TITLE

Size effect on intragranular elastic constants in thin tungsten films

AUTHOR(S)
Villain, P.; Goudeau, Ph.; Renault, P.-O.; Badawi, K. F.
PUB. DATE
December 2002
SOURCE
Applied Physics Letters;12/2/2002, Vol. 81 Issue 23, p4365
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The size effect on the elastic constants of nanocrystalline tungsten has been investigated in the case of W/Cu multilayers with two modulation wavelengths (3.1 and 24.0 nm). Tungsten Young's modulus and Poisson's ratio have been measured thanks to a technique coupling x-ray diffraction with in situ tensile testing. It is demonstrated that the in-grain thin film elastic constants are highly microstructure—sensitive: in the "3.1 nm" multilayer, tungsten Poisson's ratio is larger than the bulk one while it is smaller in the "24.0 nm" multilayer; a softening of tungsten Young's modulus is evidenced in the case of the specimen with the smallest period.
ACCESSION #
8563576

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics