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EP0040391A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ceramic PTC resistor material

Assignee: Siemens AG
•
Filing: 1981-05-12
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Granted: —
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Expires: 2001-05-12
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Abstract

Abstract Translated from German Keramisches Kaltleitermaterial (71) auf der Basis des Bariumtitanats, wobei das Material eine vergleichsweise zum Stand der Technik effektive Dotierung und grobes Korngefüge hat, sowie Verfahren zur Herstellung eines solchen Materials, in dem eine Phase (52) vorgesehen ist, in dem das Sintern und Abkühlen in reduzierender Atmosphaïe durchgeführt wird. Ceramic PTC thermistor material (71) based on the barium titanate, the material having a doping and coarse grain structure that is comparatively effective compared to the prior art, and method for producing such a material, in which a phase (52) is provided in which the sintering and Cooling is carried out in a reducing atmosphere.

Inventors

  • 👤 Leopold Dr. Hanke
  • 👤 Helmut Dr. Schmelz

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 02:52
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/02; H01C7/022; H01C7/023; H01C7/025; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; H01B; H01B1/00; H01B1/06; H01B1/08

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