High temperature x-ray diffraction study on phase transformation and lattice thermal expansion of mercury indium telluride crystals

Thermal expansion of (Sr1−x , K2x )Zr4(PO4)6 (SrKZP) (with x = 0–1) ceramic was investigated using both a dilatometer and a high-temperature X-ray diffractometer. The coefficients of thermal expansion (CTEs) of the SrKZP ceramic measured by the dilatometer demonstrate a similar trend as those from high-temperature X-ray diffraction. Both measurements show an ultra-low CTE at x = 0.5; nevertheless, this composition shows significant lattice thermal-expansion anisotropy (TEA), while the minimum TEA appears with composition x = 0.2. Although it possessed a sufficient degree of TEA, the x = 0.5 composition showed no visible microcracks or negligible microcracks over a grain size as large as 15 μm. A transition of space group from R{\bar 3} to R{\bar 3}c with composition between x = 0.3 and x = 0.5 has been observed. The crystal structure of the SrKZP ceramic with possible occupations of strontium and/or potassium within the lattice in relation to their influence on the CTEs is proposed.

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High-Temperature X-ray Diffraction Study of the Thermal Expansion and Stability of Nanocrystalline VB2

Inorganic Materials ◽

10.1134/s0020168519100078 ◽

2019 ◽

Vol 55 (11) ◽

pp. 1111-1117

Author(s):

D. Yu. Kovalev ◽

N. Yu. Khomenko ◽

S. P. Shilkin

Keyword(s):

Thermal Expansion ◽

High Temperature ◽

Diffraction Study ◽

X Ray Diffraction ◽

X Ray

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Behaviors of the Zr–1.0Sn–0.39Nb–0.31Fe–0.05Cr Alloy at High Temperature

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.399-401.80 ◽

2011 ◽

Vol 399-401 ◽

pp. 80-84

Author(s):

Yi Yuan Tang ◽

Jie Li Meng ◽

Kai Lian Huang ◽

Jian Lie Liang

Keyword(s):

Thermal Expansion ◽

Phase Transformation ◽

High Temperature ◽

Oxide Film ◽

Room Temperature ◽

X Ray Diffraction ◽

X Ray ◽

Thin Oxide Film ◽

Thermal Expansion Coefficients ◽

Expansion Coefficients

Phase transformation of the Zr-1.0Sn-0.39Nb-0.31Fe-0.05Cr alloy was investigated by high temperature X-ray diffraction (XRD). The XRD results revealed that the alloy contained two precipitates at room temperature, namely β-Nb and hexagonal Zr(Nb,Fe,Cr,)2. β-Nb was suggested to dissolve into the α-Zr matrix at the 580oC. Thin oxide film formed at the alloy’s surface was identified as mixture of the monoclinic Zr0.93O2and tetragonal ZrO2, when the temperature reached to 750oC and 850 oC. The thermal expansion coefficients of αZr in this alloy was of αa = 8.39×10-6/°C, αc = 2.48×10-6/°C.

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X-ray diffraction study on the thermal expansion behavior of cellulose Iβ and its high-temperature phase

Polymer Degradation and Stability ◽

10.1016/j.polymdegradstab.2010.01.034 ◽

2010 ◽

Vol 95 (8) ◽

pp. 1330-1334 ◽

Cited By ~ 46

Author(s):

Masahisa Wada ◽

Ritsuko Hori ◽

Ung-Jin Kim ◽

Sono Sasaki

Keyword(s):

Thermal Expansion ◽

High Temperature ◽

Diffraction Study ◽

High Temperature Phase ◽

Temperature Phase ◽

X Ray Diffraction ◽

Thermal Expansion Behavior ◽

X Ray ◽

Expansion Behavior ◽

Cellulose Iβ

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A high-temperature X-ray diffraction study of the NiO–Li2O system

Journal of Applied Crystallography ◽

10.1107/s0021889871007003 ◽

1971 ◽

Vol 4 (4) ◽

pp. 293-297 ◽

Cited By ~ 32

Author(s):

C. J. Toussaint

Keyword(s):

Crystal Structure ◽

Phase Diagram ◽

Thermal Expansion ◽

High Temperature ◽

Transition Temperature ◽

Diffraction Study ◽

Room Temperature ◽

X Ray Diffraction ◽

X Ray ◽

Crystallographic Study

A crystallographic study of the system Ni2+ 1−2x Ni3+ x Li+ x O has been carried out. The crystal structure of the material in the range 0≤x≤0.4 at room temperature and up to 1000°C has been studied. The principal coefficients of thermal expansion and the phase diagram are given. The structural rhombohedral → face-centred cubic transition temperature of NiO has been determined.

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