Fabrication and microstructural analysis of UN-U3Si2 composites for accident tolerant fuel applications
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- 作者：Kyle D. Johnson ; kylej@kth.se" class="auth_mail" title="E-mail the corresponding author ; Alicia M. Raftery ; Denise Adorno Lopes ; Janne Wallenius
- 关键词：Nuclear fuel ; Accident tolerant fuel ; Uranium nitride ; Uranium silicide ; SPS ; U-N-Si system
- 刊名：Journal of Nuclear Materials
- 出版年：2016
- 出版时间：15 August 2016
- 年：2016
- 卷：477
- 期：Complete
- 页码：18-23
- 全文大小：2824 K
文摘
U3Si2 fabricated from elemental uranium and silicon through arc melting.
Homogeneity of the silicides assessed through densitometry, XRD, SEM and EDS, chemical etching and optical microscopy.
UN powder fabricated using hydriding-nitriding method.
No phase transformations detected when sintering using silicide particle sizes less than UN particle size.
High density composite (98%TD) fabricated with silicide grain coating using spark plasma sintering at 1450 °C.