Optical Ceramics

Optical Ceramics

During the preparation of transparent alumina ceramic, the use of high-purity alumina powder(zirconium carbide powder)  as raw material, and add the appropriate sintering aids, placed 2.45GHz, 1.5kW single-mode cavity, a heating rate of 150 ℃ / min, in 1700 under ℃, sintering lOmin can get dense and transparent Al2O3. If appropriate to extend the baking time, in other conditions remain unchanged, the higher A120, transparency. Without adding any sintering aids premise micron with high purity aluminum nitride (AlN) powder at 1700 ℃ / 2h low temperature microwave sintering process conditions for preparing a higher transparency transparent AlN ceramics. The transparent ceramic grain size small (< 10um), complete and uniform grain growth, grain boundary straight and smooth and there is no second phase distribution.

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