| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve fracture toughness of a sintered formed body having a matrix material. <P>SOLUTION: The sintered formed body having (a) 80-99 mass% matrix material and (b) the matrix material containing 1-20 mass% strontium oxide/aluminum oxide-mixed crystal expressed by formula SrAl<SB>12</SB>O<SB>19</SB>, contains 90-100 mass% stabilized zirconium dioxide with respect to the mass of the matrix material. <P>COPYRIGHT: (C)2008,JPO&INPIT |
