Large Negative Thermal Expansion and Anomalous Behavior on Compression in Cubic ReO3-Type AIIBIVF6: CaZrF6 and CaHfF6
CaZrF6 and CaHfF6 display much stronger negative thermal expansion (NTE)(α L100 K∼−
18 and− 22 ppm· K–1, respectively) than ZrW2O8 and other corner-shared framework …
18 and− 22 ppm· K–1, respectively) than ZrW2O8 and other corner-shared framework …
Negative thermal expansion and compressibility of Sc1–xYxF3 (x≤ 0.25)
CR Morelock, BK Greve, LC Gallington… - Journal of Applied …, 2013 - pubs.aip.org
Scandium fluoride displays isotropic negative thermal expansion (NTE) from at least 10 to
1100 K and retains a cubic ReO 3-type structure over this range; the NTE is most …
1100 K and retains a cubic ReO 3-type structure over this range; the NTE is most …
Solid solubility, phase transitions, thermal expansion, and compressibility in Sc1− xAlxF3
With the goal of thermal expansion control, the synthesis and properties of Sc 1− x Al x F 3
were investigated. The solubility limit of AlF 3 in ScF 3 at~ 1340 K is~ 50%. Solid solutions …
were investigated. The solubility limit of AlF 3 in ScF 3 at~ 1340 K is~ 50%. Solid solutions …
Composition, Response to Pressure, and Negative Thermal Expansion in MIIBIVF6 (M = Ca, Mg; B = Zr, Nb)
BR Hester, JC Hancock, SH Lapidus… - Chemistry of …, 2017 - ACS Publications
CaZrF6 has recently been shown to combine strong negative thermal expansion (NTE) over
a very wide temperature range (at least 10–1000 K) with optical transparency from mid-IR …
a very wide temperature range (at least 10–1000 K) with optical transparency from mid-IR …
Synthesis of Defect Perovskites (He2–x□x)(CaZr)F6 by Inserting Helium into the Negative Thermal Expansion Material CaZrF6
BR Hester, AM Dos Santos, JJ Molaison… - Journal of the …, 2017 - ACS Publications
Defect perovskites (He2–x□ x)(CaZr) F6 can be prepared by inserting helium into CaZrF6 at
high pressure. They can be recovered to ambient pressure at low temperature. There are no …
high pressure. They can be recovered to ambient pressure at low temperature. There are no …
[PDF][PDF] Reducing the background of ultra-low-temperature X-ray diffraction data through new methods and advanced materials
CJ McMonagle, MR Probert - Journal of Applied Crystallography, 2019 - journals.iucr.org
New methods and advanced materials that significantly reduce the background when
collecting single-crystal X-ray diffraction data at ultra-low temperatures using a closed-cycle …
collecting single-crystal X-ray diffraction data at ultra-low temperatures using a closed-cycle …
Orientational order-dependent thermal expansion and compressibility of ZrW 2 O 8 and ZrMo 2 O 8
The role of MO4 (M= W, Mo) orientational disorder in the thermal expansion and
compressibility of ZrW2O8 and ZrMo2O8 was investigated via in situ powder X-ray diffraction …
compressibility of ZrW2O8 and ZrMo2O8 was investigated via in situ powder X-ray diffraction …
Dramatic softening of the negative thermal expansion material HfW2O8 upon heating through its WO4 orientational order-disorder phase transition
HfW 2 O 8 undergoes a dramatic softening where the average bulk modulus (P= 52–414
MPa) drops from 69 GPa at 298 K to 48 GPa at 430 K as the temperature of the WO 4 …
MPa) drops from 69 GPa at 298 K to 48 GPa at 430 K as the temperature of the WO 4 …
A high-pressure and high-temperature gas-loading system for the study of conventional to real industrial sized samples in catalysed gas/solid and liquid/solid …
J Andrieux, C Chabert, A Mauro, H Vitoux… - Journal of Applied …, 2014 - journals.iucr.org
A high-pressure–high-temperature gas-loading system (GLS) is described for combined
operando X-ray diffraction and mass spectrometry investigations during catalysed gas/solid …
operando X-ray diffraction and mass spectrometry investigations during catalysed gas/solid …
Controlling the Phase Behavior of Low and Negative Thermal Expansion ReO3-Type Fluorides using Interstitial Anions: Sc1–xZrxF3+x
Density measurements suggest that the incorporation of ZrF4 into the cubic ReO3-type
structure of Sc1–x Zr x F3+ x is associated with the creation of anion interstitials. X-ray total …
structure of Sc1–x Zr x F3+ x is associated with the creation of anion interstitials. X-ray total …