Microstructure and Properties of Plasma Ceramics
Microstructure and Properties of Plasma Ceramics
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等离子陶瓷的微观结构与性能
DOI：
10.1111/j.1151-2916.1994.tb05402.x
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
E. Lutz
中科院分区：
文献类型：
--
作者：
E. Lutz
等离子喷涂，最初是一种用于金属和非金属基材的陶瓷涂层的表面处理技术，适用于原位生产大的全陶瓷体，例如板和管，几乎达到所需的尺寸;即，不需要通过模制和铸造绿色体然后烧结来设计的常规方法。这些“等离子体陶瓷”表现出特有的机械和热机械性能。它们的多孔层状晶粒结构导致低的E模量和强度，以及极高的抗热震性，这是由材料的极高的抗断裂性增强的。由于这些特性和它们的低硬度，等离子陶瓷可以很容易地用几乎传统的金属加工方法加工。
Plasma spraying, originally a surfacing technology used for ceramic coating of metal and nonmetal substrates, is suitable for producing large, full ceramic bodies, such as plates and tubes, in situ to almost the desired dimensions; i.e., conventional methods of designing by molding and casting green bodies followed by sintering are not required. These “plasma ceramics” exhibit characteristic mechanical and thermomechanical properties. Their porous laminar grain structure results in low E-modulus and strength, and in extreme thermal shock resistance, which is enhanced by the comparably high fracture resistance of the material. Because of these properties and their low hardness, plasma ceramics can be easily machined with almost conventional methods of metal processing.