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 effect of saturating fluids, structure (size, shape, and distribution of the pores), porosity, and mineralogical composition on temperature and porosity dependences of the ETC of fluid-saturated rocks was discussed.
76 citations
TL;DR: In this paper, the thermal expansion coefficients of wurtzite structure InN are evaluated within the constraints of a basic model and predicted for an extended temperature range, together with the elastic constants provided earlier, this information gives a basis for optimizing thin film growth conditions and thereby reducing the residual stresses in group-III-nitride thin-film devices.
Abstract: The thermal expansion coefficients of wurtzite structure InN are evaluated within the constraints of a basic model and predicted for an extended temperature range. Together with the elastic constants provided earlier, this information gives a basis for optimizing thin-film growth conditions and thereby reducing the residual stresses in group-III-nitride thin-film devices.
76 citations
TL;DR: In this paper, an experimental method is proposed which enables the determination of processing-induced intrinsic stresses, elastic modulus, and coefficients of thermal expansion of surface coatings of homogeneous and graded compositions.
76 citations
TL;DR: The compositional dependence of thermal expansion behaviour in 19 different perovskite-like metal-organic frameworks (MOFs) of composition is studied using variable-temperature X-ray powder diffraction measurements, and the magnitude of this response is shown to be a function of A(I) and M(II) cation radii, as well as the molecular anisotropy of A
Abstract: The compositional dependence of thermal expansion behaviour in 19 different perovskite-like metal-organic frameworks (MOFs) of composition [A(I)][M(II)(HCOO)3] (A = alkylammonium cation; M = octahedrally-coordinated divalent metal) is studied using variable-temperature X-ray powder diffraction measurements. While all systems show essentially the same type of thermomechanical response-irrespective of their particular structural details-the magnitude of this response is shown to be a function of A(I) and M(II) cation radii, as well as the molecular anisotropy of A(I). Flexibility is maximised for large M(II) and small A(I), while the shape of A(I) has implications for the direction of framework hingeing.
76 citations
TL;DR: In this paper, the crystal structure of high cordierite and that of high-cordierite solid solutions containing either Mn or Ga or Ge were refined and the structural changes caused by substitutions and the characteristic features of deformations of each T1O4, T2O4 tetrahedron and MO6 octahedron were clarified.
Abstract: The crystal structure of high cordierite and that of high cordierite solid solutions containing either Mn or Ga or Ge were refined. The structural changes caused by substitutions and the characteristic features of deformations of each T1O4, T2O4 tetrahedron and MO6 octahedron were clarified. Thorough crystal chemical considerations led to a conclusion that the structure of Mn-bearing solid solution at room temperature may be regarded as a model structure of high cordierite at an elevated temperature. On the basis of the thermal expansion mechanism derived from this consideration, the thermal expansion behavior of the solid solutions is presented.
76 citations