scholarly journals Study of Negative Thermal Expansion and Shift in Phase Transition Temperature in Ti4+- and Sn4+-Substituted ZrW2O8Materials

2008 ◽  
Vol 47 (2) ◽  
pp. 736-741 ◽  
Author(s):  
Klaartje De Buysser ◽  
Isabel Van Driessche ◽  
Bart Vande Putte ◽  
Paul Vanhee ◽  
Joseph Schaubroeck ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Negative Thermal Expansion

Phase transition temperature and negative thermal expansion of Sc-substituted In2(MoO4)3 ceramics

2020 ◽  
Vol 55 (14) ◽  
pp. 5730-5740
Author(s):  
Zhiping Zhang ◽  
Yuenan Wang ◽  
Weikang Sun ◽  
Xiuyun Zhang ◽  
Hongfei Liu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Negative Thermal Expansion

A Linear Scaling Law for Predicting Phase Transition Temperature via Averaged Effective Electronegativity Derived from A2M3O12-based Compounds

2021 ◽  
Author(s):  
Huanli Yuan ◽  
Chunyan Wang ◽  
QiLong Gao ◽  
Gaojie Zeng ◽  
Juan Guo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Scaling Law ◽  
Negative Thermal Expansion ◽  
Linear Scaling ◽  
Ion Conduction

Chemical flexibility of A2M3O12-based compounds enables design of materials with versatile functionalities such as ferroelastic switching, ion conduction and negative thermal expansion (NTE) above ferroelastic transition temperature (Tt), promising for...

Tailored phase transition temperature and negative thermal expansion of Sc-substituted Al2Mo3O12synthesized by a co-precipitation method

2019 ◽  
Vol 6 (7) ◽  
pp. 1842-1850 ◽  
Author(s):  
Hongfei Liu ◽  
Weikang Sun ◽  
Zhiping Zhang ◽  
Xiuyun Zhang ◽  
Yuxue Zhou ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Negative Thermal Expansion ◽  
Precipitation Method ◽  
Temperature Range ◽  
Co Precipitation

Sc3+substitution reduces theTcof Al2Mo3O12and makes it show stable negative thermal expansion in a wider temperature range.

Impact of thermal expansion of substrates on phase transition temperature of VO2 films

2014 ◽  
Vol 116 (12) ◽  
pp. 123510 ◽  
Author(s):  
Joe Sakai ◽  
Mustapha Zaghrioui ◽  
Masaaki Matsushima ◽  
Hiroshi Funakubo ◽  
Kunio Okimura
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature

Solubility limit of Zn2+ in low thermal expansion ZrMgMo3O12 and its influence on phase transition temperature

2020 ◽  
Vol 46 (3) ◽  
pp. 3979-3983 ◽  
Author(s):  
Alison Madrid ◽  
Patricia I. Pontón ◽  
Flávio Garcia ◽  
Michel B. Johnson ◽  
Mary Anne White ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Solubility Limit ◽  
Low Thermal Expansion

Rapid In Situ Reactive Sintering and Properties of ZrO2-ZrW2O8 Composites

2012 ◽  
Vol 535-537 ◽  
pp. 42-46
Author(s):  
Xiang Yang Guo ◽  
Chun Zhen Fan ◽  
Xian Sheng Liu ◽  
Wen Bo Song ◽  
Chun Xiao Cheng ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
High Density ◽  
Reactive Sintering ◽  
Mass Ratio ◽  
Sintering Additive

ZrO2-ZrW2O8 diphasic composites with controllable coefficients of thermal expansion (CTEs) are synthesized by rapid in-situ reactive sintering with ZrO2 and WO3 as reactants. High density of ZrO2-ZrW2O8 composites without decomposition of ZrW2O8 is obtained with Y2O3 sintering additive. The CTEs of specimen with ZrO2 to ZrW2O8 mass ratio 1:1.0, 1:1.3, 1:1.5 and 1:2.0 are measured to be about 1.20×10−6, 0.31×10−6, -0.78×10−6 and -1.13×10−6 K−1, respectively. Raman mappings demonstrate homogenous dispersions of ZrO2 and ZrW2O8 in the ZrO2-ZrW2O8 composites. In addition to the role as sintering additive, some Y3+ cations enter the lattice to substitute Zr4+ in ZrW2O8, leading to an increase in disorder and a decrease in phase transition temperature of ZrW2O8 in the composites.

The structure of membranes and membrane proteins embedded in amorphous ice

1992 ◽  
Vol 50 (1) ◽  
pp. 432-433
Author(s):  
Uwe Lücken ◽  
Joachim Jäger
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Membrane Proteins ◽  
Phase Transition Temperature ◽  
Lipid Vesicles ◽  
Freezing Stress ◽  
Amorphous Ice ◽  
Different Temperatures ◽  
Band Pass ◽  
Lipid Polymorphism

TEM imaging of frozen-hydrated lipid vesicles has been done by several groups Thermotrophic and lyotrophic polymorphism has been reported. By using image processing, computer simulation and tilt experiments, we tried to learn about the influence of freezing-stress and defocus artifacts on the lipid polymorphism and fine structure of the bilayer profile. We show integrated membrane proteins do modulate the bilayer structure and the morphology of the vesicles.Phase transitions of DMPC vesicles were visualized after freezing under equilibrium conditions at different temperatures in a controlled-environment vitrification system. Below the main phase transition temperature of 24°C (Fig. 1), vesicles show a facetted appearance due to the quasicrystalline areas. A gradual increase in temperature leads to melting processes with different morphology in the bilayer profile. Far above the phase transition temperature the bilayer profile is still present. In the band-pass-filtered images (Fig. 2) no significant change in the width of the bilayer profile is visible.

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