Consolidated material of coated powders and process for producing the same

Abstract

A consolidated material of coated powders obtained by a method which comprises forming a molding by mutually bonding powder particles having a given property and in which the powder particles can be made to have a desired arrangement or can be arranged in positions giving such a predetermined distance that desired properties are obtainable. The present invention shows a process for producing a consolidated material of coated powders which are mutually consolidated, comprising adhering either powders each comprising a base particle having thereon a coating film having a uniform thickness of 0.01 to 20 μm or powders each comprising base particles each having thereon plural coating films having a uniform thickness of 0.01 to 5 μm per film in which at least any adjacent coating films are different in kind, at the coating film or by an adhesive.

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         9 . A consolidated material of coated powders in the form of a molded, three-dimensional article, said coated powders each comprising a base particle having thereon a coating film having a uniform thickness of 0.01 to 20 μm, wherein the coated powders are mutually adhered at the coating film, the base particle comprises a glass, a metal, or a metal oxide, and the coating film is a metal film or a metal oxide film, wherein the coated powders constituting the consolidated material are three-dimensionally arranged at the same distance from one another in a given direction and are united into said consolidated material while maintaining the same distance in a given direction.  
     
     
         10 . A consolidated material of coated powders in the form of a molded, three-dimensional article, said coated powders each comprising a base particle having thereon plural coating films having a uniform thickness of 0.01 to 5 μm per film in which at least any adjacent coating films are different in kind, wherein the coated powders are mutually adhered at the outermost coating film, the base particle comprises a glass, a metal, or a metal oxide, and the coating films are each a metal film or a metal oxide film, wherein the coated powders constituting the consolidated material are three-dimensionally arranged at the same distance from one another in a given direction and are united into said consolidated material while maintaining the same distance in a given direction.  
     
     
         11 . The consolidated material of coated powders according to  claim 9 , wherein the base particle comprises a magnetic material.  
     
     
         12 . The consolidated material of coated powders according to  claim 10 , wherein the base particle comprises a magnetic material.  
     
     
         13 . The consolidated material of coated powders according to  claim 11 , wherein at least one of the coating films comprises a dielectric material.  
     
     
         14 . The consolidated material of coated powders according to  claim 12 , wherein at least one of the coating films comprises a dielectric material.  
     
     
         15 . A process for producing a consolidated material of coated powders as claimed in  claim 9 , which comprises adhering coated powders each comprising a base particle having thereon a coating film having a uniform thickness of 0.01 to 20 μm at the coating film.  
     
     
         16 . A process for producing a consolidated material of coated powders as claimed in  claim 10 , which comprises adhering coated powders each comprising a base particle having thereon plural coating films having a uniform thickness of 0.01 to 5 μm per film in which adjacent coating films are different in kind at the coating film.  
     
     
         17 . A magnetic material comprising magnetic material powders which have been subjected to heat treatment under pressure to consolidate the same, said magnetic material powders comprising particles each comprising a magnetic base particle having thereon a metal oxide film, wherein the magnetic material powders constituting the consolidated material are three-dimensionally arranged at the same distance from one another in a given direction and are united into said consolidated material while maintaining the same distance in a given direction.  
     
     
         18 . A capacitor comprising coated powders which have been subjected to heat treatment under pressure to consolidate the same, said coated powders each comprising a base particle having thereon plural coating films and forming a dielectric-material layer and a conductor layer on the surface of said base particles, wherein the coated powders constituting the consolidated material are three-dimensionally arranged at the same distance from one another in a given direction and are united into said consolidated material while maintaining the same distance in a given direction.  
     
     
         19 . A non-linear optical material comprising coated powders which have been subjected to heat treatment under pressure to consolidate the same, said coated powders each comprising a base particle having thereon a clear multilayer metal oxide film, wherein the coated powders constituting the consolidated material are three-dimensionally arranged at the same distance from one another in a given direction and are united into said consolidated material while maintaining the same distance in a given direction, said base particle imparting a non-linear property to said material.