Next Article in Journal
Doped Calcium Silicate Ceramics: A New Class of Candidates for Synthetic Bone Substitutes
Previous Article in Journal
Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi2Te3 and Sb2Te3 Thermoelectric Materials
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Materials 2017, 10(2), 151; doi:10.3390/ma10020151

Uniaxial Negative Thermal Expansion and Mechanical Properties of a Zinc-Formate Framework

1
School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
2
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
3
Department of Civil Engineering, The University of Sheffield, Sheffield S10 2TN, UK
4
Department of Physics and Mechanical & Electrical Engineering, Hubei University of Education, Wuhan 430205, China
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Academic Editor: Dinesh Agrawal
Received: 2 January 2017 / Revised: 2 February 2017 / Accepted: 3 February 2017 / Published: 10 February 2017
View Full-Text   |   Download PDF [2366 KB, uploaded 1 March 2017]   |  

Abstract

The thermal expansion behavior of a metal-formate framework, Zn(HCOO)2·2(H2O) (1), has been systematically studied via variable temperature single-crystal X-ray diffraction. Our results demonstrate that this formate exhibits significant negative thermal expansion (NTE, −26(2) MK−1) along its c-axis. Detailed structural analyses reveal that the large NTE response is attributed to the ‘hinge-strut’ like framework motion. In addition, the fundamental mechanical properties of framework 1 have been explored via nanoindentation experiments. The measured elastic modulus and hardness properties on the (00-2)/(100)/(110) facets are 35.5/35.0/27.1 and 2.04/1.83/0.47 GPa, respectively. The stiffness and hardness anisotropy can be correlated well with the underlying framework structure, like its thermoelastic behavior. View Full-Text
Keywords: metal-formate framework; negative thermal expansion; mechanical property metal-formate framework; negative thermal expansion; mechanical property
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gao, H.; Wei, W.; Li, Y.; Wu, R.; Feng, G.; Li, W. Uniaxial Negative Thermal Expansion and Mechanical Properties of a Zinc-Formate Framework. Materials 2017, 10, 151.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top