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.
Claims4
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,
- wherein the average diameter for the closed pores of the aluminum oxide-based protrusion is smaller than the average diameter for the closed pores for each of the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body.
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, and
- wherein the ceramic joined body comprises a region where an absolute value of skewness Sk of a distance between centroids of the closed pores of the aluminum oxide-based protrusion is smaller than an absolute value of skewness Sk of a distance between centroids for each of the first aluminum oxide-based sintered body and the second aluminum oxide-based sintered body.
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, and
- wherein skewness Sk of an equivalent circle diameter for the closed pores of the aluminum oxide-based protrusion is larger than the skewness Sk of the distance between the centroids of the closed pores of the aluminum oxide-based protrusion.
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, and
- wherein an average value for circularity of the closed pores of the aluminum oxide-based protrusion is 0.78 or more.
Dependencies are inferred from the claim text.