ALUMINUM NITRIDE SINTERED COMPACT AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide an aluminum nitride sintered compact containing no sintering aid including a group 3A oxide and having small surface roughness even when processed by grinding work, and a method for producing the same.SOLUTION: There is provided the anti-corrosive aluminum nitride si...
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| creator | ISHIDA HIRONORI KANNO AKIRA UMEKI TOSHIYA TSUCHIDA ATSUSHI KITABAYASHI TETSUO |
| description | PROBLEM TO BE SOLVED: To provide an aluminum nitride sintered compact containing no sintering aid including a group 3A oxide and having small surface roughness even when processed by grinding work, and a method for producing the same.SOLUTION: There is provided the anti-corrosive aluminum nitride sintered compact with ≥99% purity, having 3.20×10kg/mdensity and containing ≥200 ppm and ≤400 ppm Ca, ≥10 ppm and ≤100 ppm Si and ≥220 ppm and ≤1,500 ppm C. The aluminum nitride sintered compact does not contain the sintering aid including the group 3A oxide, and contains Ca which is a densification-promoting material, and Si and C which are densification-inhibiting materials in each predetermined amount. Thus, the surface roughness of the aluminum nitride sintered compact can be reduced on a ground surface. As the result, anti-corrosive properties of the aluminum nitride sintered compact can be improved, and the surface area of the ground surface becomes smaller. |
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The aluminum nitride sintered compact does not contain the sintering aid including the group 3A oxide, and contains Ca which is a densification-promoting material, and Si and C which are densification-inhibiting materials in each predetermined amount. Thus, the surface roughness of the aluminum nitride sintered compact can be reduced on a ground surface. 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The aluminum nitride sintered compact does not contain the sintering aid including the group 3A oxide, and contains Ca which is a densification-promoting material, and Si and C which are densification-inhibiting materials in each predetermined amount. Thus, the surface roughness of the aluminum nitride sintered compact can be reduced on a ground surface. As the result, anti-corrosive properties of the aluminum nitride sintered compact can be improved, and the surface area of the ground surface becomes smaller.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES SEMICONDUCTOR DEVICES SLAG TREATMENT OF NATURAL STONE |
| title | ALUMINUM NITRIDE SINTERED COMPACT AND METHOD FOR PRODUCING THE SAME |
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