Residual strain/stress analysis by means of energy-dispersive neutron-transmission diffraction.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F00%3A49020104" target="_blank" >RIV/61389005:_____/00:49020104 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Residual strain/stress analysis by means of energy-dispersive neutron-transmission diffraction.

Popis výsledku v původním jazyce

A novel modification of the energy-dispersive neutron-transmission diffraction (EDNTD) method for scanning Braff diffraction edges which has been implemented on a conventional diffractometer at a steady state reactor is reported. It is demonstrated thatthe method requiring precise measurements of the intensity-wavelength dependence, which has been used only on time-of-flight instruments can be also simply and succesfully used at steady state sources. Such an intensity-wavelength dependence can be foundin a focused convergent beam coming on a sample from a thin bent perfect monochromator, where, though in a limited .DELTA..theta. range, the monochromatized beam is strongly .theta.-.lambda. correlated. The presented new technique was in this case tested for a precise scanning of the Bragg diffraction edge and consequently, in scanning of small lattice spacing of polycrystalline materials. This EDNTD technique permits us to determine lattice spacing changes .lambda.d/d with the sensitiv

Název v anglickém jazyce

Residual strain/stress analysis by means of energy-dispersive neutron-transmission diffraction.

Popis výsledku anglicky

A novel modification of the energy-dispersive neutron-transmission diffraction (EDNTD) method for scanning Braff diffraction edges which has been implemented on a conventional diffractometer at a steady state reactor is reported. It is demonstrated thatthe method requiring precise measurements of the intensity-wavelength dependence, which has been used only on time-of-flight instruments can be also simply and succesfully used at steady state sources. Such an intensity-wavelength dependence can be foundin a focused convergent beam coming on a sample from a thin bent perfect monochromator, where, though in a limited .DELTA..theta. range, the monochromatized beam is strongly .theta.-.lambda. correlated. The presented new technique was in this case tested for a precise scanning of the Bragg diffraction edge and consequently, in scanning of small lattice spacing of polycrystalline materials. This EDNTD technique permits us to determine lattice spacing changes .lambda.d/d with the sensitiv

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2000

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the International Conference on Residual Stressed /6./.

ISBN

1-86125-123-8

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

1124-1128

Název nakladatele

IOM Communications

Místo vydání

Oxford

Místo konání akce

Oxford [GB]

Datum konání akce

10. 7. 2000

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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