| 摘要 |
<p>An alumina conjugate in which alumina sintered bodies are bonded together via bonding portions. The bonding portions are formed from alumina having a thickness of at least 30µm, and are formed from: coarse independent pores that have a pore diameter the length of which is 40-100% of the thickness of the bonding portion in the thickness direction of the bonding portion; unsintered regions which include micropores having a pore diameter of 5µm or less; and dense sintered regions having a relative density of at least 98%.</p> |
