Journal
MATERIALS AND MANUFACTURING PROCESSES
Volume 22, Issue 2, Pages 175-179Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10426910601062222
Keywords
hardness; nanoindentation; nickel-titanium thin films; shape memory alloys; stress-induced phase transformation; Young's modulus
Ask authors/readers for more resources
Ni - Ti thin films of various compositions were sputtered-deposited on silicon substrates. Their mechanical properties ( hardness and Young's modulus) were then determined using a nanoindenter equipped with a Berkovich tip. This paper examines the effects of composition on the mechanical properties ( hardness and Young's modulus) of the sputter deposited Ni - Ti thin films. This is of particular interest since the actuation properties of these shape memory alloy films are compositionally sensitive. The surface-induced deformation is revealed via Atomic Force Microscopy (AFM) images of the indented surfaces. Which show evidence of material pile-up that increases with increasing load. The measured Young's moduli are also shown to provide qualitative measures of the extent of stress-induced phase transformation in small volumes of Ni - Ti films.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available