Method of producing apatite crystal, and apatite crystal
US10851472B2 · kind B2 · utility
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Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jun 14, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of producing an apatite crystal includes the steps of preparing an apatite single crystal expressed by the general formula M25(PO4)3X (M2 being at least atomic element selected from the group consisting of divalent alkaline-earth metals and Eu, and X is at least one atomic selected from the group consisting of halogens); placing the apatite single crystal into a space controllable to a predetermined atmosphere; supplying water vapor into the space; and heating such that the atmosphere in the space is within a 1000° C. to 1400° C. range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.