Transparent ceramics and production process for the same
AssigneeCommissariat a l'Energie Atomique
InventorsJean-Francois Baumard, Marcel Boncoeur, Gilles Gasgnier, Louis Minjolle
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Abstract
The present invention relates to a ceramic based on yttrium oxide and titanium oxide. This ceramic has a light transmission percentage of at least 20% in a wavelength range between 0.5 and 8 .mu.m. It also relates to a sintering process for obtaining said ceramic.
Claims15
A ceramic consisting essentially of yttrium oxide and from about 0.01 to 2% by weight of titanium oxide, having a light transmission percentage of at least 20% in the wavelength range between 0.5 and 8 .mu.m.
A process for producing a ceramic consisting essentially of yttrium oxide and from about 0.01 to 2% by weight of titanium oxide, having a light transmission percentage of at least 20% in the wavelength range between 0.5 and 8 .mu.m, comprising mixing the yttrium oxide and at least one titanium oxide, drying the mixture obtained and heat treating it wherein mixture is heated to a temperature between 1300.degree.-1800.degree. C. and, wherein said heat treatment is performed under an atmosphere containing at least 99% by volume of oxygen.
Dependencies are inferred from the claim text.