Thermal spraying powder
US7279221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2006 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Feb 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermal spraying powder includes granulated and sintered particles of an yttrium-aluminum double oxide obtained by granulating and sintering a raw powder containing yttrium and aluminum. The total volume of fine pores having a diameter of 6 μm or less in one gram of the granulated and sintered particles is 0.06 to 0.25 cm3. The thermal spraying powder reliably forms a thermal spray coating that is suitable for use where the thermal spray coating is subjected to a thermal shock in a corrosive atmosphere or an oxidative atmosphere and for use where the thermal spray coating is subjected to a thermal shock in a state where the thermal spray coating contacts a member that has reactivity to a base material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.