Ceramics composite member and method of producing the same
AssigneeKabushiki Kaisha Toshiba
InventorsShoko SUYAMA, Yoshiyasu Ito, Shigeki Maruyama, Norihiko Handa
Life of this patent
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Abstract
A ceramics composite member includes a structure in which a first ceramic member and a second ceramic member are integrated with a joint portion. The joint portion has a texture in which a silicon phase having an average diameter of 0.05 μm or more and 10 μm or less is continuously provided in a network form in interstices of silicon carbide particles having an average particle diameter of 0.1 μm or more and 0.1 mm or less.
Claims24
-13. (canceled)
A method of producing a ceramics composite member, comprising:
- adhering a first ceramic member and a second ceramic member with an adhesive containing silicon carbide powder, carbon powder and an organic resin;
- heat-treating and carbonizing a bonding portion based on the adhesive to obtain a porous preliminary joint potion;
- and
- impregnating the porous preliminary joint potion with melted silicon to couple the first ceramic member and the second ceramic member with a joint portion which is formed by reaction-sintering the porous preliminary joint potion with the melted silicon,
- wherein a mass ratio of the silicon carbide powder and a total of the carbon powder and a carbon component derived from the organic resin in the adhesive is in a range of SiC:C=5 to 80:95 to 20.
15-16. (canceled)
A method of producing a ceramics composite member, comprising:
- adhering shaped bodies each containing silicon carbide powder and carbon powder with an adhesive containing silicon carbide powder, carbon powder and an organic resin;
- heat-treating and carbonizing a bonding portion based on the adhesive to obtain a porous preliminary joint potion;
- and
- impregnating the shaped bodies and the porous preliminary joint potion with melted silicon to couple silicon-silicon carbide composite sintered bodies which are formed by reaction-sintering the shaped bodies with a joint portion which is formed by reaction-sintering the porous preliminary joint potion with the melted silicon,
- wherein a mass ratio of the silicon carbide powder and a total of the carbon powder and a carbon component derived from the organic resin in the adhesive is in a range of SiC:C=5 to 80:95 to 20.
22-23. (canceled)
(canceled)
A method of producing a ceramics composite member, comprising:
- adhering a shaped body containing silicon carbide powder and carbon powder and a ceramics sintered body with an adhesive containing silicon carbide powder, carbon powder and an organic resin;
- heat-treating and carbonizing a bonding portion based on the adhesive to obtain a porous preliminary joint potion;
- and
- impregnating the shaped body and the porous preliminary joint potion with melted silicon to couple a silicon-silicon carbide composite sintered body which are formed by reaction-sintering the shaped body and the ceramics sintered body with a joint portion which is formed by reaction-sintering the porous preliminary joint potion with the melted silicon,
- wherein a mass ratio of the silicon carbide powder and a total of the carbon powder and a carbon component derived from the organic resin in the adhesive is in a range of SiC:C=5 to 80:95 to 20.
Dependencies are inferred from the claim text.