Fabrication of transparent Lu3NbO7 by spark plasma sintering

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Abstract We demonstrated the first successful fabrication of a transparent Lu 3 NbO 7 body by spark plasma sintering (SPS). First, Lu 3 NbO 7 powder was synthesized by a solid-state reaction of Lu 2 O 3 and Nb 2 O 5 powders at 1473 K for 7.2 ks and was sintered by SPS at 1723 K for 2.7 ks. The transparent Lu 3 NbO 7 body had a cubic defect-fluorite structure and uniform microstructure with an average grain size of 0.77 μm. The transmittance at 550 nm reached 68%.

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