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Development of a routine method for the determination of mean crystallite dimensions in nuclear materials by X-ray diffraction line broadening. An application example using U/sub 3/O/sub 8/ microspheres

Technical Report:

Abstract

A method for mean crystallite size determination by X-ray diffraction line broadening was established. Both step-scanning and methods were extensivly tested and the precision of the data obtained as a function of the crystallite size is discussed. Emphasis is given to our contribution in order to eliminate instrumental effects as well as K sub(..cap alpha../sub 1/)/Ksub(..cap alpha../sub 2/) doublet effect upon line broadening. Instrumental correction was performed with a monocrystalline Si sample having mean crystallite size well above 13,000 A improving the accuracy of experimental data. Ksub(..cap alpha../sub 2/) and Ksub(..cap alpha../sub 2/) peaks determined instead of taking it for granted as 5. The mean crystallite dimension of U/sub 3/O/sub 8/ was calculated and the results show the dependence of this parameter on the quality of the microspheres.
Publication Date:
Mar 01, 1975
Product Type:
Technical Report
Report Number:
IEA-405
Reference Number:
AIX-08-301002; ERA-02-041088; EDB-77-092349
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 36 MATERIALS SCIENCE; URANIUM OXIDES U3O8; LATTICE PARAMETERS; X-RAY DIFFRACTION; CRYSTAL LATTICES; LINE BROADENING; MILLER INDICES; ACTINIDE COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; OXIDES; OXYGEN COMPOUNDS; SCATTERING; URANIUM COMPOUNDS; URANIUM OXIDES; 050700* - Nuclear Fuels- Fuels Production & Properties; 400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials; 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies
OSTI ID:
8184879
Research Organizations:
Instituto de Energia Atomica, Sao Paulo (Brazil). Divisao de Engenharia Quimica
Country of Origin:
Brazil
Language:
English
Availability:
Dep. NTIS (US Sales Only), PC A02/MF A01.
Submitting Site:
INIS
Size:
Pages: 15
Announcement Date:
Mar 14, 2013

Technical Report:

Citation Formats

Imakuma, K, Sato, I M, Cretella Neto, J, and Costa, M I. Development of a routine method for the determination of mean crystallite dimensions in nuclear materials by X-ray diffraction line broadening. An application example using U/sub 3/O/sub 8/ microspheres. Brazil: N. p., 1975. Web.
Imakuma, K, Sato, I M, Cretella Neto, J, & Costa, M I. Development of a routine method for the determination of mean crystallite dimensions in nuclear materials by X-ray diffraction line broadening. An application example using U/sub 3/O/sub 8/ microspheres. Brazil.
Imakuma, K, Sato, I M, Cretella Neto, J, and Costa, M I. 1975. "Development of a routine method for the determination of mean crystallite dimensions in nuclear materials by X-ray diffraction line broadening. An application example using U/sub 3/O/sub 8/ microspheres." Brazil.
@misc{etde_8184879,
title = {Development of a routine method for the determination of mean crystallite dimensions in nuclear materials by X-ray diffraction line broadening. An application example using U/sub 3/O/sub 8/ microspheres}
author = {Imakuma, K, Sato, I M, Cretella Neto, J, and Costa, M I}
abstractNote = {A method for mean crystallite size determination by X-ray diffraction line broadening was established. Both step-scanning and methods were extensivly tested and the precision of the data obtained as a function of the crystallite size is discussed. Emphasis is given to our contribution in order to eliminate instrumental effects as well as K sub(..cap alpha../sub 1/)/Ksub(..cap alpha../sub 2/) doublet effect upon line broadening. Instrumental correction was performed with a monocrystalline Si sample having mean crystallite size well above 13,000 A improving the accuracy of experimental data. Ksub(..cap alpha../sub 2/) and Ksub(..cap alpha../sub 2/) peaks determined instead of taking it for granted as 5. The mean crystallite dimension of U/sub 3/O/sub 8/ was calculated and the results show the dependence of this parameter on the quality of the microspheres.}
place = {Brazil}
year = {1975}
month = {Mar}
}