Topic
Thermal expansion
About: Thermal expansion is a research topic. Over the lifetime, 21040 publications have been published within this topic receiving 349407 citations. The topic is also known as: heat expansion.
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TL;DR: In this paper, the authors investigated the thermal properties of carbon nanotubes (CNTs) reinforced composites and found that the CTE of Al is higher compared to those of semiconductor materials.
83 citations
TL;DR: In this paper, the authors measured the thermal expansion of β-Mg2SiO4 (modified spinel; orthorhombic symmetry) by the X-ray powder diffraction method in the temperature range between 20°C and 800°C.
Abstract: Thermal expansion of β-Mg2SiO4 (modified spinel; orthorhombic symmetry) was measured by the X-ray powder diffraction method in the temperature range between 20°C and 800°C. Gruneisen's theory of thermal expansion was applied to the linear and volume expansion data, and thermal expansion coefficients were obtained to be αa=9.14, αb=5.46, αc=5.92, and αv=20.6 in unit of 10-6/K, at 293K. Gruneisen's parameter γG=1.26 was obtained by assuming the Debye temperature to be 952K. The magnitude of volume expansion coefficient of β-Mg2SiO4 is located between those of γ- and α-phases. β-Mg2SiO4 is found to be a significantly anisotropic material both in thermal expansion and elasticity.
83 citations
TL;DR: In this paper, the authors used a ceramic fiber for the sealing material to improve the endurance of solid oxide fuel cell (SOFC) against thermal cycles by reducing the stress caused by the difference in thermal expansion coefficients of alloy separator and electrolyte.
83 citations
TL;DR: In this article, a variety of Al2O3/Al CMCs with an interpenetrating network structure were produced using a pressure infiltration technique, and the authors investigated the thermal expansion behavior and internal residual strains in metal reinforced ceramic matrix composites.
83 citations
TL;DR: The La2W2−xMoxO9 series has two polymorphs and the low-temperature phase (α) transforms to the high temperature form (β) at 1077°C, and the influence of the W/Mo substitution in this phase transition has been investigated by DTA as discussed by the authors.
82 citations