Back to results
US 5,794,838 AGranted
Ceramics joined body and method of joining ceramics
AssigneeNGK Insulators, Ltd.
InventorsRyusuke Ushikoshi, Hideyoshi Tsuruta, Tomoyuki Fujii
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNGK Insulators, Ltd.
InventorsRyusuke Ushikoshi, Hideyoshi Tsuruta, Tomoyuki Fujii
Estimating the term…
Novel method of joining ceramics containing aluminum nitride and another member made of a metal or a ceramic is provided having an improved joining strength and a corrosion-resistant property by joining a first member made of a ceramics consisting of an aluminum compound. The second member is made of a ceramics or a metal, forming a metal film directly on a surface to be joined of the first member interposing a metallic joining material which is made of a different material from the metal film. The metallic joining material is between the metal film and the second member, and by heating at least the metallic joining material and the metal film in such an interposed state to form a joining layer made of the metallic joining material and an intermetallic compound between the first and second members, so as to join the two members.
A method of joining ceramics, including joining a ceramic first member made of aluminum nitride and a second member made of a ceramics or a metal, forming a metal film on a surface to be joined of the first member such that the metal film contacts directly with the surface to be joined of the first member, interposing a metallic joining material made of a different material from the metal film between the metal film and the second member, and heating at least the metallic joining material and the metal film in the state that the metallic joining material intervenes between the metal film and the second member thereby to join the first member and the second member.
Dependencies are inferred from the claim text.