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High quality hollow diamond shell for inertial confinement fusion

被引：1
|
作者：
Wang, Tao [1 ]
Wang, Jian [2 ]
Liu, Yansong [1 ]
He, Xiaoshan [1 ]
He, Zhibing [1 ]
机构：
[1] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Sichuan, Peoples R China
[2] Southwest Univ Sci & Technol, Sch Math & Phys, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China
来源：
DIAMOND AND RELATED MATERIALS | 2023年 / 135卷
关键词：
ICF; MPCVD; Diamond; Ablator; RENEWABLE ENERGY; CARBON-FILMS; PLASMA;
D O I：
10.1016/j.diamond.2023.109885
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diamond shell with outstanding physical and chemical properties is a promising ablator material for the inertial confinement fusion (ICF) application. In this paper, high-quality hollow diamond shells were synthesized through multiple steps. Microstructure, chemical bonding, sphericity, wall thickness uniformity, and mass density of the diamond shell were characterized by scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and X-ray camera, respectively. Results show that the diamond shell composed of large amount of sp(3) bonded carbon was very compact and free of cracks. The sphericity and wall thickness uniformity were about 93 % and 95 %, respectively. Mass density of the diamond film was higher than 3.2 g/cm(3) when 1 vol% of CH4 was introduced. At relative low CH4 concentrations, secondary nucleation sites emerged at the grain boundaries and on the faceted crystal plane of micron-sized grains.
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页数：6
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