| 摘要 |
<p>Disclosed is a high-strength alumina sintered body which consists of 1 to 30% by weight, based on Al2O3 and ZrO2, or ZrO2 and 99 to 70% by weight, based on Al2O3 and ZrO2, of Al2O3, and unavoidable impurities, said sintered body having a peak based on ZrO2 at a position of a wave number of 600 +/- 10 cm<-><1> in a measurement chart of the laser Raman spectrum analysis. This sintered body has a high flexural strength and a high breaking toughness in combination.</p> |
