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EP0263427A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Metal-ceramic composite material and process for its manufacture

Assignee: UFEC-Universal Fusion Energie Co SA
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Filing: 1987-09-30
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Granted: —
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Expires: 2007-09-30
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Abstract

Abstract Translated from French La présente invention concerne un matériau composite céramo-métallique comportant une première phase, consistant essentiellement en particules d'oxyde d'aluminium, ou d'une solution solide à base d'oxyde d'aluminium, et répartie uniformément dans une seconde phase matrice. Cette matrice consiste essentiellement en un premier métal et en carbure de titane et n'est pas réactive avec l'oxyde d'aluminium. La quantité de carbure de titane présente à l'interface entre la première et la seconde phase est telle qu'elle empéche la réaction chimique entre ces phases à la température du frittage. Ce matériau composite peut être préparé par frittage des différents constituants, à 1300 - 1600°C et en maintenant les pressions partielles du CO formé entre 1,33.10⁻² et 1,33.10⁻¹ Pa. The present invention relates to a ceramic-metallic composite material comprising a first phase, consisting essentially of aluminum oxide particles, or of a solid solution based on aluminum oxide, and distributed uniformly in a second matrix phase. This matrix consists essentially of a first metal and of titanium carbide and is not reactive with aluminum oxide. The amount of titanium carbide present at the interface between the first and the second phase is such that it prevents the chemical reaction between these phases at the sintering temperature. This composite material can be prepared by sintering the different constituents, at 1300 - 1600 ° C and maintaining the partial pressures of the CO formed between 1.33.10⁻² and 1.33.10⁻¹ Pa.

Inventors

  • 👤 Bruce M. Kramer
  • 👤 David M. Dombrowski
  • 👤 Denis Gonseth
  • 👤 Minyang Yang
  • 👤 Stephen P. Kohler

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 04:30
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/12; B; B22; B22F; B22F1/00; B22F1/18; C22C19/00; C22C33/00; C22C33/02; C22C47/00; C22C47/02; C22C47/04; C22C49/00; C22C49/02; C22C49/08; C22C49/14

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