Thermal Analysis and Time Resolved X Ray Diffraction of Polymorphic Phase Transformations PDF Download
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Author: Sivia Faggioli
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Book Description
Author: Sivia Faggioli
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Book Description
Author: D. D. L. Chung
Publisher: Wiley
ISBN: 9780471187264
Category : Science
Languages : en
Pages : 268
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Book Description
In light of the growing importance and availability of intense x-ray sources and position-sensitive detectors, this book offers comprehensive treatment of the principles, instrumentation, and applications of x-ray diffraction at elevated temperatures. Coverage explores the uses of intense x-ray sources and position-sensitive detectors for assessing these sources, and offers comparisons with complementary thermal analysis techniques (differential scanning calorimetry, thermogravimetric analysis, thermal mechanical analysis) for carrying out phase identification, texture analysis, and grain size measurement by way of in situ process analysis at elevated temperatures in a broad range of fields, including crystallography, thermal analysis, materials science, chemical and electrical analysis.
Author: Ola Synnergren
Publisher:
ISBN:
Category : Phase transformations (Statistical physics)
Languages : en
Pages : 146
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Book Description
Author: Reuben Rudman
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 370
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Book Description
Low-temperature X-ray diffraction (LTXRD) investigations offer many challenges to the diffractionist, not all of which are technical or scientific in nature. LTXRD studies can be frustrating: There are at least two reports of investigations ruined by the loss of crystals (grown with extreme difficulty) because of the widespread power failure and blackout in the northeastern United States in late 1965. LTXRD studies can cause discomfort: In several instances, "low temperatures" have been attained by opening all the windows in the X-ray laboratory. LTXRD studies can be dangerous: It was once reported that a crys tal was lost because a laboratory assistant fell down a flight of stairs and lay unconscious for about an hour on his way to refilling a liquid-nitrogen (LN2 ) dewar. This last report indicated the disposition of the crystal but not that of the laboratory assistant. However, in general, the results of low-temperature X-ray diffraction investigations cannot be obtained in any other manner, and one is well compensated for the effort expended in constructing and maintaining a low-temperature system. Crystal-structure analyses of solidified liquids and gases, phase transformation investigations, accurate crystal-structure analy ses and electron-density maps, thermal expansion measurements, and defect structure studies are a few of the many important applications of LTXRD.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Time-resolved and spatially-resolved diffraction techniques have been developed recently to perform materials dynamics study in-situ extending into the time and spatial domain in high temperature processes. The applications of these methods to investigate the chemical dynamics of solid combustion reactions and to map phases and their transformation in fusion welds are exemplified in this paper.
Author: Reuben Rudman
Publisher: Springer
ISBN: 9781461587712
Category : Science
Languages : en
Pages : 0
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Book Description
Low-temperature X-ray diffraction (LTXRD) investigations offer many challenges to the diffractionist, not all of which are technical or scientific in nature. LTXRD studies can be frustrating: There are at least two reports of investigations ruined by the loss of crystals (grown with extreme difficulty) because of the widespread power failure and blackout in the northeastern United States in late 1965. LTXRD studies can cause discomfort: In several instances, "low temperatures" have been attained by opening all the windows in the X-ray laboratory. LTXRD studies can be dangerous: It was once reported that a crys tal was lost because a laboratory assistant fell down a flight of stairs and lay unconscious for about an hour on his way to refilling a liquid-nitrogen (LN2 ) dewar. This last report indicated the disposition of the crystal but not that of the laboratory assistant. However, in general, the results of low-temperature X-ray diffraction investigations cannot be obtained in any other manner, and one is well compensated for the effort expended in constructing and maintaining a low-temperature system. Crystal-structure analyses of solidified liquids and gases, phase transformation investigations, accurate crystal-structure analy ses and electron-density maps, thermal expansion measurements, and defect structure studies are a few of the many important applications of LTXRD.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
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Book Description
A high temperature furnace (up to 1500 C) has been designed specifically for use with high-energy synchrotron radiation using Debeye-Scherrer transmission geometry. This allows for full bulk sampling and a low thermal gradient (
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Elzbieta Trzop
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Book Description
The main purpose of this Ph. D. thesis is the structural study of photochemical and photophysical transformations in crystals by X-ray diffraction. We studied selected organic compounds undergoing intramolecular photochemical reactions in a solid state. Previously to these studies, there was a lack of reports on structural monitoring such processes. Moreover, we focused on molecular phototransformations in selected iron complexes, which allowed the observation of wavelength selectivity of the photosteady states. We also monitored out-of-equilibrium dynamics of the ultra-fast photoinduced transformation by time-resolved X-ray diffraction, evidencing three stages: (i) the picosecond change of the molecular state; (ii) the unit-cell volume expansion in several tens of nanoseconds; (iii) the macroscopic thermal effect on the microsecond time scale.
