Performance of W-1%Y2O3-0.5%Ti Plasma-Facing Composite Under Fusion Relevant Transient Heat Flux

doi:10.1080/15361055.2021.1874765

	Performance of W-1%Y2O3-0.5%Ti Plasma-Facing Composite Under Fusion Relevant Transient Heat Flux
	Li, Changjun 1,2; Zhu, Dahuan 2; Li, Xiangbin 2,3; Chen, Junling 2
刊名	FUSION SCIENCE AND TECHNOLOGY
	2021-04-09
关键词	W-1%Y2O3-0.5%Ti plasma-facing composite transient heat flux EMS-60 damage
ISSN号	1536-1055
DOI	10.1080/15361055.2021.1874765
通讯作者	Zhu, Dahuan(dhzhu@ipp.ac.cn)
英文摘要	The W-1%Y2O3-0.5%Ti composite fabricated by the spark plasma sintering method has been tested on the EMS-60 facility using 0 to 600 MW/m(2) with pulse duration of 5 ms for single and 100 cycles. It is shown that the cracking threshold under single pulse of the W-1%Y2O3-0.5%Ti is close to 300 MW/m(2), which exceeds that of pure tungsten (similar to 200 MW/m(2)). Moreover, the crack morphology is different than that of pure W under the same heat load condition. These experimental data illustrate that the addition of dispersed oxides and alloying elements can, to some extent, ameliorate high heat load behaviors. Meanwhile, it should be noted that the melting and volatility of the second phase if the heat flux exceeds 400 MW/m(2) for a single pulse will narrow the operation range of the composite. And, the severe damages of crack and matrix melting under fatigue shocks illustrate that the composite still needs further efforts to be improved by the optimization of fabrication processing.
资助项目	National Natural Science Foundation of China[11775260 and11675219]
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000637573000001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121615]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhu, Dahuan
作者单位	1.Univ Sci & Technol China, Hefei 230021, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.China Int Nucl Fus Energy Program Execut Ctr, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Li, Changjun,Zhu, Dahuan,Li, Xiangbin,et al. Performance of W-1%Y2O3-0.5%Ti Plasma-Facing Composite Under Fusion Relevant Transient Heat Flux[J]. FUSION SCIENCE AND TECHNOLOGY,2021.
APA	Li, Changjun,Zhu, Dahuan,Li, Xiangbin,&Chen, Junling.(2021).Performance of W-1%Y2O3-0.5%Ti Plasma-Facing Composite Under Fusion Relevant Transient Heat Flux.FUSION SCIENCE AND TECHNOLOGY.
MLA	Li, Changjun,et al."Performance of W-1%Y2O3-0.5%Ti Plasma-Facing Composite Under Fusion Relevant Transient Heat Flux".FUSION SCIENCE AND TECHNOLOGY (2021).