Results 21 to 30 of about 106,077 (311)

Study on typical temperature effect mechanism of multi-component coal during low-temperature thermal expansion

Case Studies in Thermal Engineering, 2023
Liquid Nitrogen (LN2) cold shock on coal reservoir is a promising technology, and its complex fracture networks are directly related to the temperature effect of each component in coal caused by temperature change.
Yuzhou Cong, Cheng Zhai, Xu Yu, Jizhao Xu, Yong Sun, Wei Tang, Yangfeng Zheng, Jianguo Wu   +7 more
doaj   +1 more source

Heat Transfer and Thermal Expansion of Coefficient EP -(MWCNT/x-TiO2)Nanocomposites

Journal of Engineering, 2018
The thermal properties (thermal transfer and thermal expansion coefficient) of the enhanced epoxy resin (MWCNT / x-TiO2) were studied by weight ratios with the values (0%, 3%, 5%, 7% and 10%) and a constant ratio of 3% of MWCNT. The ultrasonic technology
Dhilal Amer Sabar, Fadhil K. Farhan
doaj   +1 more source

Influence of heat treatments on the tensile properties and thermal expansion behavior of Fe-Ni wire

工程科学学报, 2018
Although Fe-Ni wires have numerous potential applications, the effect of heat treatments on the microstructures and properties of Fe-Ni wires is currently unclear.
CHEN Bao-an, ZHANG Qiang, WANG Rui-hong, HAN Yu, DING Yi, ZHU Zhi-xiang, CHEN Xin, YANG Chang-long, ZHANG Hong-yu   +8 more
doaj   +1 more source

Prediction of concrete coefficient of thermal expansion and other properties using machine learning

Construction and Building Materials, 2019
The coefficient of thermal expansion (CTE) significantly influences the performance of concrete. However, CTE measurements are both time consuming and expensive; therefore, CTE is often predicted from empirical equations based on historical data and ...
Vanessa Nilsen, Le T. Pham, Michael Hibbard, Adam Klager, S. Cramer, D. Morgan   +5 more
semanticscholar   +1 more source

Tailoring the coefficient of thermal expansion of ternary nickel alloys through compositional control and non-contact measurements

Journal of Alloys and Compounds, 2020
The majority of microelectromechanical systems (MEMS) are made of silicon, however, future applications will be used in extreme environments, especially at elevated temperatures, and require materials with enhanced properties.
Gianna M. Valentino, J. Krogstad, T. Weihs, K. Hemker   +3 more
semanticscholar   +1 more source

Elastic modulus and coefficient of thermal expansion of piezoelectric Al1−xScxN (up to x = 0.41) thin films

APL Materials, 2018
Aluminum scandium nitride (Al1−xScxN with x = 0–0.41) thin films were deposited by reactive pulsed-DC magnetron sputtering on Si(001) and Al2O3(0001) substrates. X-ray diffraction indicated high degree of c-axis orientation in all the films, and based on
Yuan Lu, M. Reusch, N. Kurz, A. Ding, Tim Christoph, M. Prescher, L. Kirste, O. Ambacher, A. Žukauskaitė   +8 more
semanticscholar   +1 more source

The influence of mortar microstructure on its thermal expansion coefficient

Journal of Civil Engineering and Management, 2003
Thermal strain is one of the factors causing additional stresses in a composite structure. It is necessary to calculate the coefficient of thermal expansion in evaluating thermal strains.
Darius Zabulionis, Gediminas Marčiukaitis   +1 more
doaj   +1 more source

Coefficient of thermal expansion of cementitious mortars: new testing methodology [PDF]

Revista IBRACON de Estruturas e Materiais
Given the inherent porosity of cementitious materials, fluctuations in temperature disrupt the hygrothermal equilibrium, thereby influencing the accuracy of the coefficient of thermal expansion (CTE) measurements.
Luan Reginato, Rafaela Goulart Gomes Oliveira, Fábio Luiz Willrich   +2 more
doaj   +1 more source

Effect of B2O3 content on the structure and properties of SiO2–B2O3–Al2O3–Na2O system ceramic binder

Jin'gangshi yu moliao moju gongcheng, 2022
The SiO2–B2O3–Al2O3–Na2O system glass samples and the ceramic binder samples with different B2O3 contents were prepared. The density and the microhardness of different glass samples, the bending strength, the micro morphology and the thermal expansion ...
Zhao WANG, Sankui XU, Wei HUANG, Tianbing XU, Ping HAN, Guojin YAN, Zhaoqi CHEN, Tanyang WU   +7 more
doaj   +1 more source

Analysis of the Thermal Expansion Coefficient of Glass- and Carbon-Fibre-Reinforced Composites

Advances in Mechanical and Materials Engineering
With the development of manufacturing processes, an increase in the importance of metal-fibre composites in materials engineering is observed. These are materials consisting of appropriately arranged layers of metal and various types of fibres.
Romuald Fejkiel, Krystian Skwara
doaj   +1 more source