Mechanical deformation of single-crystal ZnO

  title={Mechanical deformation of single-crystal ZnO},
  author={S. O. Kucheyev and J. E. Bradby and J. S. Williams and Chennupati Jagadish and Michael Swain},
The deformation behavior of bulk ZnO single crystals is studied by a combination of spherical nanoindentation and atomic force microscopy. Results show that ZnO exhibits plastic deformation for relatively low loads~*4–13 mN with an;4.2 mm radius spherical indenter !. Interestingly, the elastic–plastic deformation transition threshold depends on the loading rate, with faster loading resulting, on average, in larger threshold values. Multiple discontinuities ~so called ‘‘pop-in’’ events ! in… CONTINUE READING
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