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Title:
【発明の名称】酸で補助された冷間圧接および金属間形成およびその歯科用途
Document Type and Number:
Japanese Patent JPH10501025
Kind Code:
A
Abstract:
A metallic composite solid, containing alloys and/or intermetallics, is formed by compacting at moderate pressure a mixture of powder particles, foils or sheets at a temperature close to room temperature, well below the melting temperature of the constituent components and without the addition of low melting metals such as mercury, indium or gallium acting as a sintering agent. This low temperature consolidation of the powder mixture is enhanced by having the surface oxide of the powder particles removed, prior to consolidation, and/or by coating the particles with an oxide-replacing metal such as silver or gold. The coating process may be replacement reactions, autocatalytic reduction or electrolytic reduction. The composite formation is assisted by the addition of a liquid acid such as fluoroboric acid, sulfuric acid, fluoric acid,adipic acid, ascorbic acid, or nitric acid. A preferred embodiment of the process for metal solid composite formation is a processfor forming dental restorative materials at ambient temperatures and under pressure exerted by manual dental instrumentation.

Inventors:
Bean, Glenn Elle.
Rushmore, David S.
Dariel, Mosh Pee.
Johnson, Christian Yi.
Lacquer, Menahem Bee.
Giuseppetti, Anthony A.
Ike Miller, Frederick Swie.
Kelly, David Earl.
Application Number:
JP51189695A
Publication Date:
January 27, 1998
Filing Date:
October 05, 1994
Export Citation:
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Assignee:
THE UNITED STATES OF AMERICA
American Dental Association Health Foundation
Bean, Glenn Elle.
International Classes:
A61C5/04; A61K6/04; B22F1/145; B22F3/22; C22C1/10; C22C9/00; C22C47/00; C22C47/14; C23G1/00; (IPC1-7): B22F1/02; C23G1/00; A61K6/04; A61C5/04
Domestic Patent References:
JPH0480303A1992-03-13
JPS56150101A1981-11-20
JPH01119611A1989-05-11
JPH05234729A1993-09-10
JPH0331387A1991-02-12
JPH0543903A1993-02-23
JPH02143404A1990-06-01
JPH01119602A1989-05-11
JPS5819454A1983-02-04
JPS50125922A1975-10-03
Attorney, Agent or Firm:
Takashima Hajime