Negative thermal expansion material, manufacturing method and composite material thereof
US11384024B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 14, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A negative thermal expansion material made of zirconium phosphate tungstate containing an Al atom, and having a thermal expansion coefficient of −2.0×10−6 to −3.3×10−6/K. According to the present invention, a negative thermal expansion material made of zirconium phosphate tungstate having various thermal expansion coefficients, and an industrially advantageous manufacturing method thereof can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.