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公开(公告)号:US20050026770A1
公开(公告)日:2005-02-03
申请号:US10928496
申请日:2004-08-27
申请人: Dongming Zhu , Robert Miller
发明人: Dongming Zhu , Robert Miller
IPC分类号: C04B35/48 , C04B35/486 , C23C4/10 , C23C14/08 , C23C30/00
CPC分类号: C04B35/486 , C04B2235/3206 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3241 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3289 , C23C4/11 , C23C14/08 , C23C28/321 , C23C28/3215 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , F05D2300/134 , F05D2300/5024 , F05D2300/611 , Y02T50/67 , Y02T50/671 , Y10T428/12611 , Y10T428/12618
摘要: A thermal barrier coating composition is provided. The composition has a base oxide, a primary stabilizer, and at least two additional cationic oxide dopants. Preferably, a pair of group A and group B defect cluster-promoting oxides is used in conjunction with the base and primary stabilizer oxides. The new thermal barrier coating is found to have significantly lower thermal conductivity and better sintering resistance. In preferred embodiments, the base oxide is selected from zirconia and hafnia. The group A and group B cluster-promoting oxide dopants preferably are selected such that the group A dopant has a smaller cationic radius than the primary stabilizer oxide, and so that the primary stabilizer oxide has a small cationic radius than that of the group B dopant.
摘要翻译: 提供了一种隔热涂料组合物。 该组合物具有基础氧化物,主要稳定剂和至少两种另外的阳离子氧化物掺杂剂。 优选地,一对A组和B组缺陷促进簇的氧化物与碱和一级稳定剂氧化物结合使用。 发现新的热障涂层具有显着较低的导热性和更好的耐烧结性。 在优选的实施方案中,碱性氧化物选自氧化锆和氢氧化铪。 优选选择A组和B组促进簇的氧化物掺杂剂,使得A族掺杂剂的阳离子半径比主要稳定剂氧化物小,因此主要稳定剂氧化物的阳离子半径比B族掺杂剂的阳离子半径小 。