High Temperature X-ray Diffraction Studies. Part 4. The Thermal Expansion of U4O9 PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
High temperature x-ray diffraction studies were made of a sample of UO2.235 in a Unicam S 150 camera. These studies, which confirmed the results of earlier workers, extended to 1026 deg where a discontinuity in the variation of cube cell edge with temperature was noted. This discontinuity was believed to represent the transition to a two-phase mixture. An unexpected reaction was noted at elevated temperatures between the sample and either the platinum used as an internal temperature standard or gas adsorbed by it when they were mixed in the x-ray capillary.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
High temperature x-ray diffraction studies were made of a sample of UO2.235 in a Unicam S 150 camera. These studies, which confirmed the results of earlier workers, extended to 1026 deg where a discontinuity in the variation of cube cell edge with temperature was noted. This discontinuity was believed to represent the transition to a two-phase mixture. An unexpected reaction was noted at elevated temperatures between the sample and either the platinum used as an internal temperature standard or gas adsorbed by it when they were mixed in the x-ray capillary.
Author: S. M. Lang Publisher: ISBN: Category : Materials at high temperatures Languages : en Pages : 94
Book Description
High accuracy (0.005 degree 2-theta) and high precision (0.002 degree 2-theta) for x-ray diffraction measurements at angles from less than zero to 155-160 degrees 2-theta at sample temperatures to 2600-2800C in oxidizing, neutral, reducing, or evacuated atmospheric environments are characteristics of a high-temperature x-ray diffractometer system specifically designed for research studies. Within the noble-metal thermocouple temperature range, very rapid thermal equilibrium -- 500C intervals in less than 3 seconds -- can be attained. The crystallometry of zirconium dioxide, ZrO2, has been surveyed in the range from room temperature to 1750C in normal air atmosphere at ambient pressure. Topics studied in some detail have been (a) the hysteresis of the monoclinic-tetragonal zirconia transformation, (b) the axial thermal expansion of tetragonal zirconia to 1750C, (c) the determination of axial expansion data for platinum and beryllium oxide for use as sample temperature indicators, and (d) new mathematical solutions of the classical d-value equations for lattice constants calculations. It has been shown that significant physical properties and constants can be measured for ZrO2 if the oxygen stoichiometry is established and maintained at an (unknown) equilibrium, or pseudo-equilibrium, value. (Author).
Author: Deborah D. L. Chung Publisher: Wiley-VCH ISBN: Category : X-rays Languages : en Pages : 288
Book Description
A textbook for a graduate or undergraduate course in programs such as x-ray diffraction, materials characterization, and thermal analysis. Introduces the principles and instrumentation of x-ray diffraction at elevated temperatures, and its application to crystallography, materials science, chemical and electrical engineering, and other fields. Focusing on intense sources and position-sensitive detectors, describes in-situ phase identification, texture analysis, and grain-size measurement. Annotation copyright by Book News, Inc., Portland, OR
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Author: Great Britain. Her Majesty's Stationery Office
Author: Great Britain. Her Majesty's Stationery Office
Author: Kenneth Charles Blakeslee
Author: Great Britain. Her Majesty's Stationery Office
Author: S. M. Lang
Author: 
Author: Deborah D. L. Chung
Author: International Atomic Energy Agency