Skip to main content
padlock icon - secure page this page is secure

Open Access Enhanced negative thermal expansion by solid solution of HfMgMo1.5W1.5O12

Download Article:
 Download
(PDF 4,806.2 kb)
 
HfMgMo3O12 exhibits a low positive thermal expansion and HfMgW3O12 displays a low negative thermal expansion (NTE). It is found that the solid solution of HfMgMo1.5W1.5O12 has an enhanced NTE with lower anisotropy with respect to HfMgMo3O12 and HfMgW3O12. The coefficients of thermal expansion (CTEs) for HfMgMo1.5W1.5O12 are α a = –6.78 × 10–6 K–1, α b = 6.59 × 10–6 K–1, α c = –5.23 × 10–6 K–1, α v = –6.19 × 106– K–1 for the a-, b- and c-axes and volume, respectively. This gives rise to a linear CTE of α l = –2.06 × 10–6 K–1. The alternative arrangements of W and Mo around each octahedra and differences in electronegativity and cation radius between W and Mo account probably for the enhanced NTE and decreased anisotropy with respect to HfMgMo3O12.

26 References.

No Supplementary Data.
No Article Media
No Metrics

Keywords: NEGATIVE THERMAL EXPANSION; ORTHORHOMBIC STRUCTURE; RAMAN SPECTROSCOPY; SOLID SOLUTION

Document Type: Research Article

Publication date: December 1, 2016

More about this publication?
  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more