Results 251 to 260 of about 167,613,522 (302)
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Coefficient of thermal expansion of AlMgB14
Scripta Materialia, 2002Abstract The coefficient of thermal expansion (COTE) of AlMgB14 was measured by dilatometry and by high temperature X-ray diffraction using synchroton radiation. The COTE over the temperature range 298 K to 1373 K was determined to be 9×10−6 K−1, which is relatively close to the value of 8.3×10−6 K−1 for pure B.
A.M. Russell +3 more
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A thermoelastic method to measure the thermal expansion coefficient
Materials and Structures, 1986In two different laboratories, measurements are performed of the thermal expansion coefficient of several mortar specimens, based on the thermoelastic effect. The temperature of the sample surface is recorded while the specimens undergo a uniaxial adiabatic compression.
BEGHI, MARCO +3 more
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Measurement of thermal expansion coefficient of human teeth
Australian Dental Journal, 1989AbstractThe coefficient of thermal expansion of specimens from 60 freshly extracted human teeth were measured over the range 10–80°C using a dilatometer. The coefficient increased rapidly above 50°C, but there was no significant variation with tooth age between 10 and 70 years.
H C, Xu, W Y, Liu, T, Wang
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Peridynamics for Predicting Thermal Expansion Coefficient of Graphene
2019 IEEE 69th Electronic Components and Technology Conference (ECTC), 2019This study presents an investigation of thermal fluctuations of a graphene layer by using peridynamics (PD). The stored energy in the graphene layer due to the fluctuations is expressed in a quadratic form in terms of the stiffness matrix under von Karman assumptions.
Madenci, Erdogan +2 more
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Thermal coefficients of the expansion and refractive index in YAG
Applied Optics, 1999The thermal expansion coefficient and dn/dT are measured by interferometry techniques in undoped YAG below 300 K. The thermal expansion coefficient at 125 K is measured to be 2.70 x 10(-6) K(-1) and dn/dT at 633 nm is 2.5 x 10(-6) K(-1), compared with 7 x 10(-6) K(-1) and 9 x 10(-6) K(-1) for these quantities at 300 K.
R, Wynne, J L, Daneu, T Y, Fan
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Investigation of the coefficient of thermal expansion in nanocrystalline diamond films
Diamond and Related Materials, 2009Abstract Nanocrystalline diamond films are a promising class of nanomaterials with tunable properties. An especially appealing field of application for NCD are nitrogen doped semiconducting films. The residual stress in the films is an important film property directly influencing the adhesion of the film on the substrate and thus the film ...
Wöhrl, Nicolas +3 more
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Calculation of thermal expansion coefficient of glasses
Journal of Non-Crystalline Solids, 1976Abstract Thermal expansion of oxide glasses has been theoretically studied to derive an equation for the calculation of the thermal expansion coefficient of glass from chemical composition. Gruneisen's constant may be correlated with packing density and a ratio of cation-to-anion radius and, considering the packing density and dissociation energy per
Akio Makishima, J.D. Mackenzie
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Coefficient of thermal expansion of stacked auxetic and negative thermal expansion laminates
physica status solidi (b), 2010AbstractAnalytical expressions for the in‐plane and out‐of‐plane coefficients of thermal expansion for laminates with isotropic laminas are presented herein based on (i) zero net force on the laminate edges, (ii) equal displacement of the lamina edges, and (iii) Hooke's law in three dimensions.
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Negative thermal expansion in magnetic materials
Progress in Materials Science, 2021Shiqing Deng, Kun Lin, Jun Chen
exaly