Ti 含量对TiB2-SiC-Ti 材料制备和性能的影响
文献类型：期刊论文
| 作者 | He, XX; Li, BS ; Liu, R; Zhang, TM; Cao, XZ; Chen, LM; Xu, S
|
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2022 |
| 卷号 | 71期号:19页码:192801 |
| 关键词 | TiB2-SiC-Ti materials ion irradiation high-temperature oxidation mechanical character |
| ISSN号 | 1000-3290 |
| DOI | 10.7498/aps.71.20220530 |
| 文献子类 | Article |
| 英文摘要 | Since the 21st century, low atomic number material coating has been considered as one of methods fortreating the first wall of controllable thermonuclear fusion device . The TiB2 material with high melting point,high hardness, low coefficient of thermal expansion, excellent wear resistance and low atomic number hasentered into people's field of vision. Single TiB2 is difficult to sinter and process into other products. Therefore,adding ceramic and metal additives to TiB2 matrix material to effectively improve the mechanical propertiesand processability of the material has become a research hotspot. On the basis of the existing researches ofTiB(2)-SiC, in the present work the metal Ti powder is added as the second additive to improve the properties ofTiB(2) composite. The TiB2 and SiC are mixed at a mass ratio of 2 to 3, then two kinds of TiB2-SiC-Ti materialswith different amounts of Ti content are prepared by spark plasma sintering (SPS) technology. The materialsare irradiated by a He+ beam with energy of 60 keV and ion fluence of 2 x 10(17) ions/cm(2) at room temperature.The material is heat-treated at 1500 degrees C before and also after irradiation. The performances of prepared samples,the effect of irradiation on materials and the results of high temperature heat treatment are characterized byenergy dispersive spectroscopy, Raman spectrum, grazing angle x-ray diffraction spectrum, Vickers hardness,wear resistance test, and scanning electron microscope. The results show that the surface morphology andtoughness of TiB2-SiC-Ti material with 3% Ti mass fraction are poor as shown in SEM images. The wearresistance test indicates that the material surface is seriously worn and the wear resistance is poor. The X-raydiffraction spectrum and Raman spectra show that the material is oxidized seriously at 1500 degrees C, which is likelyto be the cause of the poor compactness of materials. Raman spectra, Grazing angle X-ray diffraction spectrumand some Vickers hardness data before and after irradiation indicate that the material with low Ti contentpossess better crystal structure and weaker irradiation hardening. In conclusion, the TiB2-SiC-Ti material with3% Ti mass fraction exhibits lower density, poorer wear resistance and lower hardness, while the material withlower Ti mass fraction is more resistant to irradiation than the material with 6% Ti mass fraction at roomtemperature. |
| 语种 | 中文 |
| WOS记录号 | WOS:000890882300007 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299114]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | He, XX,Li, BS,Liu, R,等. Ti 含量对TiB2-SiC-Ti 材料制备和性能的影响[J]. ACTA PHYSICA SINICA,2022,71(19):192801. |
| APA | He, XX.,Li, BS.,Liu, R.,Zhang, TM.,Cao, XZ.,...&Xu, S.(2022).Ti 含量对TiB2-SiC-Ti 材料制备和性能的影响.ACTA PHYSICA SINICA,71(19),192801. |
| MLA | He, XX,et al."Ti 含量对TiB2-SiC-Ti 材料制备和性能的影响".ACTA PHYSICA SINICA 71.19(2022):192801. |
入库方式： OAI收割
来源：高能物理研究所
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