Refractory materials and high temperature measurements

HIGH TEMPERATURE ELASTIC PROPERTIES OF REFRACTORY MATERIALS

Abstract: A pulse-echo technique, based on ultrasonic "long-bar" mode (LBM) velocity measurements, working up to 1700°C is described. Magnetostrictive transducers and ultrasonic lines used in a 40-85 kHz frequency range are detailed. The conditions of choice of fundamental parameters (frequency, line geometry, sample size) are discussed in relation with the nature and the microstructure of ...

High Temperature Materials and Mechanisms

Given the wide topic coverage and the sometimes introductory character of the book, it is not helpful that only 21 bibliographic entries are provided for the entire book. The offer of a wider bibliography selection would significantly improve the usefulness of the book, since its topic diversity is likely to require for most readers additional reading on some of the topics. Dr M. Sergio Campoba...

High pressure high temperature cell for electrical conductivity measurements of Earth-type materials

AbstructA high pressure, high temperature cell has been constructed and used to determine the temperature dependence of the electrical conductivity of various geological materials at a frequency of 60 Hz. Test conditions in the cell approximate an in situ environment by means of a variable uniaxial confining pressure and a separately variable pore pressure. A wide array of constituents of typic...

High Temperature Self-Lubricating Materials

High Temperature Superconductivity: Materials, Mechanism and Applications

The immense potential of high temperature superconductivity for technological use has kept the subject alive ever since its discovery. Though the mechanism of high temperature superconductivity still remains elusive, a lot of progress has been made resulting in a major reduction in the number of proposed mechanisms under consideration. At present, electron phonon interaction or spin fluctuation...