Anomalous X-ray diffraction from omega nanoparticles in beta-Ti(Mo) single crystals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10398930" target="_blank" >RIV/00216208:11320/19:10398930 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14740/19:00113444
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vz5RpY46IR" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vz5RpY46IR</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1107/S2053273319008428" target="_blank" >10.1107/S2053273319008428</a>
Alternative languages
Result language
angličtina
Original language name
Anomalous X-ray diffraction from omega nanoparticles in beta-Ti(Mo) single crystals
Original language description
Anomalous X-ray diffraction (AXRD) is a technique which makes use of effects occurring near the energy of an absorption edge of an element present in the studied sample. The intensity of the diffracted radiation exhibits an anomalous decrease when the primary beam energy matches the energy needed to excite an electron from an atomic orbital. The characteristics of this step are sensitive to the concentration of the 'anomalous' element and its spatial distribution in the sample. In the present investigation, AXRD was employed to study omega particles in a metastable beta titanium alloy Ti-15Mo (in wt%). The experiments were done in an energy range around the Mo K edge at 20.0 keV, allowing investigation of the distribution of Mo in the material, which is rejected from the volume of omega particles during their diffusion-driven growth. This paper deals with diffuse scattering patterns around the (006)(beta) diffraction maximum. It was observed that different regions of the diffuse scattering exhibited different variations of diffracted intensity with the incident photon energy near the absorption edge. Numerical simulations of diffuse scattering patterns as well as of energy dependences of the scattered intensity were performed. It was found that the observed patterns and their dependence on the primary beam energy can be explained by taking into account (a) elastic deformation of the beta matrix arising from the presence of slightly misfitting omega particles and (b) the presence of a 'cloud' of a higher Mo concentration around omega particles.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Crystallographica. Section A: Foundations and Advances [online]
ISSN
2053-2733
e-ISSN
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Volume of the periodical
75
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
718-729
UT code for WoS article
000484157300005
EID of the result in the Scopus database
2-s2.0-85071777284