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首页> 外文期刊>Transactions of the American nuclear society >Fabrication of Dual Phase Magnesia-Zirconia Ceramics Doped with Plutonia and Erbia
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Fabrication of Dual Phase Magnesia-Zirconia Ceramics Doped with Plutonia and Erbia

机译：掺杂有二氧化锆和二氧化Dual的两相氧化锆锆陶瓷的制备

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Dual phase magnesia-zirconia ceramics doped with plutonia and erbia are being evaluated as an inert matrix fuel (IMF) for light water reactors (LWR). The motivation for this work is to develop an IMF with a thermal conductivity superior to that of the fuels based on single-phase yttria stabilized zirconia. The innovative fuel developed at INL is comprised of two major phases: pure MgO and quaternary solid solution consisting of MgO, ZrO_2, Er_2O_3 and PuO_2. Pure MgO phase acts as an efficient heat conductor. It has been shown that dual phase MgO-ZrO_2 ceramics have the thermal conductivity superior to that of UO_2 and have notable chemical resistance to water at the temperature of 573 K and pressure 8.6 MPa, which makes them attractive for use as an IMF matrix in LWRs.
机译：掺有二氧化and和二氧化Dual的氧化镁-氧化锆双相陶瓷正在评估作为轻水反应堆（LWR）的惰性基质燃料（IMF）。开展这项工作的动机是开发一种导热性优于基于单相氧化钇稳定氧化锆的燃料的IMF。 INL开发的创新燃料包括两个主要阶段：纯MgO和由MgO，ZrO_2，Er_2O_3和PuO_2组成的四元固溶体。纯MgO相可作为有效的导热体。结果表明，双相MgO-ZrO_2陶瓷具有比UO_2更高的导热率，在573 K的温度和8.6 MPa的压力下具有显着的耐水化学性，这使其在轻水堆中用作IMF基体具有吸引力。 。

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