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X-ray diffraction of a sample after sintering at for 6 h in hydrogen indicating that the material is single phase pyrochlore. The inset is a TEM micrograph of the powder after calcining at but before sintering. The average particle size is .
Transparent pellets sintered under hydrogen atmosphere at for 6 h (polished, ).
Comparison of the spectral transmittance of 1 mm thick disks of and YAG transparent ceramics.
Emission at 1054.5 nm from a 1 mm thick transparent disk pumped with a 800 nm GaAlAs diode laser.
Characteristic features of Nd laser host materials.
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