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Pure-phase uranium-doped YAG powder with an U4+ oxidation state was synthesized by a co-precipitation method and calcined in reducing atmosphere. Divalent calcium ions were introduced to balance the extra charge from the substitution of uranium for yttrium. The optimized calcination condition, thermal behavior, phase formation process, and morphological characteristics of the powder were studied....
Cr:YAG and Yb/Cr:YAG transparent ceramics containing Ca as charge counter element were fabricated by vacuum sintering technique using the co-precipitation synthesis of raw powders. Their spectral and luminescence properties as well as the influence of Cr3+ concentration on the optical properties of Yb,Cr:YAG ceramic were investigated. Results show the transmittance of 10at.% Yb, 0.25at.% Cr:YAG and...
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