Fabrication of Transparent Pb ( Mg 1/3 Nb 2/3 ) O 3 – PbTiO 3 Based Ceramics by Conventional Sintering
Ichiro FujiiRyoichi YoshidaTakahito ImaiSeiji YamazoeTakahiro Wada
Abstract
Transparent 0.9 Pb ( Mg 1/3 Nb 2/3 ) O 3 –0.1 PbTiO 3 ( PMN ‐ PT ) based ceramics were prepared by a conventional solid‐state synthesis without using a hot‐press method. The ceramics became transparent when they were sintered in an O 2 atmosphere. The optical transmission increased with decreasing diameter of the calcined powder, which was controlled by the size of zirconia ball‐milling media. Substitution of 3 mol% La for Pb in PMN ‐ PT further increased the optical transmission to 68% at the wavelength of 2000 nm, which was comparable to that of hot‐pressed Pb ( Mg 1/3 Nb 2/3 ) O 3 ‐ PbTiO 3 based transparent ceramics.
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