Heat resisting member and its production method
US5955182A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Feb 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat resisting member having ceramics heat shield layers which is directly formed on a metal base material or formed on it via a metal bonded layer formed on the metal base material. The ceramics heat shield layers comprise a first ceramics layer which is formed on the metal base material or the metal bonded layer and has a high elastic modulus, high hardness and high density, and a second ceramics layer which is formed on the first ceramics layer and has a low elastic modulus, low hardness and low density. Delamination from the neighborhood of the interface or oxidation of the lower layer can be prevented by the first ceramics layer which is formed on the metal base material or the metal bonded layer. Thermal shock resistance and heat shielding effect of the ceramics heat shield layers as the whole can be enhanced by the second ceramics layer. And, if necessary, a third ceramics layer having a high elastic modulus, high hardness and high density may be formed on the second ceramics layer in order to improve the abrasion resistance and the resistance against a damage due to flying substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.