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.

MAX Phases: Properties of Machinable Ternary Carbides and Nitrides

Abstract: INTRODUCTION Introduction History of the MAX Phases STRUCTURE, BONDING, AND DEFECTS Introduction Atom Coordinates, Stacking Sequences, and Polymorphic Transformations Lattice Parameters, Bond Lengths, and Interlayer Thicknesses Theoretical Considerations To Be or Not to Be Distortion of Octahedra and Trigonal Prisms Solid Solutions Defects Summary and Conclusions ELASTIC PROPERTIES, RAMAN AND INFRARED SPECTROSCOPY Introduction Elastic Constants Young's Modulus and Shear Modulus Poisson's Ratios Bulk Moduli Extrema in Elastic Properties Effect of Temperature on Elastic Properties Raman Spectroscopy Infrared Spectroscopy Summary and Conclusions THERMAL PROPERTIES Introduction Thermal Conductivities Atomic Displacement Parameters Heat Capacities Thermal Expansion Thermal Stability Summary and Conclusions ELECTRONIC, OPTICAL, AND MAGNETIC PROPERTIES Introduction Electrical Resistivities, Hall Coefficients, and Magnetoresistances Seebeck Coefficients, Theta Optical Properties Magnetic Properties Superconducting Properties Summary and Conclusions OXIDATION AND REACTIVITY WITH OTHER GASES Introduction Ti3SiC2 Tin+1AlXn Solid Solutions between Ti3AlC2 and Ti3SiC2 Cr2AlC Nb2AlC and (Ti0.5,Nb0.5)2AlC Ti2SC V2AlC and (Ti0.5,V0.5)2AlC Ti3GeC2 and Ti3(Si,Ge)C2 Ta2AlC Ti2SnC, Nb2SnC, and Hf2SnC Ti2InC, Zr2InC, (Ti0.5, Hf0.5)2InC, and (Ti0.5,Zr0.5)2InC Sulfur Dioxide, SO2 Anhydrous Hydrofluoric, HF, Gas Chlorine Gas Summary and Conclusions Appendix CHEMICAL REACTIVITY Introduction Diffusivitiy of M and A Atoms Reactions with Si, C, Metals, and Intermetallics Reactions with Molten Salts Reactions with Common Acids and Bases Summary and Conclusions DISLOCATIONS, KINKING NONLINEAR ELASTICITY, AND DAMPING Introduction Dislocations and Their Arrangements Kink Band Formation in Crystalline Solids Incipient Kink Bands Microscale Model for Kinking Nonlinear Elasticity Experimental Verification of the IKB Model Effect of Porosity Experimental Evidence for IKBs Why Microcracking Cannot Explain Kinking Nonlinear Elasticity The Preisach - Mayergoyz Model Damping Nonlinear Dynamic Effects Summary and Conclusions MECHANICAL PROPERTIES: AMBIENT TEMPERATURE Introduction Response of Quasi-Single Crystals to Compressive Loads Response of Polycrystalline Samples to Compressive Stresses Response of Polycrystalline Samples to Shear Stresses Response of Polycrystalline Samples to Flexure Stresses Response of Polycrystalline Samples to Tensile Stresses Hardness Fracture Toughness and R-Curve Behavior Fatigue Resistance Damage Tolerance Micromechanisms Responsible for High K1c, R-Curve Behavior, and Fatigue Response Thermal Sock Resistance Strain Rate Effects Solid Solution Hardening and Softeing Machinability Summary and Conclusions MECHANICAL PROPERTIES: HIGH TEMPERATURES Introduction Plastic Anisotropy, Internal Stresses, and Deformation Mechanisms Creep Response to Other Stress States Summary and Conclusions EPILOGUE Outstanding Scientific Questions MAX Phase Potential Applications Forming Processes and Sintering Outstanding Technological Issues Some Final Comments INDEX

Effect of temperature

Abstract: Methods for measuring the effects of temperature on rubber, both in the short and long term, are described. This includes thermal expansion, glass transition, tests for low temperature resistance and thermal ageing.

Calculated thermal properties of metals.

Abstract: The thermal properties of the 14 nonmagnetic cubic metals through the 4d transition series are derived from first-principles electronic-structure calculations coupled with a Debye treatment of the vibrating lattice. Debye temperatures and Gr\"uneisen constants are derived from an analysis of the compressional characteristics of rigid-lattice binding curves and are used to define the contribution of the lattice vibrations to the free energy. A minimization of the resulting free energy with respect to volume yields temperature-dependent lattice separations and coefficients of thermal expansion. Theoretical values of cohesive energies, equilibrium lattice separations, bulk moduli, Debye temperatures, Gr\"uneisen constants, and coefficients of thermal expansion are derived directly from computed electronic-structure results. Good agreement with experiment is found for all computed quantities.

Thermal expansion of some diamondlike crystals

Abstract: The thermal expansion of AlN, cubic BN, and BP has been measured from 77 to 1300 K by x−ray techniques The derived thermal expansion coefficients are compared with those of diamond, Si, Ge, SiC, GaP, and BeO using the Debye temperature as a scaling parameter It is apparent that the thermal expansion of Si is the smallest, SiC is intermediate, and all of the others are larger The thermal expansion of Mo and W is also reviewed in order to determine how well these metals match the thermal expansion of the adamantine or diamondlike crystals

Thermal conductivity, elastic modulus, and coefficient of thermal expansion of polymer composites filled with ceramic particles for electronic packaging

Abstract: The effective thermal conductivity, elastic modulus, and coefficient of thermal expansion of epoxy resins filled with ceramic fillers like silica, alumina, and aluminum nitride were determined. The data obtained was compared with theoretical and semitheoretical equations in the literature that are used to predict the properties of two phase mixtures. It was found that Agari's model provided a good estimate of the composite thermal conductivity. The Hashin-Shtrikman lower bound for composite modulus fits the modulus data fairly well at low concentrations of the filler. Also, it was found that the coefficients of thermal expansion of the filled composites lie in between Schapery's upper and lower bounds. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 3396–3403, 1999