US4763828A
Expired / Lapsed
US
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Method for bonding ceramics and metals
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1986-11-21
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Granted: 1988-08-16
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Expires: 2006-11-21
Abstract
Abstract A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by ion plating or spray coating, subjecting the deposited insert material to thermal reaction-promoting treatment to permit metallurgical bond between the composite insert material and the ceramic material, and bonding a metal member to the surface of the insert material by diffusion welding or brazing.
Inventors
- 👤 Yasuhiro Fukaya
- 👤 Shozo Hirai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/09; C04B2237/12; C04B2237/121; C04B2237/122; C04B2237/123; C04B2237/124; C04B2237/125; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/40; C04B2237/405; C04B2237/406; C04B2237/50; C04B2237/70; C04B2237/704; C04B2237/708
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
200 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by ion plating, bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently diffusion-welding said ceramic and said composite insert material by heating while pressurizing the surface of said composite insert material and said bonding metal at less than 5 kg/mm 2 in an atmosphere of inert gas or under vacuum.
Claim 2
Independent Claim
200 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by ion plating, bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently diffusion-welding said ceramic and said composite insert material by heating while pressurizing the surface of said composite insert material and said bonding metal at less than 5 kg/mm 2 in an atmosphere of inert gas or under vacuum.
Claim 3
Independent Claim
175 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by ion plating, then bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently brazing the surface of said composite insert material and said bonding metal.
Claim 4
Independent Claim
175 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by ion plating, then bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently brazing the surface of said composite insert material and said bonding metal.
Claim 5
Independent Claim
200 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by spray coating, bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently diffusion-welding said ceramic and said composite insert material by heating while pressurizing the surface of said composite insert material and said bonding metal at less than 5 kg/mm 2 in an atmosphere of inert gas or under vacuum.
Claim 6
Independent Claim
200 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mg by spray coating, bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently diffusion-welding said ceramic and said composite insert material by heating while pressurizing the surface of said composite insert material and said bonding metal at less than 5 kg/mm 2 in an atmosphere of inert gas or under vacuum.
Claim 7
Independent Claim
175 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mb by spray coating, then bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently brazing the surface of said composite insert material and said bonding metal.
Claim 8
Independent Claim
175 words
A method for bonding oxide ceramics and metals which comprises the steps of depositing, on an oxide ceramic material, a composite insert material consisting of a mixture of at least one oxide selected from the group consisting of Cu 2 O, NiO, SiO 2 , FeO, AgO, Al 2 O 3 , MoO, TiO 2 , ZnO, AuO, Cr 2 O 3 , CoO, ZrO 2 , TaO, WO 2 , NbO, MgO, CaO and Y 2 O 3 , and at least one metal selected from the group consisting of Cu, Ni, Si, Fe, Ag, Al, Mo, Ti, Zn, Au, Cr, Co, Zr, Ta, W, Nb and Mb by spray coating, then bonding said composite insert material and said ceramic metallurgically by heating said composite insert material in an inert gas atmosphere or under vacuum at temperatures more than one-third of the melting point of said composite insert material and less than said melting point of said composite insert material, and subsequently brazing the surface of said composite insert material and said bonding metal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |