Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1994-12-15
1997-04-29
Chilcot, Richard
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
73760, G01B 716, G01L 100
Patent
active
056251548
ABSTRACT:
A method and apparatus for testing a ceramic member applies mechanical stress to the member by application of mechanical force and simultaneously applies thermal stress by creating a temperature gradient in the member by localized heating of a portion thereof. The mechanical stress is impact stress or may be applied by application of a static load to the ceramic member. The method is especially applied to the proof-testing a plurality of ceramic members for quality assurance, particularly engine valve members.
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Dewitte Carine A. M. C.
Matsuhiro Keiji
Pattimore Jeffrey P. J.
Chilcot Richard
NGK Ceramics Europe S.A.
NGK Insulators Ltd.
Noori Max H.
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