Thermal insulation member
AssigneeNGK Insulators, Ltd.
InventorsAkinobu Oribe, Takahiro Tomita, Hiroharu Kobayashi
Life of this patent
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Abstract
A thermal insulation member is directly or indirectly sandwiched between a first object and a second object and thereby suppresses or interrupts heat transfer between the first object and the second object. The thermal insulation member comprises: a first main surface opposed to the first object; and a second main surface positioned on the opposite side from the first main surface and opposed to the second object. The thermal insulation member has a porous structure of ceramic having pores. ZrO2 particles and different type material exist on surfaces of the ZrO2 particles form a skeleton of the porous structure. The different type material includes at least one selected out of SiO2, TiO2, La2O3, and Y2O3.
Claims10
A thermal insulation member aggregate comprising:
- a plurality of thermal insulation members having a plate shape, a tile shape, or a block shape,
- which are directly sandwiched between a first object and a second object and thereby suppresses or interrupts heat transfer between said first object and said second object;
- a first main surface opposed to said first object;
- and
- a second main surface positioned on the opposite side from said first main surface and opposed to said second object,
- each of said plurality of thermal insulation members having a porous structure of ceramic having pores,
- wherein ZrO2 particles and different type material existing on surfaces of said ZrO2 particles form a skeleton of said porous structure,
- said different type material includes at least one selected out of SiO2, TiO2, La2O3, and Y2O3, and
- wherein in said skeleton, an average of minimum widths at connecting parts between ZrO2 particles is not lower than 50% and not higher than 90% of an average particle diameter of said ZrO2 particles.
Dependencies are inferred from the claim text.