EP0277645A1
Expired / Lapsed
EP
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Ceramics-metal jointed body
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1988-02-02
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Granted: —
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Expires: 2008-02-02
Abstract
Abstract A ceramics-metal jointed body which excels in high temperature characteristics and joint strength is formed by metallizing the surface of ceramics such as oxides, carbides, borides, nitrides, and composites thereof, and joining a metallic member through a solder to the metallized surface.
Inventors
- 👤 Hirohiko C/O Itami Works Of Sumitomo Nakata
- 👤 Takao C/O Itami Works Of Sumitomo Nishioka
- 👤 Nobuya C/O Itami Works Of Sumitomo Oooka
- 👤 Kenya C/O Itami Works Of Sumitomo Motoyoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 14:39
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/124; C04B2237/125; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/36; C04B2237/365; C04B2237/368; C04B2237/40; C04B2237/405; C04B2237/406; C04B2237/50; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12611; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A ceramics-metal jointed body having high temperature characterisitics comprising a ceramics part and a metal part, said body further comprising: a metal deposition layer of one or more metals containing an active metal or metals between said ceramics part and said metal part; and an intermediate layer comprising at least a solder layer between said metal deposition layer and said metal part, wherein said metal deposition layer is formed on the surface of said ceramics part by means of a physical vapor deposition process and diffused into said ceramics part and said solder layer.
Claim 2
Dependent Claim
94 words
A ceramics-metal jointed body having high temperature characterisitics comprising a ceramics part and a metal part, said body further comprising: a metal deposition layer of one or more metals containing an active metal or metals between said ceramics part and said metal part; and an intermediate layer comprising at least a solder layer between said metal deposition layer and said metal part, wherein said metal deposition layer is formed on the surface of said ceramics part by means of a physical vapor deposition process and diffused into said ceramics part and said solder layer.
Claim 3
Dependent Claim
19 words
A ceramics-metal jointed body as claimed in claim 1, wherein said solder layer has a melting point above 900°C.
Claim 4
Dependent Claim
75 words
A ceramics-metal jointed body as claimed in claim 1, wherein said metal deposition layer is formed by one of laminate-deposition and multi-deposition of two or more metals containing an active metal or metals by means of a physical vapor deposition process and heating at a temperature above the whole melting points of the resultant metal layers, thereby to perform mutual diffusion between said ceramics part and said metal layers and between said resultant metal layers.
Claim 5
Dependent Claim
26 words
A ceramics-metal jointed body as claimed in claim 1, wherein the thickness of said metal deposition layer is within the range of 0.01 to 20 µm.
Claim 6
Dependent Claim
21 words
A ceramics-metal jointed body as claimed in claim 1, wherein the melting point of said metal deposition layer is below 1,600°C.
Claim 7
Dependent Claim
26 words
A ceramics-metal jointed body as claimed in claim 1, wherein said solder comprises any one of an Ag solder, a Ni solder and a Pd solder.
Claim 8
Dependent Claim
38 words
A ceramics-metal jointed body as claimed in claim 1, wherein said intermediate layer is a multi-joint layer comprising at least one layer of super hard alloy and solder layers provided at both sides of said super hard alloy.
Claim 9
Dependent Claim
24 words
A ceramics-metal jointed body as claimed in claim 7, wherein said layer of said super hard alloy contains not less than 50% of WC.
Claim 10
Dependent Claim
44 words
A ceramics-metal jointed body as claimed in claim 1, wherein the surface of said ceramics part is laminate- or multi-deposited with Ti,Cu and Ag in a thickness of 0.1-5.0 µm by means of a physical deposition process, thereby to form said metal deposition layer.
Claim 11
Dependent Claim
61 words
A ceramics-metal jointed body as claimed in claim 9, wherein said metal deposition layer is heated at a temperature above the melting points of said whole metal deposition layer to react in a liquid phase state with said ceramics part and to perform mutual diffusion between said ceramics part and said metal deposition layer and between the respective deposition metal layers.
Claim 12
Dependent Claim
34 words
A ceramics-metal jointed body as claimed in claim 1, wherein said active metals comprises any one of the metals selected from the group consisting of Ti,Ni, Zr, Nb, W, Mo, Tl, Fe and Al.
Claim 13
Dependent Claim
25 words
A ceramics-metal jointed body as claimed in claim 1, wherein said physical vapor deposition process comprises any one of an ion plating and sputtering methods.
References Cited (Backward Citations)
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