| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective tube having excellent resistance to thermal shock, and capable of being used without being damaged even in a case in which 500-1,000 deg.C difference of the temperature is caused under a thermally severe condition in a refuge incinerator or the like. SOLUTION: This heat-resistant and corrosion-resistant protective tube is composed of a partially stabilized zirconia ceramic consisting essentially of ZrO2, containing 3.0-3.8 wt.% MgO as a stabilizer, and further including 10-60 mol% monoclinic zirconia crystal. |
