Measuring and testing – Hardness – By penetrator or indentor
Patent
1994-11-04
1996-02-13
Raevis, R.
Measuring and testing
Hardness
By penetrator or indentor
G01N 342
Patent
active
054904161
ABSTRACT:
The invention pertains a method of determining elastic and plastic mechanical properties of ceramics, intermetallics, metals, plastics and other hard, brittle materials which fracture prior to plastically deforming when loads are applied. Elastic and plastic mechanical properties of ceramic materials are determined using spherical indenters. The method is most useful for measuring and calculating the plastic and elastic deformation of hard, brittle materials with low values of elastic modulus to hardness.
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Koltos E. Philip
Raevis R.
The United States of America as represented by the Secretary of
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