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Hao Sue, Wei Yongde. Preparation and Electric Characteristics of Nd-Penetrating PbTiO3 Ceramics[J]. Development and Application of Materials, 2003, 18(3): 1-3. DOI: 10.19515/j.cnki.1003-1545.2003.03.001
Citation: Hao Sue, Wei Yongde. Preparation and Electric Characteristics of Nd-Penetrating PbTiO3 Ceramics[J]. Development and Application of Materials, 2003, 18(3): 1-3. DOI: 10.19515/j.cnki.1003-1545.2003.03.001
shu

Preparation and Electric Characteristics of Nd-Penetrating PbTiO3 Ceramics

  • Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: November 21, 2002
  • Available Online: June 14, 2024
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    • Abstract
  • A new method for preparing rare earth modified PbTiO 3 ceramics is introduced in which the penetration of Nd element in gas phase to PbTiO 3 ceramics is accomplished. The conditions and effect of the penetration on electric characteristics of PbTiO 3 ceramics are investigated through orthogonal experiment. The results show that on condition of Nd element content 1.5%(wt), penetrating time 4h and penetrating temperature 860℃, the resistivity of the ceramics decreases from2.0×1010 Ω·m to 10.5 Ω·m, grain resistance exhibits PTC response, but grain boundary resistance decreases severely as the temperature rising, and that the response of total resistance is similar to that of grain boundary resistance with the PTC phenomenon disappeared, and the Nd penetrating PbTiO 3 ceramics reaching conductor.
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