,SHI Ming,SHANG A-man.Investigation in Metallizing Mechanism of High Pure and Fine Grained Al2O3 Ceramic by Molybdenum-Manganese Process[J].Vacuum Electronics,2011(4):19-22. |
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| Authors: | ZHANG Ju-xian SHI Ming SHANG A-man |
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| Affiliation: | ZHANG Ju-xian1,2,SHI Ming1,SHANG A-man1 (1.Beijing Vacuum Electronics Research Institute,Beijing 100015,China,2.Vacuum Electronics National Laboratory,China) |
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| Abstract: | The metallizing mechanism of high pure and fine grained Al2O3 ceramic by molybdenum-manganese process was discussed by observing the microstructure of metallized layer and the surface of Al2O3 ceramic which was eroded by HNO3 acid,and also by analyzing the element distribution in the metallized layer and Al2O3 ceramic.It was found that the metallizing mechanism of high pure and fine grained Al2O3 ceramic by molybdenum-manganese process was quite different from that of 95% Al2O3 ceramic.During the metallizat... |
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| Keywords: | High pure and fine grained Al2O3 ceramics Molybdenum-manganese process Metallizing mechanisms |
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