Method for producing high density indium-tin-oxide sintered body
US6500225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/453
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing an indium-tin-oxide sintered body comprising the steps of;molding a powder comprising indium, tin and oxygen, andsintering the molded article in oxygen gas-containing atmosphere,wherein the halogen content of the powder comprising indium, tin and oxygen is 0.02% by weight or less, the concentration of oxygen in the oxygen gas-containing atmosphere is 90% or more during the sintering, the partial pressure of moisture contained in the oxygen gas-containing atmosphere is 800 Pa or less during the sintering, and the molded article is maintained at a temperature in the range from 1500 to 1650° C. for 1 hour or more for the sintering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.