Method of determining elastic and plastic mechanical properties of ceramic materials using spherical indenters

Title: Method of determining elastic and plastic mechanical properties of ceramic materials using spherical indenters

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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.

Inventors:

Adler, Thomas A. ^[1]

(Corvallis, OR)

Issue Date:: 1996-01-01

OSTI Identifier:: 870287

Assignee:: United States of America as represented by Secretary of (Washington, DC) NETL

Patent Number(s):: US 5490416

Research Org:: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV

Country of Publication:: United States

Language:: English

Subject:: method; determining; elastic; plastic; mechanical; properties; ceramic; materials; spherical; indenters; pertains; ceramics; intermetallics; metals; plastics; hard; brittle; fracture; prior; plastically; deforming; loads; applied; determined; useful; measuring; calculating; deformation; values; modulus; hardness; brittle materials; ceramic material; ceramic materials; mechanical properties; plastic mechanical; elastic modulus; elastic deformation; ceramic mater; plastically deforming; determining elastic; /73/

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