Low Temperature Sintering of Si3N4 Ceramics and its Applicability as an Inert Matrix of the Transuranium Elements for Transmutation of Minor Actinides

Toyohiko Yano; Junichi Yamane; Katsumi Yoshida

doi:10.4028/www.scientific.net/KEM.403.23

Paper Titles

The Phase Evolution in the Si₃N₄-AlN System after High-Energy Mechanical Treatment of the Precursor Powder
p.7

New Green Phosphor Ba₃Si₆O₁₂N₂:Eu for White LED: Crystal Structure and Optical Properties
p.11

Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED
p.15

Fabrication of Electrically Conductive Si₃N₄ Ceramics by Dispersion of Carbon Nanotubes
p.19

Low Temperature Sintering of Si₃N₄ Ceramics and its Applicability as an Inert Matrix of the Transuranium Elements for Transmutation of Minor Actinides
p.23

2.45 GHz Microwave Sintering of Silicon Nitride
p.27

Sintering Shrinkage Behavior of Si₃N₄ Ceramics Prepared by a Post-Reaction Sintering Technique
p.31

Sintering Shrinkage Behavior and Mechanical Properties of HfO₂-Added Si₃N₄ Ceramics
p.35

Fabrication and Evaluation of AlN–SiC Solid Solutions with p-Type Electrical Conduction
p.39

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Low Temperature Sintering of Si₃N₄ Ceramics and its Applicability as an Inert Matrix of the Transuranium Elements for Transmutation of Minor Actinides

Abstract:

For the transmutation of the very long half-lived isotopes which are separated from the spent nuclear fuels, it is necessary to find proper inert matrices these are stable under heavy neutron irradiation at high temperature. Silicon nitride ceramics is a candidate since it is very tolerant for heavy neutron irradiation and keeps relatively high thermal conductivity. For these reasons, we try to sinter Si3N4 ceramics containing large amounts of CeO2 as a simulant for Am2O3, a typical transuranium element. The low-temperature pressureless-sintering behavior of the ceramics and chemical and thermal properties of the obtained sintered bodies are reported.

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Key Engineering Materials (Volume 403)

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23-26

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https://doi.org/10.4028/www.scientific.net/KEM.403.23

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December 2008

Authors:

Toyohiko Yano, Junichi Yamane, Katsumi Yoshida

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Inert Matrix, Low Temperature Sintering, Transmutation, Transuranium Element

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