Elastic and plastic properties of Mo3Si measured by nanoindentation

J.G. Swadener, Isa Rosales, Joachim H. Schneibel

Research output: Contribution to journalArticle

Abstract

Single crystal Mo3Si specimens were grown and tested at room temperature using established nanoindentation techniques at various crystallographic orientations. The indentation modulus and hardness were obtained for loads that were large enough to determine bulk properties, yet small enough to avoid cracking in the specimens. From the indentation modulus results, anisotropic elastic constants were determined. As load was initially increased to approximately 1.5 mN, the hardness exhibited a sudden drop that corresponded to a jump in displacement. The resolved shear stress that was determined from initial yielding was 10-15% of the shear modulus, but 3 to 4 times the value obtained from the bulk hardness. Non-contact atomic force microscopy images in the vicinity of indents revealed features consistent with {100}(010) slip.

Original languageEnglish
Pages (from-to)N421-N426
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume646
DOIs
Publication statusPublished - 2001

Fingerprint

Nanoindentation
nanoindentation
plastic properties
hardness
elastic properties
Hardness
Plastics
indentation
Indentation
Loads (forces)
Elastic constants
shear stress
Shear stress
Atomic force microscopy
slip
Elastic moduli
Single crystals
atomic force microscopy
shear
single crystals

Bibliographical note

2000 MRS Fall Meeting

Keywords

  • anisotropy
  • atomic force microscopy
  • single crystals
  • indentation
  • nanoindentation
  • molybdenum compounds

Cite this

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Elastic and plastic properties of Mo3Si measured by nanoindentation. / Swadener, J.G.; Rosales, Isa; Schneibel, Joachim H.

In: Materials Research Society Symposium Proceedings, Vol. 646, 2001, p. N421-N426.

Research output: Contribution to journalArticle

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AU - Swadener, J.G.

AU - Rosales, Isa

AU - Schneibel, Joachim H.

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PY - 2001

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