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Contribution to the U$_2$C$_3$ formation by the synthetic reaction and by the decomposition of UC$_2$; Beitrag zur U$_2$C$_3$-bildung nach der synthetischen reaktion und durch zerfall von UC$_2$

Abstract

This work is a contribution to the study of the mechanism and of the kinetics of the U$_2$C$_3$ formation by the synthetic reaction. The influences of a mechanical and a thermical pre-treatment of the samples on the reaction kinetics were investigated and discussed taking into account other information from the literature. The relative increasing of the U$_2$C$_3$ nucleation rate due to the pulverization corresponds approximately to the surface enlargement of the pulverized material. The activation energy for the synthetic reaction in powder was found to be 94 +- 7 kcal/mol. The negative influence of nitrogen, oxygen and tungsten on the U$_2$C$_3$ formation was reported. In the decomposition of UC$_2$ to U$_2$C$_3$ and graphite, the influences of the morphology of the graphite precipitate and the fast neutron irradiation on the beginning of the U$_2$C$_3$ formation were also investigated.
Publication Date:
Jun 01, 1974
Product Type:
Technical Report
Report Number:
GERHTR-116; JUL-1081-RW
Reference Number:
NSA-31-017025
Resource Relation:
Related Information: Thesis. Submitted to Technische Hochschule, Aachen, West Germany. Work performed under United States -- German High Temperature Reactor Research Exchange Program
Subject:
N50140* -Metals, Ceramics, & Other Materials-Ceramics & Cermets-Radiation Effects; N40240 -Chemistry-Inorganic, Organic, & Physical Chemistry-Feed Materials Processing; URANIUM CARBIDES; PHYSICAL RADIATION EFFECTS; ACTIVATION ENERGY; CHEMICAL REACTION KINETICS; DECOMPOSITION; FAST NEUTRONS; GRAPHITE; HEAT TREATMENTS; NUCLEATION; POWDERS; URANIUM
OSTI ID:
4948771
Research Organizations:
Kernforschungsanlage Juelich G.m.b.H. (Germany). Inst. fuer Reaktorwerkstoffe und Heisse Zellen
Country of Origin:
Germany
Language:
German
Submitting Site:
DTIE
Size:
146 p.
Announcement Date:
Mar 16, 2013

Citation Formats

Buschinelli, A. J.A. Contribution to the U$_2$C$_3$ formation by the synthetic reaction and by the decomposition of UC$_2$; Beitrag zur U$_2$C$_3$-bildung nach der synthetischen reaktion und durch zerfall von UC$_2$. Germany: N. p., 1974. Web.
Buschinelli, A. J.A. Contribution to the U$_2$C$_3$ formation by the synthetic reaction and by the decomposition of UC$_2$; Beitrag zur U$_2$C$_3$-bildung nach der synthetischen reaktion und durch zerfall von UC$_2$. Germany.
Buschinelli, A. J.A. 1974. "Contribution to the U$_2$C$_3$ formation by the synthetic reaction and by the decomposition of UC$_2$; Beitrag zur U$_2$C$_3$-bildung nach der synthetischen reaktion und durch zerfall von UC$_2$." Germany.
@misc{etde_4948771,
title = {Contribution to the U$_2$C$_3$ formation by the synthetic reaction and by the decomposition of UC$_2$; Beitrag zur U$_2$C$_3$-bildung nach der synthetischen reaktion und durch zerfall von UC$_2$}
author = {Buschinelli, A. J.A.}
abstractNote = {This work is a contribution to the study of the mechanism and of the kinetics of the U$_2$C$_3$ formation by the synthetic reaction. The influences of a mechanical and a thermical pre-treatment of the samples on the reaction kinetics were investigated and discussed taking into account other information from the literature. The relative increasing of the U$_2$C$_3$ nucleation rate due to the pulverization corresponds approximately to the surface enlargement of the pulverized material. The activation energy for the synthetic reaction in powder was found to be 94 +- 7 kcal/mol. The negative influence of nitrogen, oxygen and tungsten on the U$_2$C$_3$ formation was reported. In the decomposition of UC$_2$ to U$_2$C$_3$ and graphite, the influences of the morphology of the graphite precipitate and the fast neutron irradiation on the beginning of the U$_2$C$_3$ formation were also investigated.}
place = {Germany}
year = {1974}
month = {Jun}
}