Melt layer erosion of pure and lanthanum doped tungsten under VDE-like high heat flux loads
Melt layer erosion of pure and lanthanum doped tungsten under VDE-like high heat flux loads
复制标题
类似 VDE 的高热通量负载下纯钨和掺镧钨的熔体层侵蚀
DOI：
10.1016/j.jnucmat.2013.01.033
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发表时间：
2013-07
影响因子：
3.1
通讯作者：
刘伟
中科院分区：
文献类型：
--
作者：
Y. Yuan;H. Greuner;B. Böswirth;G.-N. Luo;B.Q. Fu;H.Y. Xu;刘伟
在IPP Garching的中性束设施GLADIS中应用了ITER中VDE预期的热负荷。用中心热流密度为23 MW/m ~ 2的脉冲氢束对厚度为1.3mm的纯W和W-1wt%La_2O_3轧制板材进行了1.5-1.8s的辐照试验。熔化阈值的确定，熔体层运动以及材料结构的演变。在该实验装置中，两个W等级的熔化阈值非常接近。在W的再凝固层中观察到大量直径从几μm到几十μm的大气泡，随着热流密度的增加，气泡向更深处扩展。而对于W-1wt%La_2O_3，在波纹状熔体层中没有发现大气泡。通过比较两种W牌号的冲蚀特性，初步探讨了熔体层运动和气泡产生的机理。
Heat loads expected for VDEs in ITER were applied in the neutral beam facility GLADIS at IPP Garching. Several ∼3mm thick rolled pure W and W–1wt% La2O3plates were exposed to pulsed hydrogen beams with a central heat flux of 23MW/m2for 1.5–1.8s. The melting thresholds are determined, and melt layer motion as well as material structure evolutions are shown. The melting thresholds of the two W grades are very close in this experimental setup. Lots of big bubbles with diameters from several μm to several 10μm in the re-solidified layer of W were observed and they spread deeper with increasing heat flux. However, for W–1wt% La2O3, no big bubbles were found in the corrugated melt layer. The underlying mechanisms referred to the melt layer motion and bubble issues are tentatively discussed based on comparison of the erosion characteristics between the two W grades.
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影响因子：
1.7
作者：
Y. Shi;G. Miloshevsky;A. Hassanein
通讯作者：
Y. Shi;G. Miloshevsky;A. Hassanein
DOI：
10.1021/j100826a029
发表时间：
1961-08
期刊：
The Journal of Physical Chemistry
影响因子：
--
作者：
H. Goldstein;P. N. Walsh;D. White
通讯作者：
H. Goldstein;P. N. Walsh;D. White
影响因子：
3.1
作者：
G. Miloshevsky;A. Hassanein
通讯作者：
G. Miloshevsky;A. Hassanein
影响因子：
1.7
作者：
H. Greuner;B. Boeswirth;J. Boscary;A. Plankensteiner;B. Schedler
通讯作者：
H. Greuner;B. Boeswirth;J. Boscary;A. Plankensteiner;B. Schedler
影响因子：
3.1
作者：
K. Krieger;T. Lunt;R. Dux;A. Janzer;A. Kallenbach;H. W. Müller;R. Neu;T. Pütterich;V. Rohde
通讯作者：
K. Krieger;T. Lunt;R. Dux;A. Janzer;A. Kallenbach;H. W. Müller;R. Neu;T. Pütterich;V. Rohde