Systematic and controllable negative, zero, and positive thermal expansion in cubic Zr1–xSnxMo2O8

DOI: 10.1021/ja4060564

Authors: Sarah Tallentire (Durham University) , Felicity Child (Durham University) , Ian Andrew Fall (Durham University) , Liana Vella-Zarb (Durham University) , Ivana Evans (Durham University) , Matthew G. Tucker (ISIS Neutron and Muon Source) , David A. Keen (ISIS Neutron and Muon Source) , Claire Wilson (Diamond Light Source) , John S. O. Evans (Durham University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of The American Chemical Society , VOL 135 (34)

State: Published (Approved)
Published: July 2013

Abstract: We describe the synthesis and characterization of a family of materials, Zr1–xSnxMo2O8 (0 < x < 1), whose isotropic thermal expansion coefficient can be systematically varied from negative to zero to positive values. These materials allow tunable expansion in a single phase as opposed to using a composite system. Linear thermal expansion coefficients, αl, ranging from −7.9(2) × 10–6 to +5.9(2) × 10–6 K–1 (12–500 K) can be achieved across the series; contraction and expansion limits are of the same order of magnitude as the expansion of typical ceramics. We also report the various structures and thermal expansion of “cubic” SnMo2O8, and we use time- and temperature-dependent diffraction studies to describe a series of phase transitions between different ordered and disordered states of this material.

Subject Areas: Materials, Chemistry


Instruments: I19-Small Molecule Single Crystal Diffraction

Other Facilities: GEM at ISIS

Added On: 06/08/2013 12:03

Discipline Tags:

Physical Chemistry Chemistry Materials Science

Technical Tags:

Diffraction Single Crystal X-ray Diffraction (SXRD)