公开(公告)号：DE4021042A1

公开(公告)日：1991-01-17

申请号：DE4021042

申请日：1990-07-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BRENNAN JOHN J ,  GALASSO FRANCIS S ,  VELTRI RICHARD D ,  CONDIT DAVID A

IPC: C04B35/571 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32

Abstract: Chemical vapor deposition (CVD) techniques for forming tough silicon carbide (SiC) matrix composites. The introduction of methyldichlorosilane (MDS) to a reactor containing a fiber preform which been flushed with a noble gas, causes the formation of a carbon layer around the fibers. The carbon interlayer improves the fracture toughness of the composite.

公开(公告)号：CA1330913C

公开(公告)日：1994-07-26

申请号：CA553338

申请日：1987-12-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CONDIT DAVID A ,  EATON HARRY E

IPC: B24D3/00 ,  B22F1/02 ,  B24D3/06 ,  C04B41/45 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89 ,  C09K3/14

Abstract: SILICON CARBIDE ABRASIVE PARTICLES HAVING MULTILAYERED COATING Ceramic particles useful as abrasives in a metal matrix layer are described. The particles are coated with an oxide monolayer and a metal duplex layer. Preferably, the particles are silicon carbide; the oxide monolayer is aluminum oxide, and the metal duplex layer is a nickel-boron alloy over pure nickel.

公开(公告)号：FR2649094B1

公开(公告)日：1993-09-24

申请号：FR9008409

申请日：1990-07-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BRENNAN JOHN J ,  GALASSO FRANCIS S ,  VELTRI RICHARD D ,  CONDIT DAVID A

IPC: C04B35/571 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32 ,  C04B35/76

Abstract: Chemical vapor deposition (CVD) techniques for forming tough silicon carbide (SiC) matrix composites. The introduction of methyldichlorosilane (MDS) to a reactor containing a fiber preform which been flushed with a noble gas, causes the formation of a carbon layer around the fibers. The carbon interlayer improves the fracture toughness of the composite.

公开(公告)号：GB2235214B

公开(公告)日：1993-06-02

申请号：GB9014730

申请日：1990-07-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BRENNAN JOHN J ,  GALASSO FRANCIS S ,  VELTRI RICHARD D ,  CONDIT DAVID A

IPC: C04B35/571 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32

Abstract: Chemical vapor deposition (CVD) techniques for forming tough silicon carbide (SiC) matrix composites. The introduction of methyldichlorosilane (MDS) to a reactor containing a fiber preform which been flushed with a noble gas, causes the formation of a carbon layer around the fibers. The carbon interlayer improves the fracture toughness of the composite.

公开(公告)号：GB2235214A

公开(公告)日：1991-02-27

申请号：GB9014730

申请日：1990-07-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BRENNAN JOHN J ,  GALASSO FRANCIS S ,  VELTRI RICHARD D ,  CONDIT DAVID A

IPC: C04B35/571 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32

Abstract: Chemical vapor deposition (CVD) techniques for forming tough silicon carbide (SiC) matrix composites. The introduction of methyldichlorosilane (MDS) to a reactor containing a fiber preform which been flushed with a noble gas, causes the formation of a carbon layer around the fibers. The carbon interlayer improves the fracture toughness of the composite.

公开(公告)号：FR2649094A1

公开(公告)日：1991-01-04

申请号：FR9008409

申请日：1990-07-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BRENNAN JOHN J ,  GALASSO FRANCIS S ,  VELTRI RICHARD D ,  CONDIT DAVID A

IPC: C04B35/571 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32

Abstract: Chemical vapor deposition (CVD) techniques for forming tough silicon carbide (SiC) matrix composites. The introduction of methyldichlorosilane (MDS) to a reactor containing a fiber preform which been flushed with a noble gas, causes the formation of a carbon layer around the fibers. The carbon interlayer improves the fracture toughness of the composite.