| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinel sintered compact having excellent corrosion resistance not only to alkalis such as PbO but also to slugs generated from a furnace for melting ashes obtained by incinerating waste, corrosive harmful gases, etc., and to provide a heat treating member made from the compact. SOLUTION: The corrosion resistant spinel sintered compact comprises principally spinel crystals and has >=98 wt.% total amount of Al2O3 and MgO, 65/35-80/20 weight ratio of Al2O3/MgO, <=2 wt.% ZrO2, >=3.40 g/cm3 bulk density and >=3 μm average crystal particle diameter. |
