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公开(公告)号:US06682821B2
公开(公告)日:2004-01-27
申请号:US10330023
申请日:2002-12-26
申请人: Takero Fukudome , Sazo Tsurudono , Tohru Hisamatsu , Isao Yuri
发明人: Takero Fukudome , Sazo Tsurudono , Tohru Hisamatsu , Isao Yuri
IPC分类号: B32B1800
CPC分类号: C04B41/009 , C04B35/486 , C04B35/565 , C04B35/584 , C04B35/597 , C04B35/6263 , C04B41/5042 , C04B41/52 , C04B41/87 , C04B41/89 , C04B2111/105 , C04B2111/1056 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3289 , C04B2235/3418 , C04B2235/3821 , C04B2235/422 , C04B2235/656 , C04B2235/6567 , C04B2235/72 , C04B2235/9669 , C04B2235/9684 , F01D5/284 , Y10T428/249967 , Y10T428/249969 , C04B41/4539 , C04B41/4582 , C04B41/5045 , C04B41/4529 , C04B41/5024 , C04B41/5035 , C04B41/522
摘要: Anti-corrosion ceramics comprising a substrate of at least one kind of silicon-containing ceramics selected from a silicon nitride, a silicon carbide and Sialon, and a surface protection layer formed on the surface of the substrate, wherein the surface protection layer comprises a zirconium oxide stabilized with an element of the Group IIIa of periodic table, and the total amount of Al and Si in the surface protection layer is suppressed to be not larger than 1% by mass. Particularly, the surface layer has a thickness of from 5 to 200 &mgr;m and a porosity of 5 to 30%. The anti-corrosion ceramics exhibits a high resistance against the corrosion due to the water vapor of high temperatures in a region of not lower than 1000° C., and can be preferably used as parts of internal combustion engines such as parts of gas turbine engines, like a turbine rotor, nozzles, a combustor liner and a transition duct.
摘要翻译: 包括选自氮化硅,碳化硅和赛隆的至少一种含硅陶瓷的衬底和形成在衬底的表面上的表面保护层的抗腐蚀陶瓷,其中所述表面保护层包括锆 用元素周期表IIIa族元素稳定的氧化物,并且将表面保护层中的Al和Si的总量抑制在不大于1质量%。 特别地,表面层的厚度为5〜200μm,孔隙率为5〜30%。 耐腐蚀性陶瓷在不低于1000℃的区域中表现出高温度下的水蒸气的高耐腐蚀性,并且可优选用作内燃机的部件,例如燃气涡轮发动机的部件 ,如涡轮转子,喷嘴,燃烧器衬套和过渡管。