乙丙二烯单体-一氧化铅-磁铁矿复合材料在放射性废物处理中的研究

Q2 Physics and Astronomy
Vinayak Anand Kamat , H.M. Somashekarappa
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引用次数: 0

摘要

本研究制备了三元乙丙橡胶(EPDM)-一氧化铅(PbO)-磁铁矿(Fe3O4)复合材料,并研究了其在不同γ辐照剂量(50、100、200、300、500和1000kGy)下的性能变化。采用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)和通用试验机(UTM)对辐照后的EPDM金属氧化物复合材料进行了表征。观察到合成的样品在超过500kGy的辐照剂量时显示出无定形性质。辐照样品的FESEM形态图显示,随着辐照剂量的增加,断裂尺寸增加。机械测试表明,制备的样品可保持高达~100kGy的机械强度。此外,还研究了热性能和电学性能对辐照剂量的影响。合成的样品显示出良好的热稳定性,高达~500kGy。观察到合成的EPDM金属氧化物复合材料的AC电导率随着辐照剂量的增加而略有增加。据观察,合成的三元乙丙橡胶金属氧化物复合材料是相对较好的抗辐射候选材料,可用于放射性废物处理管理应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of ethylene propylene diene monomer-lead monoxide-magnetite composites in radioactive waste disposal

In this study, ethylene propylene diene monomer (EPDM)-lead monoxide (PbO)-magnetite (Fe3O4) composite was prepared and changes in its properties with different gamma irradiation doses (50, 100, 200, 300, 500, and 1000 kGy) were investigated. Characterizations of irradiated EPDM-metal oxide composites were performed by X-ray Diffractometer (XRD), Field Emission Scanning Electron Microscope (FESEM) and Universal Testing Machine (UTM). It was observed that the synthesized sample shows an amorphous nature beyond the 500 kGy irradiation dose. The FESEM morphographs of irradiated samples show an increase in fracture size with an increase in irradiation dose. The mechanical tests have shown that prepared samples retain their mechanical strength up to ∼100 kGy. In addition, the effect of thermal and electrical properties on irradiation dose has also been studied. The synthesized samples show good thermal stability up to ∼500 kGy. The AC conductivity of the synthesized EPDM-metal oxide composites has been observed to increase slightly with an increase in irradiation dose. It was observed that synthesized EPDM-metal oxide composites are relatively good radiation resistant candidates and can be used for radioactive waste disposal management applications.

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来源期刊
Physics Open
Physics Open Physics and Astronomy-Physics and Astronomy (all)
CiteScore
3.20
自引率
0.00%
发文量
19
审稿时长
9 weeks
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