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

Adler, Thomas A

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

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870287

Adler, Thomas A ^[1]

Corvallis, OR

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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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

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

Patent Number(s):: US 5490416

OSTI ID:: 870287

Country of Publication:: United States

Language:: English

References (11)

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Scale of microstructure effects on the impact resistance of Al2O3 Anderson, R. M.; Adler, T. A.; Hawk, J. A. Wear, Vol. 162-164 https://doi.org/10.1016/0043-1648(93)90126-7	journal	April 1993
Vickers Indentation Curves of Elastoplastic Materials Loubet, J. L.; Georges, J. M.; Meille, G. Microindentation Techniques in Materials Science and Engineering https://doi.org/10.1520/STP32952S	book	January 1985
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Geometrical Effects in Elastic/Plastic Indentation Marshall, David B. Journal of the American Ceramic Society, Vol. 67, Issue 1 https://doi.org/10.1111/j.1151-2916.1984.tb19148.x	journal	January 1984
A simple predictive model for spherical indentation Field, J. S.; Swain, M. V. Journal of Materials Research, Vol. 8, Issue 2 https://doi.org/10.1557/JMR.1993.0297	journal	February 1993
Energy principle of the indentation-induced inelastic surface deformation and hardness of brittle materials Sakai, M. Acta Metallurgica et Materialia, Vol. 41, Issue 6 https://doi.org/10.1016/0956-7151(93)90194-W	journal	June 1993
Fracture and failure of brittle polycrystals: an overview Meredith, Philip G. Deformation Processes in Minerals, Ceramics and Rocks https://doi.org/10.1007/978-94-011-6827-4_2	book	January 1990
Direct Observation and Analysis of Indentation Cracking in Glasses and Ceramics Cook, Robert F.; Pharr, George M. Journal of the American Ceramic Society, Vol. 73, Issue 4 https://doi.org/10.1111/j.1151-2916.1990.tb05119.x	journal	April 1990
A model for microcrack initiation and propagation beneath hertzian contacts in polycrystalline ceramics Lawn, B. R.; Padture, N. P.; Guiberteau, F. Acta Metallurgica et Materialia, Vol. 42, Issue 5 https://doi.org/10.1016/0956-7151(94)90378-6	journal	May 1994

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

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References (11)

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