发明名称 |
Method of removing ceramic coatings |
摘要 |
A method of removing a ceramic coating (18), and particularly zirconia-containing thermal barrier coating (TBC) materials such as yttria-stabilized zirconia (YSZ), that has been either intentionally or unintentionally deposited on the surface of a component (10). The method entails subjecting the ceramic coating (18) to an aqueous solution containing an acid fluoride salt, such as ammonium bifluoride (NH4HF2) or sodium bifluoride (NaHF2), and a corrosion inhibitor. The method is capable of completely removing the ceramic coating (18) without removing or damaging the underlying substrate material, which may include a metallic bond coat (16).
|
申请公布号 |
US6379749(B2) |
申请公布日期 |
2002.04.30 |
申请号 |
US20000730373 |
申请日期 |
2000.12.05 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
ZIMMERMAN, JR. ROBERT GEORGE;BROOKS WILLIAM CLARKE;WUSTMAN ROGER DALE;EVANS, SR. JOHN DOUGLAS |
分类号 |
F01D5/28;C23C4/02;C23C4/10;C23C30/00;C23G1/10;F02C7/00;(IPC1-7):B05D3/10;C23G1/00 |
主分类号 |
F01D5/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|