Abstract: The present invention relates to a method of producing a functionally grant material whose components and structure are continuously adjusted by the coating, plating and powder metallurgy techniques to change its function in turn and provide a method of producing a functionally gradient material superior in heat-resistance, corrosion-resistance and resistance to thermal fatigue by distributing a third component having a lower Young's modulus or formed of high-strength material sufficiently durable to the fracture strength among ceramics as a first component and metals or other ceramics as a second component to change the function.
Type:
Grant
Filed:
December 24, 1986
Date of Patent:
June 14, 1988
Assignees:
National Aerospace Laboratories of Science and Technology Agency, Toshio Hirai, Ryuzo Watanabe, Daikin Industries, Ltd., Sumitomo Electric Industries, Ltd.
Abstract: A method of producing rocket combustors wherein in forming an outer cylin by a powder metallurgical method on the outer side of a cylinder provided on its outer periphery with a cooling wall of channel construction having a plurality of grooves, a low-melting alloy is used as a filler to be filled into the grooves. It is also possible to form the outer cylinder after forming a Cu plating shell on the periphery of the inner cylinder filled with the low-melting alloy.
Type:
Grant
Filed:
September 21, 1984
Date of Patent:
April 22, 1986
Assignees:
National Aerospace Laboratories of Science & Technology Agency, Yoshimichi Masuda, Ryuzo Watanabe, Junjiro Takekawa, Sumitomo Electric Industries
Abstract: A method of producing rocket combustors wherein in forming an outer cylin by a powder metallurgical method on the outer side of a cylinder provided on its outer periphery with a cooling wall of channel construction having a plurality of grooves (14), an Ni electroforming layer is formed on the outer side of the outer cylinder, and also a method of producing rocket combustors wherein an outer cylinder is of multilayer construction having two or more layers.
Type:
Grant
Filed:
September 21, 1984
Date of Patent:
April 15, 1986
Assignees:
National Aerospace Laboratories of Science & Technology Agency, Yoshimichi Masuda, Ryuzo Watanabe, Junjiro Takekawa, Sumitoro Electric Industries, Ltd.