| 简介 |
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% Al2O3, 30.0 to 55.0 mass% SiO2, and 1.5 to 10.0 mass% rare earth oxide.
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