Title:
SEMICONDUCTOR CERAMIC
Document Type and Number:
WIPO Patent Application WO/2010/015789
Kind Code:
A3
Abstract:
The present invention relates to a process for fabricating a semiconductor ceramic comprising 10 to 30% by volume of a conducting phase based on MoSi2 particles and 70 to 90% by volume of a particulate insulating phase, the size of MoSi2 particles being between 15 nm and 5 µm and the distance between two adjacent MoSi2 particles being between 0.1 and 6 µm, the process comprising: (1) preparation of a uniform suspension of a conducting phase based on MoSi2 particles in order to obtain a first slip; (2) preparation of a uniform suspension of a particulate insulating phase, in order to obtain a second slip; (3) mixing of the first and second slips, in order to obtain a mixture of the two phases in the desired proportions; (4) drying and screening of the composition; and (5) sintering of the composition. The invention also relates to the semiconductor ceramic obtained by this process.
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Inventors:
DRAZENOVIC BEATRICE (FR)
Application Number:
PCT/FR2009/051573
Publication Date:
April 01, 2010
Filing Date:
August 07, 2009
Export Citation:
Assignee:
DRAZENOVIC BEATRICE (FR)
International Classes:
C04B35/117; C04B35/185; C04B35/581; C04B35/587; C04B35/596; H01T13/00; H01T13/20; H01T13/38
Domestic Patent References:
| WO1997034444A1 | 1997-09-18 |
Foreign References:
| EP0180928A2 | 1986-05-14 | |||
| US5085804A | 1992-02-04 |
Other References:
KIMURA I ET AL: "Sintering and characterization of Al2O3-TiB2 composites", JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, ELSEVIER SCIENCE PUBLISHERS, BARKING, ESSEX, GB, vol. 5, no. 1, 1 January 1989 (1989-01-01), pages 23 - 27, XP024175182, ISSN: 0955-2219, [retrieved on 19890101]
STADLBAUER W ET AL: "AL2O3-TIB2 COMPOSITE CERAMICS", JOURNAL OF MATERIALS SCIENCE LETTERS, CHAPMAN AND HALL LTD. LONDON, GB, vol. 8, no. 10, 1 October 1989 (1989-10-01), pages 1217 - 1220, XP000083887, ISSN: 0261-8028
MATSUSHITA J-I ET AL: "Pressureless sintering of TiB2Al2O3", NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU ROMBUSHI - JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, NIPPON SERAMIKKUSU KYOKAI, TOKYO, JP, vol. 97, no. 10, 1 January 1989 (1989-01-01), pages 1200 - 1205, XP009116788, ISSN: 0914-5400
RAY S P: "Boride-alumina composites: synthesis and fabrication", METALLURGICAL TRANSACTIONS A- PHYSICAL METALLURGY AND MATERIALS SCIENCE, SPRINGER NEW YORK LLC, UNITED STATES, vol. 23A, no. 9, 1 September 1992 (1992-09-01), pages 2381 - 2385, XP009116789, ISSN: 0360-2133
STADLBAUER W ET AL: "AL2O3-TIB2 COMPOSITE CERAMICS", JOURNAL OF MATERIALS SCIENCE LETTERS, CHAPMAN AND HALL LTD. LONDON, GB, vol. 8, no. 10, 1 October 1989 (1989-10-01), pages 1217 - 1220, XP000083887, ISSN: 0261-8028
MATSUSHITA J-I ET AL: "Pressureless sintering of TiB2Al2O3", NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU ROMBUSHI - JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, NIPPON SERAMIKKUSU KYOKAI, TOKYO, JP, vol. 97, no. 10, 1 January 1989 (1989-01-01), pages 1200 - 1205, XP009116788, ISSN: 0914-5400
RAY S P: "Boride-alumina composites: synthesis and fabrication", METALLURGICAL TRANSACTIONS A- PHYSICAL METALLURGY AND MATERIALS SCIENCE, SPRINGER NEW YORK LLC, UNITED STATES, vol. 23A, no. 9, 1 September 1992 (1992-09-01), pages 2381 - 2385, XP009116789, ISSN: 0360-2133
Attorney, Agent or Firm:
LEBKIRI, Alexandre (10 rue de la Pépinière, Paris, FR)
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