| 聚变堆面向等离子体SiC/Cu梯度材料的制备与评价 |
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| 引用本文： | 凌云汉, 李江涛, 葛昌纯. 聚变堆面向等离子体SiC/Cu梯度材料的制备与评价[J]. 工程科学学报, 2001, 23(3): 257-261. DOI: 10.13374/j.issn1001-053x.2001.03.044 |
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| 作者姓名： | 凌云汉 李江涛 葛昌纯 |
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| 作者单位： | 1.北京科技大学特陶中心, 北京 100083 |
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| 摘 要： | 用超高压梯度烧结法制备出了成分分布从0~100%的接近理论密度的SiC/Cu聚变堆面向等离子体功能梯度材料.化学溅射实验表明其CD4产额与二次纯化石墨相比降低了80%;热解吸放气率约为石墨的10%;在398MW/m2的激光热冲击下,材料表面出现疲劳裂纹和化学分解现象;原位等离子体辐照结果显示陶瓷材料表面出现一定程度的溅射损伤.
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| 关 键 词： | 功能梯度材料 面向等离子体材料 碳化硅 辐照损伤 |
| 收稿时间： | 2001-01-08 |
Processing and Evaluation of Graded SiC/Cu Facing Plasma Composite |
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| LING Yunhan, LI Jiangtao, GE Changchun. Processing and Evaluation of Graded SiC/Cu Facing Plasma Composite[J]. Chinese Journal of Engineering, 2001, 23(3): 257-261. DOI: 10.13374/j.issn1001-053x.2001.03.044 |
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| Authors: | LING Yunhan LI Jiangtao GE Changchun |
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| Affiliation: | 1.Laboratory of Special Ceramics&P/M, UST Beijing, Beijing 100083, China |
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| Abstract: | A near dense graded SiC/Cu plasma facing material with a spectrum of 0-100% compositional distributions of SiC was successfully prepared by a new process termed graded sintering under ultra-high pressure. Tests on plasma relevant performances showed that the chemical sputtering CD4 yield of SiC/Cu graded composite is 80% lower than that of SMF-800 nuclear graphite, while its thermal desorption is about 10% of that graphite; Fatigue cracks and chemical decomposition were found on the surface of SiC/Cu FGM after 300 cycles of thermal impact with a power of 398 MW/m2 laser impulse, slight damage was also observed on the material surface after in-situ plasma trradiation in Tokamak apparatus. |
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| Keywords: | functionally graded material facing plasma material silicon carbide irradiation damage |
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