- 专利标题： Hafnon and zircon environmental barrier coatings for silicon-based components
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申请号： US17401545申请日： 2021-08-13
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公开(公告)号： US11866379B2公开(公告)日： 2024-01-09
- 发明人: Xuan Liu , James T. Beals , Xia Tang , Richard Wesley Jackson , William J. Joost
- 申请人： Raytheon Technologies Corporation
- 申请人地址： US CT Farmington
- 专利权人： RTX Corporation
- 当前专利权人： RTX Corporation
- 当前专利权人地址： US CT Farmington
- 代理机构： Bachman & LaPointe, P.C.
- 主分类号： C04B41/51
- IPC分类号： C04B41/51 ; C04B41/45 ; C04B35/78 ; C04B41/50 ; C04B41/52 ; C04B41/90
摘要：
A method for coating a substrate includes spraying a combination of powders. The combination of powders includes: Hf0.5Si0.5O2; Zr0.5Si0.5O2; and, optionally, at least one of HfO2 and ZrO2. A molar ratio of said Hf0.5Si0.5O2 and HfO2 combined to said Zr0.5Si0.5O2 and ZrO2 combined is from 2:1 to 4:1. A molar ratio of said Hf0.5Si0.5O2 to said HfO2 is at least 1:3.
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