Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Dang-Hui Wang"'
Autor:
Tian-Han Xu, Dang-Hui Wang
Publikováno v:
Journal of the Optical Society of Korea. 20:125-129
In this study, we have investigated a high-temperature AlN nucleation layer and AlGaN epilayers on c-plane sapphire substrate by low-pressure metal-organic chemical vapor deposition (LP-MOCVD). High resolution X-ray diffraction (HRXRD), atomic force
Publikováno v:
Chinese Physics B. 28:018505
Publikováno v:
Advanced Materials Research. 662:258-261
The corrosion resistance of Ultra-fine grain (UFG) chromium bronze, prepared by Equal-channel angular pressing (ECAP) processing, was investigated in HCl solution at room temperature and atmospheric pressure by electrochemistry technique and immersio
Publikováno v:
Applied Mechanics and Materials. :2465-2468
The service life of material is much related with its corrosion resistance. Thus, the investigation on corrosion behavior is important for the better use of material. In this paper, the corrosion behavior of deformed chromium bronze experienced diffe
Autor:
Linxia Zhang, Shan Ai, Fanna Meng, Shengrui Xu, Jincheng Zhang, Dang-Hui Wang, Hao Zhou, Yue Hao
Publikováno v:
Science China Physics, Mechanics and Astronomy. 55:2383-2388
In this study, the thick AlGaN epilayers have been grown on the c-plane sapphire substrate and the free-standing GaN substrate using low-temperature AlN nucleation layers by low-pressure metal-organic chemical vapor deposition (LPMOCVD). High resolut
Autor:
Linxia Zhang, Shan Ai, Zhi-Wei Bi, Yue Hao, Fanna Meng, Jincheng Zhang, Ke Chen, Dang-Hui Wang, Shengrui Xu
Publikováno v:
Journal of the Korean Physical Society. 61:618-622
In this study, we report on the crystal quality of InGaN epifilms with different indium fractions grown at different growth temperatures on c-plane sapphire substrates with an AlN nucleation layer by using low-pressure metal-organic chemical-vapor de
Publikováno v:
Materials Science Forum. 695:89-92
The effects of the atomizing pressure on the microstructures and properties of the lead-free solder powder by the supersonic atomizer method were investigated. The microstructures of the brazed joint of solder paste were also observed. The results sh
Publikováno v:
Advanced Materials Research. :2795-2798
Microstructure and low-frequency noise test were measured for N80 steel casing drilling, through SEM analyzed their morphology. Results showed that: (1) power spectral density of 1/f noise increases two orders of magnitude after fatigue crack growth.
Autor:
Dang Hui Wang, Tian Han Xu
Publikováno v:
Advanced Materials Research. :224-227
Electrical parameters and low-frequency noise test were measured for N80 steel casing drilling, through extracting low-frequency parameters and combining with conventional fatigue crack growth characterization methods and analyzing their morphology.
Publikováno v:
Advanced Materials Research. :1647-1650
The paper reports on an investigation of the fracture mechanism of both tensile and impact fracture in three types of casing-drilling steels. The results show that the tensile fracture surface of N80 steel includes fibrous zone, radiation area and sh