Ceramic joined body and method for manufacturing same
AssigneeKYOCERA Corporation
InventorKouji TERAMOTO
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Abstract
A ceramic joined body includes a first aluminum oxide-based sintered body, a second aluminum oxide-based sintered body, an aluminum oxide-based joint layer located between the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body, and an aluminum oxide-based protrusion connected to the aluminum oxide-based joint layer, where the average diameter for closed pores of the aluminum oxide-based projection is 0.8 times or more and 1.5 times or less as large as the average diameter for closed pores for each of the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body.
Claims7
A ceramic joined body comprising a first aluminum oxide-based sintered body, a second aluminum oxide-based sintered body, an aluminum oxide-based joint layer located between the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body, and an aluminum oxide-based protrusion connected to the aluminum oxide-based joint layer,
- wherein an average diameter for closed pores of the aluminum oxide-based projection is 0.8 times or more and 1.5 times or less as large as an average diameter for closed pores for each of the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body.
A method for manufacturing a ceramic joined body, the method comprising the steps of:
- preparing a first molded body containing a powder mainly containing an aluminum oxide, and a resin, and a second molded body containing a powder mainly containing an aluminum oxide, and a resin;
- preparing a paste containing a powder mainly containing an aluminum oxide, a cellulose-based polysaccharide, and a solvent;
- providing the paste on a surface of either the first molded body or the second molded body;
- providing a composite molded body by combining the first molded body and the second molded body such that the paste protrudes from a joint region between the first molded body and the second molded body;
- and
- sintering the composite molded body.
Dependencies are inferred from the claim text.