发明名称 |
CERAMIC WITH OXIDISABLE LAYER |
摘要 |
An article comprises a silicon-containing substrate and an external environmental/thermal barrier coating. The external environment/thermal barrier coating is permeable to diffusion of an environmental oxidant and the silicon-containing substrate is oxidizable by reaction with oxidant to form at least one gaseous product. The article comprises an intermediate layer/coating between the silicon-containing substrate and the environmental/thermal barrier coating that is oxidizable to a nongaseous product by reaction with the oxidant in preference to reaction of the silicon-containing substrate with the oxidant. A method of forming an article, comprises forming a silicon-based substrate that is oxidizable by reaction with oxidant to at least one gaseous product and applying an intermediate layer/coating onto the substrate, wherein the intermediate layer/coating is oxidizable to a nongaseous product by reaction with the oxidant in preference to reaction of the silicon-containing substrate with the oxidant. |
申请公布号 |
WO9958472(A3) |
申请公布日期 |
2000.03.16 |
申请号 |
WO1999US09035 |
申请日期 |
1999.04.27 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
WANG, HONGYU;LUTHRA, KRISHAN, LAL |
分类号 |
C04B35/573;C04B41/52;C04B41/87;C04B41/89 |
主分类号 |
C04B35/573 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|