Ceramic sintered body
AssigneeKYOCERA Corporation
InventorsKouji MATSUSHITA, Yoshito TANI, Yuuki TOMITA
Life of this patent
Estimating the term…
Abstract
A ceramic sintered body contains 90 mass % or more of Al in terms of Al2O3, 0.4 mass % or more and 2.5 mass % or less of Si in terms of SiO2, 3.0 mass % or more and 3.7 mass % or less of Mn in terms of MnO2, 1.1 mass % or more and 1.7 mass % or less of Ti in terms of TiO2, 1.1 mass % or more and 1.7 mass % or less of Fe in terms of Fe2O3, and 0.05 mass % or more and 0.3 mass % or less of Mg in terms of MgO. The ceramic sintered body has a ΔE value of 0 or more and 36 or less, calculated based on a*, b*, and L*.
Claims5
A ceramic sintered body comprising:
- 90 mass % or more of Al in terms of Al2O3;
- 0.4 mass % or more and 2.5 mass % or less of Si in terms of SiO2;
- 3.0 mass % or more and 3.7 mass % or less of Mn in terms of MnO2;
- 1.1 mass % or more and 1.7 mass % or less of Ti in terms of TiO2;
- 1.1 mass % or more and 1.7 mass % or less of Fe in terms of Fe2O3;
- and
- 0.05 mass % or more and 0.3 mass % or less of Mg in terms of MgO,
- wherein ΔE calculated based on a*, b*, and L* is 0 or more and 36 or less.
The ceramic sintered body according to claim, wherein a content of the Mn in terms of MnO2 is 2 or more times and 5 or less times a content of the Fe in terms of Fe2O3.
Dependencies are inferred from the claim text.