Thermal treatment of W large-scale fiberform nanostructures

被引：2

作者：

Kajita, Shin ^{[1
]}

Okuyama, Tatsuki ^{[2
]}

Tanaka, Hirohiko ^{[2
]}

Kuwabara, Tatsuya ^{[2
]}

Ohno, Noriyasu ^{[2
]}

Yoshida, Naoaki ^{[3
]}

机构：

[1] Nagoya Univ, Inst Mat & Syst Sustainabil, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

[3] Kyushu Univ, Res Inst Appl Mech, Kasuga, Fukuoka 8168580, Japan

来源：

PHYSICA SCRIPTA | 2021年 / 96卷 / 09期

基金：

日本学术振兴会;

关键词：

tungsten; fuzz; deposition; HELIUM; GROWTH; TUNGSTEN;

D O I：

10.1088/1402-4896/ac0866

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent experiments have revealed that accelerated tungsten (W) nanostructure growth occurs during the exposure to helium (He) plasmas with an additional W deposition, and mm-thick large-scale fiberform nanostructures (LFNs) are formed when certain condition is satisfied. In order to reveal whether accelerated growth occurs in fusion device, it is important to understand the annealing process in addition to the growth process. In this study, we will perform thermal treatment of W LFNs. Detailed observation reveals that the LFNs shrink at a faster rate than that of conventional fuzz, though it takes longer time to fully be reintegrated to the surface because the thickness is orders of magnitude greater.

引用

页数：7

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