Results 161 to 170 of about 448,185 (251)

Preparation of soluble colorless poly(amide‐imide) films with high glass transition temperature and low coefficient of thermal expansion by coordination interaction of Li cations

Journal of Polymer Science, 2023
To meet the needs of high heat‐resistant and colorless polyimide (CPI) films, a series of poly(amide‐imide) (PAI) films were synthesized by copolymerization of 1,2,3,4‐cyclobutanetetracarboxylic dianhydride (CBDA), terephthaloyl chloride (TPC), 4,4 ...
Jinglei Xing, Ge Zhu, Xingzhong Fang, Guofei Chen   +3 more
semanticscholar   +1 more source

A prediction model of thermal expansion coefficient for cubic inorganic crystals by the bond valence model

Journal of Solid State Chemistry, 2021
On the basis of the bond valence model, a new prediction model of thermal expansion coefficient for cubic inorganic crystals using a simple formula is presented.
Xiao Liu, Hao Wang, Weimin Wang, Z. Fu
semanticscholar   +1 more source

Unexpected low thermal expansion coefficients of pentadiamond

Physical Chemistry Chemical Physics, 2022
Though pentadiamond is softer than diamond, the thermal expansion coefficients of pentadiamond are lower than those of diamond.
Mingqing Liao, Yi Wang, Fengjiang Wang, Jingchuan Zhu, Zi-Kui Liu   +4 more
openaire   +2 more sources

Coefficient of Thermal Expansion of Concrete

Concrete Journal, 2018
S. Miyazawa
openaire   +2 more sources

Density functional theory and machine learning guided search for RE 2 Si 2 O 7 with targeted coefficient of thermal expansion

Journal of The American Ceramic Society, 2020
Density functional theory (DFT) calculations and machine learning (ML) methods are used to establish a relationship between the crystal structures of rare-earth (RE) disilicates (RE 2 Si 2 O 7 ) and their coefficient of thermal expansion (CTE).
M. Ayyasamy, Jeroen A. Deijkers, H. Wadley, P. Balachandran   +3 more
semanticscholar   +1 more source

Thermal expansion coefficient of titanium casting

Journal of Oral Rehabilitation, 2001
A reliable measurement of the thermal expansion coefficient (α) value is required to achieve a positive thermal mismatch between metal and porcelain for porcelain‐fused to metal crowns. Heating rate and specimen conditions may significantly influence the α value and the effects of these factors were studied.
D, Low, T, Sumii, M, Swain
openaire   +2 more sources

A novel 3D structure with tunable Poisson’s ratio and tailorable coefficient of thermal expansion based on a tri-material triangle unit

, 2020
Auxetic materials and negative thermal expansion materials show great application potential in many important fields. In this paper, a novel three-dimensional truss structure with a tunable Poisson's ratio and tailorable coefficient of thermal expansion ...
Mingming Chen, Minghui Fu, Linhua Lan, S. Sheshenin   +3 more
semanticscholar   +1 more source

Ultraprecise Measurement of Thermal Coefficients of Expansion

Applied Optics, 1970
A novel method for determining thermal expansion coefficients has been devised. It is based on the dependence of Fabry-Perot resonances on the mirror separation. The expansion sample is formed into an etalon spacer, with highly reflecting endplates optically contacted to each end.
S F, Jacobs, J N, Bradford, J W, Berthold Iii   +2 more
openaire   +2 more sources

Numerical prediction of thermal conductivity and thermal expansion coefficient of glass fiber-reinforced polymer hybrid composites filled with hollow spheres

Journal of composite materials
The optimal performance of composites enriched with hollow spheres has been reported in contemporary literature, whereas their thermal properties have received less attention.
A. Moradi, R. Ansari, M. Hassanzadeh-Aghdam, J. Jamali   +3 more
semanticscholar   +1 more source