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Proceedings Paper

Preparation of new PTCR material by particle electrification processing
Author(s): Norio Shinya; Takehiro Dan; Mitsuru Egashira; Junro Kyono; Hiroshi Fudouzi
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Paper Abstract

The purpose of the present work is to develop the materials with new functions by combining two kinds of particles electrified reciprocally. This paper reports a preparation method and the positive temperature coefficient of resistivity (PTCR) properties of complex particles consisting of semiconductive BaTiO3 granules and metallic indium powder particles. The conclusion obtained by the present experiment are as follows. (1) Vibrating cylindrical electrode can forced-electrify metal, semiconductor and insulator particles positively or negatively. (2) When the particles electrified reciprocally are mixed in the same region at the same time, complex particles can be created by the electrostatically attractive force working between the two kinds of particles. (3) Indium-semiconductive BaTiO3 complex particles made by this processing offer the new PTCR material which can be used in arbitrary shapes by filling and packing or drawing and painting.

Paper Details

Date Published: 14 February 1997
PDF: 10 pages
Proc. SPIE 3040, Smart Structures and Materials 1997: Smart Materials Technologies, (14 February 1997); doi: 10.1117/12.267130
Show Author Affiliations
Norio Shinya, National Research Institute for Metals (Japan)
Takehiro Dan, National Research Institute for Metals (Japan)
Mitsuru Egashira, National Research Institute for Metals (Japan)
Junro Kyono, National Research Institute for Metals (Japan)
Hiroshi Fudouzi, National Research Institute for Metals (Japan)

Published in SPIE Proceedings Vol. 3040:
Smart Structures and Materials 1997: Smart Materials Technologies
Wilbur C. Simmons; Ilhan A. Aksay; Dryver R. Huston, Editor(s)

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