Articles
  • Synthesis and electrical conductivity of bulk tetra-valent cerium pyrophosphate 
  • Hiroaki Onodaa,*, Yousuke Inagakib, Akihide Kuwabarab, Naoto Kitamurac, Koji Amezawad, Atsushi Nakahirae and Isao Tanakab
  • a Department of Informatics and Environmental Sciences, Faculty of Life and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto 606-8522, Japan b Department of Materials Science and Engineering, Faculty of Engineering, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan c Department of Pure and Applied Chemistry, Faculty of Science & Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan d Department of Mechanical and Aerospace Engineering, Faculty of Engineering, Tohoku University, 6-6-01 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan e Department of Materials Science, Biomaterial Group, Faculty of Engineering, Osaka Prefecture University, Gakuencyo 1-1, Sakai 599-8531, Japan
Abstract
Tetra-valent cerium pyrophosphate was synthesized from cerium oxide and phosphoric acid by heating. The sintering processes, pressure-less sintering (PLS), spark plasma sintering (SPS), and hydrothermal hot pressing (HHP), were attempted to form bulk pyrophosphate. Furthermore, the electrical conductivity of bulk cerium pyrophosphate was investigated. Tetravalent cerium pyrophosphate was synthesized by heating at 700 degrees C for 20 hours. The hydrothermal hot pressing process was a suitable method to synthesize bulk tetra-valent cerium phosphate.

Keywords: Cerium phosphate; Spark plasma sintering; Hydrothermal hot pressing; Electric conductivity

This Article

  • 2010; 11(3): 344-347

    Published on Jun 30, 2010

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