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Findings on Materials Science Described by D.J. Sprouster and Colleagues (Quantitative electromechanical characterization of materials using...

July 1, 2014



Findings on Materials Science Described by D.J. Sprouster and Colleagues (Quantitative electromechanical characterization of materials using conductive ceramic tips)

By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Materials Science have been presented. According to news reporting originating in Minneapolis, Minnesota, by VerticalNews journalists, research stated, "The electromechanical properties of metallic and semiconductor materials are investigated in situ using hard, electrically conductive, vanadium carbide Berkovich tips fitted to a nanoindenter. We demonstrate that, for tip contact radii from 100 nm up to about 1 mu m, quantitative electrical data can be successfully obtained from the through-tip resistive measurements simultaneously with mechanical measurements."

The news reporters obtained a quote from the research, "We outline a procedure for measuring the various resistive components of the electrical circuit that enables sample resistivity and other contact parameters to be evaluated with high precision during mechanical testing. The procedure requires that the tip-to-sample and sample-to-stage electrical contacts exhibit linear (ohmic) I V characteristics."

According to the news reporters, the research concluded: "A gold electrical calibration standard is recommended, as well as a priori measurement of the tip area curves as a function of contact radius."

For more information on this research see: Quantitative electromechanical characterization of materials using conductive ceramic tips. Acta Materialia, 2014;71():153-163. Acta Materialia can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Acta Materialia - www.elsevier.com/wps/product/cws_home/221)

Our news correspondents report that additional information may be obtained by contacting D.J. Sprouster, Hysitron Inc, Minneapolis, MN 55344, United States. Additional authors for this research include S. Ruffell, J.E. Bradby, D.D. Stauffer, R.C. Major, O.L. Warren and J.S. Williams.

Keywords for this news article include: Minnesota, Minneapolis, United States, Materials Science, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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