Studies of diffusion by diffraction/scattering techniques
Conference
·
OSTI ID:6602217
Novel elastic diffraction/scattering methods utilizing x-rays of thermal neutrons are now available for studying the kinetic process of a phase transformation, a solid state reaction, and atomic diffusion in an in-situ manner. In particular, diffusion models governing the transformation and/or reaction can be tested on a microscopic scale yielding detailed information on interdiffusion coefficients, diffusion paths, relaxation times, and other rate controlling parameters. Determination of these parameters entails using a particular diffusion model to interpret the kinetic parameter(s) that can be extracted from the diffraction/scattering data. This can be accomplished by either direct (real) space or reciprocal space approaches. In this paper the scattering theories as well as experimental details of both wide-angle and small-angle diffraction/scattering methods are discussed. Several examples are illustrated to demonstrate the practicality of the techniques. 31 refs., 25 figs., 1 tab.
- Research Organization:
- Illinois Univ., Urbana (USA). Dept. of Materials Science and Engineering
- DOE Contract Number:
- AC02-76ER01198
- OSTI ID:
- 6602217
- Report Number(s):
- DOE/ER/01198-2481; CONF-8809226-1; ON: DE89003850
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARYONS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CRYSTALS
DIAGNOSTIC TECHNIQUES
DIFFRACTION
DIFFUSION
ELEMENTARY PARTICLES
FERMIONS
FLUCTUATIONS
HADRONS
MEASURING METHODS
MICROSTRUCTURE
NEUTRON DIFFRACTION
NEUTRONS
NUCLEONS
PHASE TRANSFORMATIONS
SCATTERING
SMALL ANGLE SCATTERING
SOLIDS
TEMPERATURE DEPENDENCE
THERMAL NEUTRONS
VARIATIONS
X-RAY DIFFRACTION
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARYONS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CRYSTALS
DIAGNOSTIC TECHNIQUES
DIFFRACTION
DIFFUSION
ELEMENTARY PARTICLES
FERMIONS
FLUCTUATIONS
HADRONS
MEASURING METHODS
MICROSTRUCTURE
NEUTRON DIFFRACTION
NEUTRONS
NUCLEONS
PHASE TRANSFORMATIONS
SCATTERING
SMALL ANGLE SCATTERING
SOLIDS
TEMPERATURE DEPENDENCE
THERMAL NEUTRONS
VARIATIONS
X-RAY DIFFRACTION