| 摘要 |
The present invention provides a technique of improving wear resistance of a Sialon sintered body. The Sialon sintered body has a Sialon phase including at least a ²-Sialon and a 12H-Sialon among an ±-Sialon, the ²-Sialon and the 12H-Sialon. A ratio of a second Sialon total content, which is a sum of the contents of the ±-Sialon and the 12H-Sialon, to a first Sialon total content, which is a sum of contents of the ±-Sialon, the ²-Sialon and the 12H-Sialon, is greater than 20% and not greater than 55%, and a ratio of the content of the 12H-Sialon to the first Sialon total content is not less than 2% and not greater than 55%. |
