Journal article
Approaching the Limits of Strength: Measuring the Uniaxial Compressive Strength of Diamond at Small Scales.
- Wheeler JM Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology , Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
- Raghavan R Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology , Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
- Wehrs J Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology , Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
- Zhang Y Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology , Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
- Erni R Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
- Michler J Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology , Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
- 2015-12-20
Published in:
- Nano letters. - 2016
English
Diamond ⟨100⟩- and ⟨111⟩-oriented nanopillars were fabricated by focused ion beam (FIB) milling from synthetic single crystals and compressed using a larger diameter diamond punch. Uniaxial compressive failure was observed via fracture with a plateau in maximum stress of ∼0.25 TPa, the highest uniaxial strength yet measured. This corresponded to maximum shear stresses that converged toward 75 GPa or ∼ G/7 at small sizes, which are very close to the ultimate theoretical yield stress estimate of G/2π.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1021/acs.nanolett.5b04989
- PMID 26683095
- Persistent URL
- https://sonar.ch/global/documents/234129
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