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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01 Jan 1979
TL;DR: In this paper, the expansion of the lattice can be calculated from a knowledge of two indepcndent coefficients a,, and ax, which refer respectively to the directions parallel and perpendicular to the principal trigonal axis; the corresponding expansion coefficient, ae, is in accordance with the relation stated by Voigt (1910), a 0 −a,, cos20 + a~ sin20.
Abstract: FOR crystals with trigonal structure, such as h~ematite, the linear thermal expansion coefficient is not independent of the direction in the lattice as in the case of isotropic crystals. The expansion of the lattice can, however, be calculated from a knowledge of two indepcndent coefficients a,, and ax, which refer respectively to the directions parallel and perpendicular to the principal trigonal axis; the corresponding expansion coefficient, ae, is in accordance with the relation stated by Voigt (1910), a 0 ---a,, cos20 + a~ sin20.
184 citations
183 citations
TL;DR: In this article, the thermal expansion of vitreous silica is shown to be particularly sensitive to thermal history values given for the linear coefficient α were determined relative to copper, and existing reference data for copper are discussed.
Abstract: Between 30 and 290 K the thermal expansion of vitreous silica is shown to be particularly sensitive to thermal history Values given for the linear coefficient α were determined relative to copper, and existing reference data for copper are discussed α for silicon has also been measured relative to copper from 55 K to room temperature Values of α at 283 K are reported for a number of samples of copper, and for Ag, Au, Al, Pt, Pd, MgO, NaCl and CaF2
183 citations
Book•
30 Jun 1999
TL;DR: In this article, Axes and Unit Cells in Crystals are discussed, as well as the manipulation of Thermodynamic Expressions (TEE) and their use in graph theory.
Abstract: Preface. Acknowledgments. 1. Introduction. 2. Basic Theory and Techniques. 3. Measurement Techniques. 4. Fluids. 5. Non-metals. 6. Metals. 7. Polycrystals, Composites and Aggregates. 8. Cryocrystals, Clathrates and Curiosities. 9. Conclusion. A: Axes and Unit Cells in Crystals. B: Manipulating Thermodynamic Expressions. C: Tables. D: Commonly Used Symbols.
183 citations
TL;DR: In this paper, a finite element analysis code is used to predict the thermal component of the stress in planar SOFCs during steady state and transient operation (heat-up, start-up and shut-down).
182 citations