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Development of an In-Situ Nanoindentation Specimen Holder for the High Voltage Electron Microscope

Published online by Cambridge University Press:  02 July 2020

M.A. Wall  and
U. Dahmen
M.A. Wall
Affiliation:
Lawrence Livermore National Laboratory
U. Dahmen
Affiliation:
Lawrence Berkeley National Laboratory
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Extract

Progress on the development of an in-situ nanoindentation specimen holder for the Kratos 1.5MeV HVEM located at the National Center for Electron Microscopy, Berkeley, CA, USA, is reported. There is currently considerable work being reported on the mechanical properties (i.e., hardness, delamination, wear, etc.) of single and multicomponent thin films, nanoclusters and fibers by techniques such as nanoindenting, ref. [1] are recent examples. However, with all of these tests there has not been direct, unambiguous observation of the response or evolution of the microstructure. With many of these reports, there has been little “post-mortem” TEM characterization and there has been no real attempts to simulate these dynamically in the TEM. For the case of nano-testing of the materials the interaction volumes are often on the scale of the natural sampling volume of the HVEM. It seems natural that post-mortem and in-situ TEM characterization techniques be applied.

Type
In Situ Studies in Microscopy
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 593 - 594
Copyright
Copyright © Microscopy Society of America 1997

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References

Thin films: Stresses and mechanical properties VI, MRS Sym. Proc., Vol. 436, 1997. MRS publishers, Pittsburgh, PNGoogle Scholar
Wall, M. A., Proceedings Annual MSA Meeting, 1995, 240–241.10.1017/S0424820100137574CrossRefGoogle Scholar
The authors wish to thank Mr. Richard Gross of Lawrence Livermore National Laboratory and Mr. Doug Owen of Lawrence Berkeley National Laboratory for their technical support of the project. This work was performed under the auspices of the US Department of Energy by the Lawrence Livermore National Laboratory under contract W-7405-Engr-48.Google Scholar