Publication detail

First Principles Study of Vanadium Based Composites Reinforced by Tungsten Nano-fibers

ČERNÝ, M. POKLUDA, J.

English title

First Principles Study of Vanadium Based Composites Reinforced by Tungsten Nano-fibers

Type

Paper in proceedings (conference paper)

Language

en

Original abstract

Calculations of elastic moduli and theoretical uniaxial strength of unidirectional composite having continuous nano-fiber reinforcements are performed using ab initio method. All quantities are computed from the dependence of crystal energy on a suitable deformation parameter. Results for tungsten nano-fibers in vanadium matrix are presented as a particular example of the analysis. The dependence of the computed composite elastic moduli on the atomic concentration of W (nearly corresponding to the volume fraction of fibers) is compared with the rule of mixture for an ideal composite. Results show that validity of the linear mixture rule is theoretically justified for most of them. On the other hand, computed values of theoretical strength exhibit a simple increasing dependence on atomic concentration of W only up to about 70% concentration. Then the values become saturated or even slightly decrease.

Keywords in English

ab inito calculations, nano-composites, theoretical strength

Released

2006-11-13

Publisher

VUTIUM

Location

FSI VUT Brno

ISBN

80-214-3331-0

Book

Nano 06

Pages from–to

297–300

Pages count

4

BIBTEX


@inproceedings{BUT24093,
  author="Miroslav {Černý} and Jaroslav {Pokluda}",
  title="First Principles Study of Vanadium Based Composites Reinforced by Tungsten Nano-fibers",
  booktitle="Nano 06",
  year="2006",
  pages="297--300",
  publisher="VUTIUM",
  address="FSI VUT Brno",
  isbn="80-214-3331-0"
}