Chemical bonding of metals to ceramic materials
AssigneesCommonwealth Scientific and Industrial Research Organization, The Flinders University of South Australia
InventorsHenderikus Johannes de Bruin, Charles Edward Warble
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Abstract
A refractory oxide ceramic is chemically bonded to a metal by disposing the surfaces to be joined in an abutting relationship and heating at least the abutting surfaces in air to a temperature below the melting point of the lowest melting component of the system, the temperature being sufficient to cause a chemical reaction between the ceramic oxide and the metal thereby forming a bond between the two abutting surfaces.
Claims26
A method for chemically bonding a body of a refractory oxide ceramic selected from the group consisting of oxides of metals of groups II, III, IV and VIII of the Periodic Classification of the Elements and mixtures of such oxides, in chemical combination and physical admixture to the body of a metal selected from the group consisting of metals having atomic numbers between 21 and 29 inclusive in the first transition series between 39 and 47 inclusive in the second transition series and between 57 and 79 inclusive in the third transition series;
- the method comprising disposing selected surfaces of the bodies to be bonded in abutting relationship and heating at least the abutting surfaces in an atmosphere consisting of air to a temperature below the melting point of the lowest melting component of the system, the temperature sufficient to bring about a chemical reaction between the ceramic oxide and the metal thereby forming a bond between the said surfaces.
A metal for chemically bonding a body of a refractory oxide ceramic selected from the group consisting of oxides of metals of groups II, III, IV and VIII of the Periodic Classification of the Elements and mixtures of such oxides, in chemical combination and physical admixture of the body of a metal foil selected from the group consisting of metals having atomic numbers between 21 and 29 inclusive in the first transition series, between 39 and 47 inclusive in the second transition series, and between 57 and 79 inclusive in the third transition series, the method consisting of:
- disposing selected surfaces of said body of a refractory oxide ceramic and said body of a metal foil to be bonded in abutting relationship, and
- heating at least the abutting surfaces in an atmosphere consisting of air to a temperature below the melting point of the lowest melting component of the system, the temperature sufficient to bring about a chemical reaction between the ceramic oxide and the metal thereby forming a bond between the abutting surfaces.
Dependencies are inferred from the claim text.