共搜索到2011条信息,每页显示10条信息,共202页。用时:0小时0分0秒437毫秒
......
Kinetics of Synthesis of YAG Nanocrystals by Ultrasound and Ultrasound-Microwave-Assisted Methods司伟,WANG Xiuhui,TIAN Ding,GAO HongLiaoning Key Laboratory for Fabrication and Application of Super-fine Inorganic Powders, School of Materials Science and Engineering,Dalian Jiaotong University摘 要:The Y3Al5O12(YAG) nanocrystals were synthesized by ultrasound......
Trans. Nonferrous Met. Soc. China 28(2018) 775-782 Comparative kinetic analysis of conventional and ultrasound-assisted leaching of scheelite by sodium carbonate Jin-hong YANG, Li-hua HE, Xu-heng LIU...: For further comprehending the mechanism of the intensification of ultrasound for extraction, the difference of leaching kinetics between the ultrasound-assisted and conventional sodium carbonate leaching......
Detection of stacking orientation error of CFRP composite laminates using ultrasound waves Sun-Kyu KIM1, David HSU2, Young-Hwan SEO3, Kwang-Hee IM4 1. Division of Mechanical System... and these material properties using ultrasound. Especially, fiber laminates often possess strong in-plane elastic anisotropy attributable to the specific fiber orientation and layup sequence[12]. One......
超声和水声用压电复合材料的研究进展 吴孟强1,张树人1,王冬梅1 (1.电子科技大学电子薄膜与集成器件国家重点实验室,成都,610054) 摘要:压电复合材料相比普通压电陶瓷具有高的灵敏度,低的声阻抗及良好的柔韧性等优点,是制作超声和水声换能器的首选材料.综述了1-3和3-3型压电复合材料的传统及最新制备工艺技术特点,概述了该研究领域的主要理论成果,重点介绍了有限元方法在压电复合材料研究中的应用,并总结了压电复合材料在超声和水声换能器件方面的研究进展.在此基础上提出了压电复合材料在器件应用中面临并亟待解决的几个问题. 关键词:压电复合材料; 工艺; 有限元法; 超声换能; piezoelectric composites; processing; finite element method; ultrasound transducer; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 30(2020) 1102-1110 Enhancement of galena-potassium ethyl xanthate flotation system by low power ultrasound Can GUNGOREN1, Yasin BAKTARHAN1, Ismail DEMIR1, Safak... and conditioning time. The results showed that, the maximum micro-flotation recovery of 77.5% was obtained with 30 W ultrasound power and 2 min conditioning time. In addition, more negative zeta potential values......
nanocomposite coatings by pulse electrodeposition under ultrasound condition XUE Yu-jun1, 2, LIU Hong-bin1, LAN Ming-ming1, KU Xiang-chen1, LI Ji-shun1, 2 (1. School of Mechatronics Engineering...) Abstract: The Ni-CeO2 nanocomposite coatings were prepared by pulse electrodeposition with the imposition of ultrasound. The high temperature oxidation resistance of the Ni-CeO2 nanocomposite......
......
:1672-7207(2016)03-1071-07 Effects of ultrasound condition on flocs characteristics of drinking water treatment sludge GUO Xuan, YANG Yanling, LI Xing, ZHOU Zhiwei, WU Yan (College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China) Abstract: The effects of ultrasound frequencies (25 kHz and 40 kHz), energy density (0.025-7.000 W/mL) and sonication time (0-30......
nanocomposite coatings. While the ultrasound is introduced in the pulse electrodeposition process, the strong stirring action and the cavitating effect of ultrasound not only promot the uniform distribution... pulse electrodeposition, which possess finer grains and highest microhardness, exhibit the lowest friction coefficient and the best wear-resistance. Key words: electrodeposition; ultrasound; Ni-CeO2......