Impact of thermal dependence of elastic constants on surface stress measurements
In: Review of Scientific Instruments, Vol. 75 (2004), No. 5, 1357 (2p)
2004article/chapter in journal
Physics (incl. Astronomy)Faculty of Physics » Experimental Physics
Related: 1 publication(s)
Title:
Impact of thermal dependence of elastic constants on surface stress measurements
Author:
Kury, Peter;Horn-von Hoegen, MichaelUDE
- GND
- 1201039908
- LSF ID
- 10366
- ORCID
-
0000-0003-0324-3457
- Other
- connected with university
Year of publication:
2004
Appears in
Title in English (abbreviated):
Rev. Sci. Instrum.
Title in English (abbreviated):
Rev. of Sci. Instrum.
Place of publication:
Melville
Publisher:
American Institute of Physics (AIP)
in:
Vol. 75 (2004), No. 5, 1357 (2p)
ISSN
ISSN
ZDB ID
Library shelfmark:
Abstract:
The accuracy of surface stress data obtained by means of bending sample methods depends on the precise knowledge of the biaxial Youngs modulus E/1−ν which enters as a prefactor in the stress calculation formula of Stoney and describes the stiffness of the sample’s material against biaxial deformation. Room temperature values are commonly used for E/1−ν. However, E/1−ν is significantly temperature dependent. A second order polynomial fit of this dependence is presented for the benefit of future measurements as well as a correction curve for old data