Method for bonding ceramics and metals

• US 4,763,828 A
• Filed: 11/21/1986
• Issued: 08/16/1988
• Est. Priority Date: 12/20/1983
• Status: Expired due to Term

• Current Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
• Original Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
• Inventors: Fukaya, Yasuhiro, Hirai, Shozo
• Primary Examiner(s): Ramsey, Kenneth J.
• Application Number:
  US06/935,067
• Time in Patent Office: 634 Days
• Field of Search: 228/198, 228/122, 228/123, 228/193, 228/194, 228/124, 228/263.12, 228/189
• US Class Current: 228/124.1
• CPC Class Codes: C04B 2235/6567 Treatment time
• CPC Class Codes: C04B 2237/09 wherein the active component for bonding is not the largest fraction of the interlayer
• CPC Class Codes: C04B 2237/12 Metallic interlayers
• CPC Class Codes: C04B 2237/121 based on aluminium
• CPC Class Codes: C04B 2237/122 based on refractory metals
• CPC Class Codes: C04B 2237/123 based on iron group metals, e.g. steel
• CPC Class Codes: C04B 2237/124 based on copper
• CPC Class Codes: C04B 2237/125 based on noble metals, e.g. silver
• CPC Class Codes: C04B 2237/343 Alumina or aluminates
• CPC Class Codes: C04B 2237/348 Zirconia, hafnia, zirconates or hafnates
• CPC Class Codes: C04B 2237/406 Iron, e.g. steel
• CPC Class Codes: C04B 2237/704 of one or more of the ceramic layers or articles
• CPC Class Codes: C04B 2237/708 of one or more of the interlayers
• CPC Class Codes: C04B 37/026 consisting of metals or metal salts

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 Cu₂ O, NiO, SiO₂, FeO, AgO, Al₂ O₃, MoO, TiO₂, ZnO, AuO, Cr₂ O₃, CoO, ZrO₂, TaO, WO₂, NbO, MgO, CaO and Y₂ O₃, 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.

Claims

1. 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 Cu₂ O, NiO, SiO₂, FeO, AgO, Al₂ O₃, MoO, TiO₂, ZnO, AuO, Cr₂ O₃, CoO, ZrO₂, TaO, WO₂, NbO, MgO, CaO and Y₂ O₃, 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/mm² in an atmosphere of inert gas or under vacuum.

2. 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 Cu₂ O, NiO, SiO₂, FeO, AgO, Al₂ O₃, MoO, TiO₂, ZnO, AuO, Cr₂ O₃, CoO, ZrO₂, TaO, WO₂, NbO, MgO, CaO and Y₂ O₃, 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.

3. 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 Cu₂ O, NiO, SiO₂, FeO, AgO, Al₂ O₃, MoO, TiO₂, ZnO, AuO, Cr₂ O₃, CoO, ZrO₂, TaO, WO₂, NbO, MgO, CaO and Y₂ O₃, 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/mm² in an atmosphere of inert gas or under vacuum.

4. 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 Cu₂ O, NiO, SiO₂, FeO, AgO, Al₂ O₃, MoO, TiO₂, ZnO, AuO, Cr₂ O₃, CoO, ZrO₂, TaO, WO₂, NbO, MgO, CaO and Y₂ O₃, 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.