http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Liu, Xianghuai,Zhang, Feng,Zheng, Zhihong,Huang, Nan The Korean Vacuum Society 1997 Applied Science and Convergence Technology Vol.6 No.1
Titanium oxide films were prepared by ion beam enhanced deposition where the films were synthesized by deposition titianium atoms and simultaneously bombarding with xenon ion beam at an energy of 40 keV in an $O_2$ environ,ent. Structure and composition of titanium oxide films were investigated by X-ray Doffractopm (XRD) Ritjerfprd Backscattering Spectroscopy (RBS) and X-ray Diffraction(XRD) Rutherford Backscattering Spectroscopy (RBS) and X-ray photoelectron spectroscopy (XPS) The results show that thestructure of the prepared films exhibit a rutile phase structure wit high(200) orientation and the O/Ti ratio of the titanium oxide films was about 2:1 XPS anlysis shows that $Ti^{2+},Ti^{3+}\;and\;Ti^{4+}$ chemical states exist on the titanium oxide films. the blood compatibility of the titanium oxide films was studied by measurements of blood clotting time and platelet adhesion. The results show that the anticoagulation property of titanium oxide films improved significantly and better than that of LTI-carbon which was widely used to fabricate artificial heart valve.
Surface Modification of Titanium Based Biomaterials by Ion Beam
Liu, Xianghuai,Huang, Nan,Yang, Ping,Cai, Guanjun,Chen, Yuanru,Zheng, Zhi hong,Zhou, Zhuyao The Korean Vacuum Society 1995 Applied Science and Convergence Technology Vol.4 No.s2
Ion beam enhanced deopsition(IBED) was adopted to synthesize biocompatible titanium oxide film. Structure characteristics of titanium oxide film were investigated by RBS, AES and XRD. The blood compatibility of the titanium oxide film was studied by measurements of blood clotting time and platelet adhesion. The results show that the anticoagulation property of titanium oxide film is improved significantly. The mechanism of anticoagulation of the titanium oxide film was discussed.
An a-D film for flat panel displays prepared by FAD
Liu, Xianghuai,Mao, Dongsheng The Korean Vacuum Society 1998 Applied Science and Convergence Technology Vol.7 No.1
Details are given of an study of the characteristics of field-induced electron emission from hydrogen-free high $sp^3$ content(>90%) amorphous diamond (a-D) film deposited on heavily doped ($\rho$<0.01 $\Omega\cdot\textrm{cm}$) n-type monocrystalline Si(111) substrate. It is demonstrated that a-D film has excellent electron field emission properties. Emission current can reach 0.9 $\mu$A at applied field as low as 1 V/$\mu\textrm{m}$, and emission current density can be obtained about several mA/$\textrm{cm}^2$. The emission current is stable when the beginning current is at 50 $\mu$A within 72 hours. Uniform fluorescence display of electron emission from whole face of the a-D film under the electric field of 10~20 V/$\mu\textrm{m}$ was also observed. It can be considered that the contribution of excellent electron emission property results from its smooth, uniform, amorphous surface and high $sp^3$ content of the a-D films.
Lu Yuehui,Wu Xuemei,Liu Xianghuai,Zhuge Lanjian 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.45 No.3
It is problematic that electrons are emitted from the Mo grid of pulsed-controlled grid traveling wave tubes, caused by the contamination of cathode evaporation material, i.e. BaO. Some studies show that a Mo grid coated with carbon can greatly suppress grid electron emission. However, the reason for the electron emission suppression is not completely clear. To understand the mechanism of electron emission suppression of a BaO/C/Mo system, carbon lms were prepared on Mo substrates at room temperature by means of DIBSD (dual ion beam sputtering deposition), and BaO layers were coated by using a chemical method. Post-annealing was conducted under a owing nitrogen ambient at 700 C for 1.5 hours. The structure of the as-deposited carbon lms was evaluated by TEM, AES and Raman spectroscopy. The annealed samples, the BaO/ Mo and BaO/C/Mo systems, were analyzed by XPS. The results suggest that the chemical reaction between BaO and C at high temperature eliminates the concentrations of Ba or BaO on the surface of the C/Mo system. It can be believed that the high work function material used as the grid surface coating and elimination of BaO on its surface have a critical eect on grid electron emission suppression. Moreover, the carbon lm was characterized by density, homogeneity and high adhesion, owing to the features of DIBSD.
Land and Sea Engineering Geological Model and Division of the Laizhou Bay Coast, China
( Xiaoshuai Song ),( Yonggang Jia ),( Hongxian Shan ),( Xiaolei Liu ),( Yong Zhang ),( Xianghuai Kong ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2
In order to meet the development demands of Laizhou Bay Coastal Zone, there has carried out, including engineering survey, engineering geological drilling, in-situ test (standard penetration test), laboratory test, theoretical analysis and other research methods, in line with the layout of geo-spatial development and its geological environment characteristics. Through the analysis of the essential data, the stratigraphic structure, topography, geological structure and hydrogeological conditions of the study area were obtained. Based on the measured data of 24 engineering geological boreholes and the collected data of 202 boreholes, nine engineering geological layers were determined. And the types of rock and soil, the distribution of poor geological bodies and the engineering geology structural features have been understood. Based on that, the three-dimensional engineering geological model of Laizhou Bay coastal zone was established by using the software Mapgis K9. The image of the model objectively reflected the engineering stratigraphic structure and geological characteristics of the study area. Finally, the land area of the study area was divided into three major engineering geological areas and eight engineering geological sub-areas. Similarly, the sea area was divided into three major areas and six geological sub-areas. This work can provide local government with detailed and reliable basic data for development planning, provide scientific basis for coastal economic construction and sustainable development, and serve land and resources utilization, coastal zone development and management and planning.
MICROSTRUCTURE AND TRIBOLOGY OF $TiB_2$ AND $TiB_2$-TiN DOUBLE-LAYER COATINGS
Yang, Yunjie,Chen, Lizhi,Zheng, Zhihong,Wang, Xi,Liu, Xianghuai The Korean Vacuum Society 1995 Applied Science and Convergence Technology Vol.4 No.s2
$TiB_2$-TiN double-layer coating have been prepared by ion beam enhanced deposition. AES, XRD, TEM and HRTEM were employed to characterize the $TiB_2$ layer. The microhardness of the coatings was evaluated by an ultra low-load microhardness indenter system, and the tribological behavior was examined by a ball-on-disc tribology wear tester. It was found that in a single titanium diboride layer, the composition is uniform along the depth of the film, and it is mainly composed of nanocrystalline $TiB_2$ with hexagonal structure, which resulted from the ion bombardment during the film growth. The hardness of the $TiB_2$ films increases with increasing ion energy, and approaches a maximum value of the $TiB_2$ films increases with increasing ion energy, and approaches a maximum value of 39 Gpa at ion energy of 85 keV. The tribological property of the TiB2 films is also improved by higher energy of 85keV. The tribological property of the $TiB_2$ films is also improved by higher energy ion beam bombardment. There is no major disparity in the mechanical properties of double-layer $TiB_2$/TiN coatings and TiN/$TiB_2$ coatings. Both show an improved wear resistance compared with single-layer $TiB_2$ films. The adhesion of double-layer coatings is also superior to that of single-layer films.