Results 11 to 20 of about 151,392 (262)

Thermal Expansion of Triaxially Stressed Mudstone at Elevated Temperatures up to 400°C

open access: yesAdvances in Materials Science and Engineering, 2020
In order to study the thermal deformation of the rock that surrounds underground engineering projects with elevated temperatures (e.g., underground coal gasification, coal in situ pyrolysis, in situ oil and gas extraction from oil shale, geothermal ...
Zi-jun Feng   +4 more
doaj   +1 more source

On the switching between negative and positive thermal expansion in framework materials

open access: yesMaterials Research Letters, 2019
The control of thermal expansion represents a challenge in materials design. This work shows that the length of the lattice parameter is a key element for controlling thermal expansion. By varying the lattice parameter through external pressure, chemical
Andrea Sanson
doaj   +1 more source

A Modified Kerner Model to Predict the Thermal Expansion Coefficient of Multi-Phase Reinforced Composites Al6092/SiC/LAS [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
In this work, a new supplementary formula was introduced to modify the Kerner model. This supplementary formula enable the Kerner model to predict the thermal expansion coefficient of multi-phase reinforced composites by normalization of the thermal ...
Shihao Zhang, Qinglin Hou, H.Y. Jiang
doaj   +1 more source

Thermal Expansion of ZrO2-20 mol% Gd2O3 [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The thermal expansion of a ZrO2-20 mol% Gd2O3 pellet has been systematically investigated using a thermo-mechanical analyzer in the temperature range of 293-1773 K.
Kweonho Kang   +3 more
doaj   +1 more source

Elastic mechanics solution of thermal expansion of bi-material curved beam and its application to negative thermal expansion metamaterials

open access: yesScientific Reports, 2022
Thermal stress impacts various engineering fields significantly, such as aerospace and precision instruments. This adverse effect can be greatly reduced, if not eliminated, by the application of micro-thermal expansion materials, and bi-material beams ...
Jingxiang Huang   +2 more
doaj   +1 more source

Thermal expansion, electrical conductivity and hardness of Mn3Zn0.5Sn0.5N/Al composites

open access: yesScience and Engineering of Composite Materials, 2018
Mn3Zn0.5Sn0.5N/Al composites were successfully prepared by sintering at 623 K and 723 K. It is found that the thermal expansion of Al is effectively decreased with the addition of negative thermal expansion material Mn3Zn0.5Sn0.5N, which plays the role ...
Miao Jinjin   +8 more
doaj   +1 more source

Tests and Analysis on Thermal Expansion Behaviour of Steel Strand used in Prestressed Concrete Structure under Low Temperatures

open access: yesInternational Journal of Concrete Structures and Materials, 2018
This paper presents the results of the tests and analysis on the coefficient of thermal expansion for the steel strand under combined low temperatures and prestressing forces.
Jian Xie, Jia-Bao Yan
doaj   +1 more source

Experimental Study on Thermal Expansion Behavior of Concrete under Three-Dimensional Stress

open access: yesAdvances in Civil Engineering, 2021
Concrete is widely used in underground engineering and bears three-dimensional stress transmitted by overlying load. When a fire occurs, the thermal expansion of concrete structure under such stress state is different from that under stress-free state ...
Zhipeng Yu   +5 more
doaj   +1 more source

Fundamentals of Thermal Expansion and Thermal Contraction

open access: yesMaterials, 2017
Thermal expansion is an important property of substances. Its theoretical prediction has been challenging, particularly in cases the volume decreases with temperature, i.e., thermal contraction or negative thermal expansion at high temperatures. In this paper, a new theory recently developed by the authors has been reviewed and further examined in the ...
Zi-Kui Liu, Shun-Li Shang, Yi Wang
openaire   +2 more sources

Auxetic-Inspired Honeycomb Macrostructures With Anomalous Tailormade Thermal Expansion Properties Including “Negative” Heat-Shrinking Characteristics

open access: yesFrontiers in Materials, 2021
Negative thermal expansion (NTE) materials and structures exhibit the anomalous property of shrinking rather than expanding when heated. This work examines the potential of multi-material planar re-entrant and non-re-entrant honeycombs to exhibit ...
James N. Grima-Cornish   +4 more
doaj   +1 more source

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