Elastic-plastic indentation of hard, brittle materials with spherical indenters

Journal Article · Wed Nov 30 23:00:00 EST 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb04567.x· OSTI ID:6872168

Adler, T A ^[1]

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1. Bureau of Mines, Albany, OR (United States)

A method was developed at the US Bureau of Mines to measure the plastic deformation of hard, brittle materials with low values of elastic modulus to hardness (E/H). The method involves indenting the hard materials with spherical indenters and measuring the resulting contact diameter and depth. Subsequent analysis separates the plastic deformation from the elastic deformation. The analysis is an extension of a theoretical study of the indentation of ductile materials by spherical indenters. The analysis is based on Meyer's law and the results include the distribution of the contact pressure and the profile of the deformed surface. Measurements were made on alumina and WC-Co.

• OSTI ID: 6872168
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:12; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360603 -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COBALT
COMPOSITE MATERIALS
ELASTICITY
ELEMENTS
HARDNESS
MATERIALS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
METALS
OXIDES
OXYGEN COMPOUNDS
PLASTICITY
REFRACTORY METAL COMPOUNDS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS