共搜索到20524条信息,每页显示10条信息,共2053页。用时:0小时0分0秒812毫秒
J. Cent. South Univ. Technol. (2008) 15(s1): 333-336 DOI: 10.1007/s11771-008-375-2 Rheological properties of asphalt mixtures containing various fibers YE Qun-shan(叶群山)1, WU Shao-peng(吴少鹏)2... properties can be improved significantly by the addition of various fibers. The dynamic modulus increases with the increase of frequency, and the phase angle decreases with the increase of frequency. When......
; iron railings; silicon carbide powders; carbothermal reduction; [全文内容正在添加中] ......
of temperature from 900 °C to 1100 °C. Results of XRD combined with SEM reveal that swelling behavior of pellets is decided by structure of newly formed metal iron grains. The formation and growth of fibers... reduction; hot preheated pellets; swelling index; fibers iron 1 Introduction Direct reduced iron has been considered as necessary feeds in the production of high quality steel. Compared with traditional......
-song (School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China) Abstract: A novel method for fabricating the silicon carbide ceramic preforms by using... are in accord with its CAD model. Key words: silicon carbide ceramic; preforms; selective laser sintering; surface modification; laser energy density ......
Sub-micron-structure machining on silicon by femtosecond laser Hung-Yin TSAI 1, Shao-Wei LUO1, Chih-Wei WU 2, Shing-Hoa WANG 2 1. Department of Power Mechanical Engineering, National...-micron-structure machining on silicon substrate was studied by direct writing system of femtosecond laser with the central wavelength of 800 nm, pulse duration of 120 fs and repetition rate of 1 kHz......
temperature increasing. Key words: magnesium; silicon carbide; composite 镁基复合材料具有高的比强度, 比刚度, 阻尼性能, 耐磨性及耐高温性能, 因而在对轻质高强材料需求迫切的航空航天, 汽车等高技术领域中具有良好的应用前景. 对非连续增强体增强镁基复合材料的制备, 力学性能, 耐磨性, 界面反应和结构等进行了较多的研......
under atmospheric pressure without the need of expensive vacuum equipment and therefore permits the on-line processing for surface treatment of continuous fibers [6-7]. However, the disadvantage... plasma set-up A stainless hollow cylinder was used as the chamber for the air DBD plasma treatment of PBO fiber, which permitted the on-line processing for surface modification of continuous fibers [9......
necessary to investigate the fabrication technology of such rods. The continuous unidirectional solidification(CUS) process is an effective method for aluminum silicon rods containing unidirectional... Crystal preferential orientation of Al-1.0%Si alloy in continuous unidirectional solidification process ZHANG Hong(张 鸿)1, WANG Zi-dong(王自东)1, XIE Jian-xin(谢建新)1, CHEN Ya-jun(陈亚军)2, WANG Ying-wei......
Materiae Compositae Sinica, 2002, 19(4): 46-50. [17] NARDONE V C, PREWO K M. On the strength of discontinuous silicon carbide reinforced aluminum composites [J]. Scripta Metal, 1986, 20: 43-48. ...: Effects of the volume fraction and the size of crystallized alumina silicate short fibers as well as heat treatment processes on micro-yield strength(MYS) of Al2O3-SiO2(sf)/Al-Si metal matrix composite......
, Zhang L T. Carbon/silicon carbide composites prepared by chemical vapor infiltration combined with silicon melt infiltration[J]. Carbon, 1997, 37(8): 1179?1187. [5] 闫联生, 李贺军, 崔 红, 王 涛. "CVI+压力PIP"混合工艺..., 79(4): 873?800. [9] Fitzer E, Gadow R. Fiber-reinforced silicon carbide[J]. Am Ceram Soc Bull, 1986, 65(2): 326?335. [10] 日本炭素材料学会编, 新炭素材料入门[M]. 中国金属学会炭素材料专业委员会编译, 1999: 1?5.The carbon society......