Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Lifu Hei"'
Autor:
Yun Zhao, Chengming Li, Jinlong Liu, Kang An, Xiongbo Yan, Lifu Hei, Liangxian Chen, Junjun Wei, Fanxiu Lu
Publikováno v:
Materials, Vol 12, Iss 15, p 2492 (2019)
In the present investigation, a nitrogen-doped multilayer homoepitaxial single crystal diamond is synthesized on a high-pressure high temperature (HPHT) Ib-type diamond substrate using the microwave plasma chemical vapor deposition (MPCVD) method. Wh
Externí odkaz:
https://doaj.org/article/eaef7c53291d4ed78c5b452b3e0a2167
Autor:
Yin-long Lv, Fu Zhenhui, You-Hang Liu, Chang-Wei Loh, Tao Ge, F. L. Wu, Ming Qi, Lifu Hei, Jia-liang Zhang, Yaoqian Li, Fanxiu Lv
Publikováno v:
Nuclear Materials and Energy, Vol 22, Iss, Pp-(2020)
Single crystal diamond (SCD) detector is considered a candidate for the upgrade of Forward Calorimeter (FCal) in the foreseen HL-LHC. In order to investigate their radiation hardness, two SCD detectors were irradiated with 100 MeV protons up to the f
Autor:
Kang An, Wei Junjun, Chen Liangxian, Zhao Yun, Xiongbo Yan, Chengming Li, Lifu Hei, Liu Jinlong
Publikováno v:
Diamond and Related Materials. 87:267-273
Slightly graphitization might be incurred on CVD diamond films when suffering instantaneous high temperature thermal shock. In this paper, phase transitions of CVD free-standing diamond films have been studied experimentally at the temperature range
Autor:
Chenyi Hua, Fanxiu Lv, Liu Jinlong, Sheng Liu, Kang An, Hao Liu, Lifu Hei, Yichao Wang, Chengming Li, Wei Junjun, Chen Liangxian
Publikováno v:
Applied Surface Science. 431:152-159
This paper is focused on the in-plane crushing of two-dimensional (2D) porous structures with a special attention on the effect of functionally graded (FG) porosities. The dynamic response and energy absorption of closed-cell metal foams with differe
Publikováno v:
International Journal of Minerals, Metallurgy, and Materials. 24:1424-1430
Optical centers of single-crystal diamond grown by DC arc plasma jet chemical vapor deposition (CVD) were examined using a low-temperature photoluminescence (PL) technique. The results show that most of the nitrogen-vacancy (NV) complexes are present
Autor:
Wei Junjun, Lifu Hei, Chen Liangxian, Zhi-hong Feng, Chenyi Hua, Liu Jinlong, Jianchao Guo, Chengming Li
Publikováno v:
Diamond and Related Materials. 76:74-78
The growth process of carbon film on the surface of hydrocooling copper substrate in high-density direct current (DC) arc plasma was studied. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, nuclear magnetic r
Autor:
Liu Jinlong, Chengming Li, Jianchao Guo, Lifu Hei, Chenyi Hua, Wei Junjun, Xiongbo Yan, Chen Liangxian
Publikováno v:
Surface and Coatings Technology. 320:279-283
Y 2 O 3 films with different microstructures were deposited through radio frequency magnetron sputtering. The optical properties and the antireflection effects of the cubic and the monoclinic Y 2 O 3 films on diamond substrates were investigated. Res
Autor:
Xiongbo Yan, Liu Jinlong, Lifu Hei, Chen Liangxian, Wei Junjun, Chengming Li, Jianchao Guo, Chenyi Hua
Publikováno v:
Diamond and Related Materials. 75:12-17
The addition of titanium (Ti) interlayer was verified to reduce the residual stress of diamond films. The evolution of interfacial stress during the cooling process is critical for the fabrication of large-area crack-free diamond films, so it is very
Autor:
Chenyi Hua, Lifu Hei, Liu Jinlong, Chen Liangxian, Wei Junjun, Chengming Li, Xiongbo Yan, Jianchao Guo
Publikováno v:
Diamond and Related Materials. 73:39-46
Polycrystalline CVD free-standing diamond films have been heat treated through a rapid heating process using a direct current (DC) arc plasma jet system within the temperature range of 1500–2000 °C. The optical transmission of the diamond film dec
Autor:
Wei Junjun, Chenyi Hua, Lifu Hei, Xiongbo Yan, Liu Jinlong, Chen Liangxian, Chengming Li, Jianchao Guo
Publikováno v:
Diamond and Related Materials. 73:62-66
The CVD diamond films at different growth stages were prepared on the same substrate by DC arc plasma jet CVD. The surface morphologies and residual stress of diamond films were characterized by scanning electron microscope and Raman spectroscopy. Th