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plasma spray coating of mullite on silicon ceramics and method for their production
plasma spray coating of mullite on silicon ceramics and method for their production
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机译:硅陶瓷上莫来石的等离子喷涂涂层及其生产方法
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摘要
Coatings containing at least 85% by volume crystalline mullite with less than 15% by volume of amorphous material and mullite dissociation phases are plasma sprayed onto the surface of a silicon based ceramic substrate by closely controlling the plasma spray parameters including the mullite feed stock and its particle size, the nozzle outlet stand-off distance, movement of the substrate past the plasma flow, back side heating of the substrate and the powder feed rate through the plasma spray gun.
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