潜在的等离子体面层材料:通过不同烧结技术生产的 CeB6 颗粒增强 W-1Ni 基复合材料案例研究

IF 6.7 3区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Burçak Boztemur , Ammar Alkraidi , Mertcan Kaba , Yue Xu , Laima Luo , Hüseyin Çimenoğlu , M. Lütfi Öveçoğlu , Duygu Ağaoğulları
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引用次数: 0

摘要

钨(W)是未来最有前途的面向等离子体的材料。为了提高钨的抗辐照性能,人们对其合金或用各种化合物增强的复合材料进行了研究。本研究旨在调查钨基体中的含硼增强材料对 He 离子辐照的影响。将具有高中子屏蔽性能的六硼化铈(CeB)微粒加入预合金化了 1 wt% 镍(W1Ni)的 W 基体中。CeB 粉末是自制的,由 CeO/Mg/BO 粉末混合物通过机械化学合成和提纯步骤制备而成。通过机械合金化将 1、5 和 10 wt% 的 CeB 粉末添加到预合金化的 W1Ni 中,然后使用无压烧结(PS,1400 °C,1 小时)和火花等离子烧结(SPS,1410 °C,1 分钟)技术将其固结。通过两种不同的烧结方法制备的 CeB 粒子增强 W1Ni 复合材料含有不同数量的增强剂,并对其成分、微结构和微硬度性能以及磨损和辐照行为进行了比较。结果表明,在两种烧结方法下,复合材料中 CeB 增强量的增加会引发 WB 相的形成,尤其是在 W1Ni-10CeB 复合材料中。在使用 SPS 方法的情况下,通过增加 CeB 的用量,力学性能和辐照性能得到了更大的提高。与其他烧结样品相比,SPS 法烧结的 W1Ni-10CeB 复合材料的比磨损率最低,为 ∼4 × 10 mm/Nm,硬度值最大,为 ∼21 GPa。根据表面变形,W1Ni-5CeB 复合材料对 He 离子辐照的耐受性相对较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Potential plasma facing materials: A case study on CeB6 particulate reinforced W–1Ni matrix composites produced via different sintering techniques

Tungsten (W) is the most promising material for future plasma-facing materials. Its alloys or composites reinforced with various compounds have been studied to improve the irradiation resistance of W. This study aimed to investigate the effect of boron-containing reinforcement in the W matrix against He+ ion irradiation. Cerium hexaboride (CeB6) particulates, which have high neutron shielding properties, were incorporated into the W matrix pre-alloyed by 1 wt% Ni (W1Ni). CeB6 powders were home-made and prepared from CeO2/Mg/B2O3 powder blends via mechanochemical synthesis and purification steps. 1, 5, and 10 wt% CeB6 powders were added to pre-alloyed W1Ni by mechanical alloying, and then they were consolidated by using pressureless sintering (PS, 1400 °C, 1 h) and spark plasma sintering (SPS, 1410 °C, 1 min) techniques. CeB6 particle-reinforced W1Ni composites contained different amounts of reinforcements were prepared by two different sintering methods and were compared with respect to their compositional, microstructural, and microhardness properties and wear and irradiation behaviors. Based on the results, increasing the CeB6 reinforcement amount in the composite triggered the formation of the W2B phase, especially in the W1Ni–10CeB6 composite after both sintering methods. The mechanical and irradiation properties were enhanced more by increasing the CeB6 amount in the case of using the SPS method. When compared to other sintered samples, the SPS'ed W1Ni–10CeB6 composite has the lowest specific wear rate of ∼4 × 10−7 mm3/Nm and the maximum hardness value of ∼21 GPa. According to surface deformation, the W1Ni–5CeB6 composite exhibited comparatively higher resistance to He+ ion irradiation.

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来源期刊
Journal of Science: Advanced Materials and Devices
Journal of Science: Advanced Materials and Devices Materials Science-Electronic, Optical and Magnetic Materials
CiteScore
11.90
自引率
2.50%
发文量
88
审稿时长
47 days
期刊介绍: In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research. Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science. With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.
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