High strength SiC whisker-reinforced Ti₃SiC₂ composites (SiC_w/Ti₃SiC₂) with an improved thermal conductivity and mechanical properties were fabricated by spark plasma sintering. The bending strength of 10 wt% SiC_w/Ti₃SiC₂ was 635 MPa, which was approximately 50% higher than that of the monolithic Ti₃SiC₂ (428 MPa). The Vickers hardness and thermal conductivity (k) also increased by 36% and 25%, respectively, from the monolithic Ti₃SiC₂ by the incorporation of 10 wt% SiC_w. This remarkable improvement both in mechanical and thermal properties was attributed to the fine-grained uniform composite microstructure along with the effects of incorporated SiC_w. The SiC_w/Ti₃SiC₂ can be a feasible candidate for the in-core structural application in nuclear reactors due to the excellent mechanical and thermal properties.

中文翻译：

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火花等离子体烧结制备具有改善的导热性和机械性能的SiC w / Ti 3 SiC 2复合材料

通过火花等离子体烧结制备了具有改善的导热性和机械性能的高强度SiC晶须增强的Ti ₃ SiC ₂复合材料（SiC _w / Ti ₃ SiC ₂）。10 wt％SiC _w / Ti ₃ SiC ₂的弯曲强度为635 MPa，比整体式Ti ₃ SiC ₂（428 MPa）的弯曲强度高约50％。通过掺入10 wt％的SiC _w，单片Ti ₃ SiC ₂的维氏硬度和导热率（k）也分别增加了36％和25％。。机械性能和热性能的显着改善归因于细颗粒均匀的复合材料微观结构以及掺入SiC _w的影响。SiC _w / Ti ₃ SiC ₂具有优异的机械和热性能，因此可以作为核反应堆堆芯结构应用的可行候选物。