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Title: Controlling the Negative Thermal Expansion and Response to Pressure in ReO3-type Fluorides by the Deliberate Introduction of Excess Fluoride: Mg1–x Zr1+xF6+2x, x = 0.15, 0.30, 0.40, and 0.50

Journal Article · · Chemistry of Materials

Cubic ReO3-type fluorides often display negative or very low thermal expansion. However, they also typically undergo phase transitions upon cooling and/or modest compression, which are undesirable from the perspective of potential applications. Density measurements and total scattering data for Mg1–xZr1+xF6+2x, x = 0.15, 0.30, 0.40, and 0.50, indicate that the introduction of excess fluoride into cubic MgZrF6 is accompanied by the population of interstitial fluoride sites and the conversion of corner to edge shared coordination polyhedra. Unlike MgZrF6, no phase transitions are seen upon cooling these materials to 10 K, and the first high pressure phase transition in these compositions occurs at pressures much higher than that previously reported for MgZrF6 (0.37 GPa). The introduction of excess fluoride also provides for control of thermal expansion. Overall, for all of the compositions studied, negative thermal expansion is seen at the lowest temperature examined, and positive thermal expansion is observed at the highest temperature. The temperature at which zero thermal expansion occurs varies from ~150 K for x = 0.50 to ~500 K for x = 0.00. High pressure diffraction also indicates that increasing the amount of excess fluoride elastically stiffens the cubic ReO3 related structure and reduces the extent of pressure induced softening.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1524647
Journal Information:
Chemistry of Materials, Vol. 31, Issue 9; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (49)

Negative Thermal Expansion from 0.3 to 1050 Kelvin in ZrW2O8 journal April 1996
Negative thermal expansion in functional materials: controllable thermal expansion by chemical modifications journal January 2015
Two Decades of Negative Thermal Expansion Research: Where Do We Stand? journal June 2012
Mechanisms and Materials for NTE journal August 2018
Progress of Research in Negative Thermal Expansion Materials: Paradigm Shift in the Control of Thermal Expansion journal July 2018
Structure, Magnetism, and Tunable Negative Thermal Expansion in (Hf,Nb)Fe 2 Alloys journal August 2017
Giant Negative Thermal Expansion in Bonded MnCoGe-Based Compounds with Ni 2 In-Type Hexagonal Structure journal January 2015
Giant Negative Thermal Expansion in NaZn 13 -Type La(Fe, Si, Co) 13 Compounds journal July 2013
Giant negative thermal expansion in Ge-doped anti-perovskite manganese nitrides journal December 2005
The Role of Spontaneous Polarization in the Negative Thermal Expansion of Tetragonal PbTiO 3 -Based Compounds journal July 2011
Colossal negative thermal expansion in BiNiO3 induced by intermetallic charge transfer journal June 2011
Giant Negative Thermal Expansion in the Iron Perovskite SrCu3Fe4O12 journal June 2011
Exceptional Negative Thermal Expansion in Isoreticular Metal–Organic Frameworks journal June 2007
Phonons and anomalous thermal expansion behaviour in crystalline solids journal March 2018
Negative thermal expansion and associated anomalous physical properties: review of the lattice dynamics theoretical foundation journal May 2016
Pressure-induced amorphization of cubic Zr W 2 O 8 studied in situ and ex situ by synchrotron x-ray diffraction and absorption journal July 2005
Effects of composition on crystal structure, thermal expansion, and response to pressure in ReO3-type MNbF6(M = Mn and Zn) journal January 2019
Negative Thermal Expansion, Response to Pressure and Phase Transitions in CaTiF 6 journal August 2018
Composition, Response to Pressure, and Negative Thermal Expansion in M II B IV F 6 (M = Ca, Mg; B = Zr, Nb) journal January 2017
Solid solubility, phase transitions, thermal expansion, and compressibility in Sc1−Al F3 journal February 2015
Evolution of Negative Thermal Expansion and Phase Transitions in Sc 1-x Ti x F 3 journal February 2014
A cautionary tale on the use of GE-7031 varnish: low-temperature thermal expansion studies of ScF 3 journal April 2013
Negative thermal expansion and compressibility of Sc 1– x Y x F 3 (x≤0.25) journal December 2013
Pronounced Negative Thermal Expansion from a Simple Structure: Cubic ScF 3 journal November 2010
Controllable Thermal Expansion and Crystal Structure of (Fe1-xNix)ZrF6 Solid Solutions journal January 2018
Isotropic Zero Thermal Expansion and Local Vibrational Dynamics in (Sc,Fe)F 3 journal September 2017
Local structure and controllable thermal expansion in the solid solution (Mn 1−x Ni x )ZrF 6 journal January 2017
Lattice dynamics and anharmonicity of CaZrF6 from Raman spectroscopy and ab initio calculations journal September 2016
Atomic Linkage Flexibility Tuned Isotropic Negative, Zero, and Positive Thermal Expansion in MZrF 6 (M = Ca, Mn, Fe, Co, Ni, and Zn) journal October 2016
High-Curie - Temperature Ferromagnetism in (Sc,Fe)F 3 Fluorides and its Dependence on Chemical Valence journal July 2015
The heat capacities of thermomiotic ScF3 and ScF3–YF3 solid solutions journal February 2015
Negative Thermal Expansion Near the Precipice of Structural Stability in Open Perovskites journal November 2018
Negative thermal expansion near two structural quantum phase transitions journal December 2017
Large isotropic negative thermal expansion above a structural quantum phase transition journal October 2015
Localized Symmetry Breaking for Tuning Thermal Expansion in ScF 3 Nanoscale Frameworks journal March 2018
Size effects on negative thermal expansion in cubic ScF 3 journal July 2016
Tunable thermal expansion in framework materials through redox intercalation journal February 2017
The structure of cubic YbZrF7 journal October 1981
Tunable thermal expansion and magnetism in Zr-doped ScF 3 journal October 2016
Zero Thermal Expansion and Abrupt Amorphization on Compression in Anion Excess ReO 3 -Type Cubic YbZrF 7 journal April 2018
Isotropic Low Thermal Expansion over a Wide Temperature Range in Ti 1– x Zr x F 3+ x (0.1 ≤ x ≤ 0.5) Solid Solutions journal October 2018
The high-pressure, high-temperature equation of state of calcium fluoride, CaF 2 journal March 1993
EXPGUI , a graphical user interface for GSAS journal April 2001
Crystal structure of the βBaZr2F10 compound. Relations with the ReO3-type and the fluorozirconate glasses journal February 1988
High-temperature monoclinic α-SrHfF 6 , and isostructural α-SrZrF 6 : associating Hf 2 F 12 bipolyhedra and SrF 8 snub disphenoids journal January 2018
Structure du tétrafluorure de zirconium, ZrF4α journal September 1982
EosFit7c and a Fortran module (library) for equation of state calculations journal January 2014
Common origin of negative thermal expansion and other exotic properties in ceramic and hybrid materials journal June 2014
A phenomenological expression to describe the temperature dependence of pressure-induced softening in negative thermal expansion materials journal March 2014

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Perovskite-related ReO3-type structures journal January 2020