公开(公告)号：WO1985000803A1

公开(公告)日：1985-02-28

申请号：PCT/US1984001184

申请日：1984-07-24

Applicant: GTE LABORATORIES INCORPORATED

Inventor： GTE LABORATORIES INCORPORATED ,  PASTO, Arvid, E.

IPC: C04B35/58

CPC classification number: C04B35/584 ,  C04B35/195 ,  F02B3/06

Abstract: A silicon nitride-cordierite article, and process for fabricating. The silicon nitride imparts a high mechanical strength, and the cordierite contributes to a lower thermal conductivity making the composition especially useful for internal parts of a diesel engine. The mechanical strength can be increased by crystallizing the continuous cordierite glassy phase of the article. Crystallization of the continuous cordierite glassy phase is accomplished by the addition of a nucleating agent such as zirconium dioxide in the formulation and a subsequent reheating step after densification.

公开(公告)号：EP0152481B1

公开(公告)日：1988-09-28

申请号：EP84903503.5

申请日：1984-07-24

Applicant: GTE Laboratories Incorporated

Inventor： PASTO, Arvid, E.

IPC: C04B35/58

CPC classification number: C04B35/584 ,  C04B35/195 ,  F02B3/06

Abstract: A silicon nitride-cordierite article, and process for fabricating. The silicon nitride imparts a high mechanical strength, and the cordierite contributes to a lower thermal conductivity making the composition especially useful for internal parts of a diesel engine. The mechanical strength can be increased by crystallizing the continuous cordierite glassy phase of the article. Crystallization of the continuous cordierite glassy phase is accomplished by the addition of a nucleating agent such as zirconium dioxide in the formulation and a subsequent reheating step after densification.

公开(公告)号：EP0152481A1

公开(公告)日：1985-08-28

申请号：EP84903503.0

申请日：1984-07-24

Applicant: GTE Laboratories Incorporated

Inventor： PASTO, Arvid, E.

IPC: C04B35 ,  F02B3

CPC classification number: C04B35/584 ,  C04B35/195 ,  F02B3/06

Abstract: Article fabriqué avec du nitrure de silicium et de la cordiérite, et son procédé de fabrication. Le nitrure de silicium confère à l'article une résistance mécanique élevée, et la cordiérite contribue à obtenir une conductivité thermique plus faible, rendant ainsi la composition spécialement utile pour la fabrication de pièces internes d'un moteur diesel. La résistance mécanique peut être accrue par cristallisation de la phase vitreuse continue de cordiérite de l'article. La cristallisation de la phase vitreuse continue de cordiérite s'effectue en ajoutant à la composition un agent de nucléation tel que du bioxyde de zirconium et en réchauffant après densification.