Composite structure

Details Composite structure Composite structure

2011-03-01

2011-03-01

Ahmed, Sheeba (Department: 1787)

Stock material or miscellaneous articles

Composite

Of inorganic material

Reexamination Certificate

active

07897268

ABSTRACT:
According to the present invention, a structure made of yttrium oxide is formed on a surface of a substrate comprises yttrium oxide polycrystals as a main component, a boundary layer made of hyaline does not substantially exist on a boundary face between crystals which form the structure, and both a cubic system and a monoclinic system exist in the crystal system of the yttrium oxide polycrystals. With this, it is possible to adjust the hardness of the structure made of yttrium oxide formed on a surface of a substrate to be larger than that of an yttrium oxide sintered body.

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