Whitlockite coating constructed on surface of calcium phosphate-based bioceramic substrate and preparation method therefor
US11389564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/03
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method for constructing a whitlockite coating on a surface of a calcium phosphate-based bioceramic substrate and a resulting coating, wherein the preparation method includes the following steps of: preparing pure calcium phosphate-based bioceramic powder firstly, then pre-firing, shaping and calcining the pure calcium phosphate-based bioceramic powder to obtain a calcium phosphate-based bioceramic substrate, placing the substrate in a solution containing Mg2+, then transferring the substrate to a high-temperature high-pressure reaction kettle for a hydrothermal reaction, and then cleaning and drying the sample to obtain a whitlockite coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.