Processing Requirements for Property Optimization of Eu2O3-W Cermets for Fast Reactor Neutron Absorber Applications
Europium sesquioxide is a candidate fast reactor neutron absorber material. It possesses several desirable characteristics for this application, but has a low thermal conductivity. This gives rise to pellet cracking duing reactor operation. To increase the thermal conductivity without great sacrifice in nuclear worth, addition of tungsten to Eu2O3 has been evaluated. Synthesis and fabrication techniques described allow preparation of high-density compacts of Eu2O3–15 vol % W possessing favorable thermal conductivity and thermal expansion.
KeywordsLinear Thermal Expansion Tungsten Powder Tungsten Content Europium Oxide Tungsten Matrix
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