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TRANSPARENT METAL FLUORIDE CERAMIC
A method for producing a metal fluoride ceramic, comprising: providing a sedimented compound comprising metal fluoride particles having an average particle size lower than 30 nm and a solvent, partially drying the sedimented compound at a temperature lower than 65°C until the partially dried compound comprises from 5 wt% to 45 wt% of the solvent, and sintering, for example in air, the partially dried and sedimented compound. The resulting ceramic is a transparent metal fluoride ceramic having an average grain size lower than 450 nm and having an absorbance lower than 0.05 cm -1 at 1200 nm and lower than 1 cm -1 at 370 nm. Preferably calcium fluoride is used.
TRANSPARENT METAL FLUORIDE CERAMIC
A method for producing a metal fluoride ceramic, comprising: providing a sedimented compound comprising metal fluoride particles having an average particle size lower than 30 nm and a solvent, partially drying the sedimented compound at a temperature lower than 65°C until the partially dried compound comprises from 5 wt% to 45 wt% of the solvent, and sintering, for example in air, the partially dried and sedimented compound. The resulting ceramic is a transparent metal fluoride ceramic having an average grain size lower than 450 nm and having an absorbance lower than 0.05 cm -1 at 1200 nm and lower than 1 cm -1 at 370 nm. Preferably calcium fluoride is used.
TRANSPARENT METAL FLUORIDE CERAMIC
TRANSPARENTE METALLFLUORIDKERAMIK
CÉRAMIQUE DE FLUORURE MÉTALLIQUE TRANSPARENT
MORTIER MICHEL (author) / ABALLEA PIERRE (author) / GREDIN PATRICK (author) / SUGANUMA AKIKO (author)
2019-11-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Calcium fluoride transparent ceramic and low-temperature preparation method
| European Patent Office | 2022