| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress deterioration in characteristics of a base material and lower the sintering temperature. <P>SOLUTION: A sintering aid composition for a ceramic comprises at least copper oxide, titanium oxide and niobium oxide. When the ternary composition is expressed as xCuO-yTiO<SB>2</SB>-zNbO<SB>2.5</SB>(wherein x, y and z are molar ratios satisfying the relation: x+y+z=1.0), x, y and z lie inside a rectangular area enclosed by apexes A, B, C and D having coordinates (x, y, z)=(0.500, 0.250, 0.250), (0.300, 0.250, 0.450), (0.640, 0.040, 0.320) and (0.384, 0.040, 0.576), respectively, in a ternary composition diagram. <P>COPYRIGHT: (C)2007,JPO&INPIT |
