Joining nitride ceramics
Joining nitride ceramics
复制标题
氮化物陶瓷的接合
DOI：
10.1016/0272-8842(95)00134-4
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发表时间：
1996
影响因子：
5.2
通讯作者：
S. Peteves
中科院分区：
文献类型：
--
作者：
S. Peteves
氮化物陶瓷在先进技术应用中正变得越来越重要。例如，Si3N4的高温发动机部件，AlN的散热电子基板，以及立方氮化硼的化学惰性刀具。然而，氮陶瓷在这些和其他应用中的有效和广泛使用，取决于它们与金属以及其他陶瓷结合的能力。由于陶瓷的非金属特性，陶瓷与金属的粘接本身就很困难，对于氮化物陶瓷来说，由于其在真空中容易解离，这一点可能会加剧。讨论了用活性钎料进行扩散连接和钎焊，成功地生产出可靠的高强度接头。介绍了用含反应元素的合金连接AlN、BN，特别是Si3N4的方法，并讨论了温度、环境和陶瓷表面处理等工艺参数对界面组织、力学性能和高温稳定性的影响。
Nitride ceramics are gaining importance in advanced technology applications. Examples include high temperature engine components of Si3N4, heat dissipating electronic substrates of AlN, and chemically inert cutting tools of cubic BN. The effective and widespread use of nitrogen ceramics in these and other applications, however, depends on the ability to bond them to metals, as well as to other ceramics. Bonding ceramics to metals is inherently difficult because of their non-metallic characteristics, and this can be aggravated for nitride ceramics by their tendency to dissociate in vacua. The successful production of reliably strong joints by diffusion bonding and brazing with reactive filler metals is discussed. Reference will be made to the joining of AlN, BN and particularly Si3N4using alloys containing reactive elements, and comments will be made on the influence of process and parameters such as temperature, environment and ceramic surface preparation on the microstructure, mechanical properties and high temperature stability of interfaces.