首页>
外国专利>
Protective ceramic coatings applied by plasma spraying - where titanium nitride, zirconium boride or chromic oxide is sprayed onto ceramic substrates
Protective ceramic coatings applied by plasma spraying - where titanium nitride, zirconium boride or chromic oxide is sprayed onto ceramic substrates
展开▼
机译：通过等离子喷涂施加的保护性陶瓷涂层-将氮化钛，硼化锆或氧化铬喷涂到陶瓷基材上
展开▼
页面导航
摘要
著录项
相似文献
摘要
The fine coatings consist of TiN, ZrB2, or Cr2O3, applied to high grade ceramic parts, pref. parts contg. ca. 90% alumina. The parts are used esp. in the metallurgical industry in applications involving high thermo-mechanical stress, and erosion and corrosion at high temps., e.g. nozzles used in continuous casting, or stopper parts. The parts are pref. heated before being coated, and the coated parts are cooled slowly so no cracks occur. A pref. alternative is to coat the parts or substrates with a thin layer of Si, followed by nitriding to form Si3N4, and repeating this process. The Si powder used in this process pref. contains a catalyst, esp. iron. The coatings possess high resistance to molten metals and molten slags, so the parts have long working lives.
展开▼
