Helium permeability of different structure pyrolytic carbon coatings on graphite prepared at low temperature and atmosphere pressure

被引：7

作者：

Song, Jinliang ^{[1
]}

Zhao, Yanling ^{[2
]}

Zhang, Wenting ^{[1
,2
]}

He, Xiujie ^{[1
]}

Zhang, Dongsheng ^{[1
]}

He, Zhoutong ^{[1
]}

Gao, Yantao ^{[1
]}

Jin, Chan ^{[1
]}

Xia, Huihao ^{[1
]}

Wang, Jianqiang ^{[1
]}

Huai, Ping ^{[1
]}

Zhou, Xingtai ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Nucl Radiat & Nucl Energy Technol, Shanghai 201800, Peoples R China

[2] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China

来源：

JOURNAL OF NUCLEAR MATERIALS | 2016年 / 468卷

基金：

中国国家自然科学基金;

关键词：

Pyrolytic carbon; Atmosphere pressure; Low temperature; Permeability; LIQUID FLUORIDE SALT; XE-135; PENETRATION; ISOTROPIC GRAPHITE; NUCLEAR GRAPHITE; GAS-PERMEABILITY; FUSION-REACTOR;

D O I：

10.1016/j.jnucmat.2015.10.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low density isotropic pyrolytic carbon (IPyC) and high density anisotropic pyrolytic carbon (APyC) coatings have been prepared at low temperature and atmosphere pressure. Helium gas permeabilities of nuclear graphite coated with IPyC and APyC of different thickness are studied using a vacuum apparatus. Both the permeation rates of the treated graphite gradually decrease with the increasing thickness of the coatings. The IPyC and APyC coatings can reduce the gas permeability coefficient of the samples by three and five orders of magnitude, respectively. The permeability difference is related to the microscopic structure, i.e., pores, as confirmed by scanning electron microscopy, mercury injection and X-ray tomography experiments. The changes of the permeability owing to heat cycles are observed to be negligible. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：31 / 36

页数：6

共 22 条

[1]

[Anonymous], 2005, 2165012008 GBT, Patent No. GB/T 21650.1-2008/ISO15901-1

[2]

[Anonymous], 2002, US DOE NUCL ENERGY R, P33

[3]

Bettis E.S., 1969, ORNLTM2136, P34

[4]

Briggs R.B., 1971, ORNL4728, P118

[5]

Curie L.M., 1956, P 1 UN INT C PEAC US, V8, P451

[6]

Evans III R.B., 1969, ORNL 4389, P14

[7] SiC coating: An alternative for the protection of nuclear graphite from liquid fluoride salt [J].

He, Xiujie ;

Song, Jinliang ;

Tan, Jie ;

Zhang, Baoliang ;

Xia, Huihao ;

He, Zhoutong ;

Zhou, Xingtai ;

Zhao, Mingwen ;

Liu, Xiangdong ;

Xu, Li ;

Bai, Shuo .

JOURNAL OF NUCLEAR MATERIALS, 2014, 448 (1-3) :1-3

[8] Protection of nuclear graphite toward liquid fluoride salt by isotropic pyrolytic carbon coating [J].

He, Xiujie ;

Song, Jinliang ;

Xu, Li ;

Tan, Jie ;

Xia, Huihao ;

Zhang, Baoliang ;

He, Zhoutong ;

Gao, Lina ;

Zhou, Xingtai ;

Zhao, Mingwen ;

Zhu, Zhiyong ;

Bai, Shuo .

JOURNAL OF NUCLEAR MATERIALS, 2013, 442 (1-3) :306-308

[9] Helium gas permeability of SiC/SiC composite used for in-vessel components of nuclear fusion reactor [J].

Hino, T ;

Hayashishita, E ;

Yamauchi, Y ;

Hashiba, M ;

Hirohata, Y ;

Kohyama, A .

FUSION ENGINEERING AND DESIGN, 2005, 73 (01) :51-56

[10] Gas permeability of SiC/SiC composites as fusion reactor material [J].

Hirohata, Y ;

Jinushi, T ;

Yamauchi, Y ;

Hashiba, M ;

Hino, T ;

Katoh, Y ;

Kohyama, A .

FUSION ENGINEERING AND DESIGN, 2002, 61-62 :699-704

← 1 2 3 →