| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous material excellent in heat resistance and thermal shock resistance.SOLUTION: A porous material includes aggregates and an amorphous binding material for binding the aggregates to one another in a state where pores are formed among the aggregates, the binding material contains a rare earth element, the amorphous binding material preferably contains magnesium, aluminum, silicon, the rare earth element and oxygen, and the amorphous binding material preferably contains 8.0 to 15.0 mass% MgO, 30.0 to 60.0 mass% AlO, 30.0 to 55.0 mass% SiO, and 1.5 to 10.0 mass% rare earth oxide. |
