Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-11-21
2006-11-21
Xu, Ling (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S699000, C428S701000, C428S702000, C428S323000
Reexamination Certificate
active
07138192
ABSTRACT:
The invention provides a film of an yttria-alumina complex oxide having a high peel strength with respect to a substrate. A mixed powder of powdery materials of yttria and alumina is sprayed on a substrate to form a sprayed film made of an yttria-alumina complex oxide. Preferably, the powdery material of yttria has a 50 percent mean particle diameter of not smaller than 0.1 μm and not larger than 100 μm, and the powdery material of alumina has a 50 percent mean particle diameter of not smaller than 0.1 μm and not larger than 100 μm. Preferably, the yttria-alumina complex oxide contains at least a garnet phase, and may further contain a perovskite phase.
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Ohashi Tsuneaki
Yamada Hirotake
Burr & Brown
NGK Insulators Ltd.
Xu Ling
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