共搜索到33025条信息，每页显示10条信息，共3303页。用时：0小时0分0秒559毫秒
diamond/SiC/Al composites 图3 镀钛和非镀钛金刚石/碳化硅/铝复合材料中金刚石表面铝基体粘附的SEM像 Fig.3 SEM images of diamond surface with adherent aluminum in Ti-coated(a) and uncoated(b) diamond/SiC/Al composite 对于金刚石... show that the aluminum matrix adheres to all the faces of Ti-coated diamond, which is different from the selective adhesion phenomenon observed in the uncoated diamond composites, the interface......
(Ti)对薄膜中元素Ti和Zn的价态无明显影响,均以TiO2和ZnO形式存在,但比值的大小影响薄膜退火后TiO2中锐钛矿/金红石异质结的数量；n(Zn)/n(Ti)越大,复合薄膜的光响应范围及吸光度越大,其响应光谱最大可扩展150 nm,波长可至450 nm,但异质复合薄膜光催化效果与其并不对应,取决于ZnO对TiO2复合薄膜微观结构的影响,当n(Zn)/n(Ti)为1/9.3时,薄膜的降解速率最...Trans. Nonferrous Met. Soc. China 23(2013) 3643-3649 Effect of Zn and Ti mole ratio on microstructure and photocatalytic properties of magnetron sputtered TiO2-ZnO heterogeneous composite film Li......
以钛酸四正丁酯为钛源制备超细Ti(C1-xNx)粉体徐卓,吴一,顾强,邹正光,龙飞,沈天宇桂林理工大学材料科学与工程学院,有色金属材料及其加工新技术教育部重点实验室摘 要:以有机钛源钛酸四正丁酯(Ti(OC4H9)4)与纳米碳黑(C)为反应原料制备超细Ti(C1-xNx)粉体.经过计算可知两者理论质量比约为...平均粒度也呈增大趋势,平均粒度分布区间为220275nm.关键词:Ti(C1-xNx)粉体;钛酸四正丁酯;粒径;碳热还原;溶胶凝胶;......
Effects of honing treatment on AIP-TiN and TiAlN coated end-mill for high speed machining Jae-Young HEO1, Sung-Hak CHO2, Tae-Jin JE2, Kwang-Ho KIM1, Hyung-Woo LEE1, Myung-Chang KANG1 1. National..., Yuseong-Gu, Daejeon 305-343, Korea Received 21 April 2010; accepted 10 September 2010 Abstract: The objective of this work is to compare the tool performance of TiN and TiAlN coated carbides end......
出调整建议. 关键词:钛合金；锻造；有限元模拟 中图分类号:TF 804.3 文献标志码:A FEM simulation of forging of Ti alloy YU De-jun1, BAI Chun-guang1, XU Dong-sheng1, LI Wei-qing2, HE Shu-lin2, LEI... analysis after the simulation under different deformation condition, hammer overlapping, and forging process. Key words: Ti alloy; forging; TEM simulation 钛合金因具有较高的比强度和耐蚀性能等,是最具潜力的轻型结构材料之一,近年来受到极大关......
成果表明,钎料合金的强碳化物元素Ti与金刚石反应形成TiCX (X=0.47~0.97),碳化钛的原子间以很强的共价键结合,并能有效地降低金刚石的界面能,实现液态Cu-Sn-Ti钎料对金刚石的润湿,并通过毛细作用完成铺展和包覆过程.通过图5(b)所示的能谱线扫描发现,Cu,Sn和Ti元素在金刚石界面处的偏析规律与图4中的分析结果相吻合. 图4 金刚石钎焊界面处Cu-Sn-Ti合金SEM微观结构及EDS分析 Fig. 4 Microstructure and elements distribution of Cu-Sn-Ti alloy surrounding diamond 图5 金刚石界面SEM微观结构及元素分布特征 Fig. 5 Microstructure and elements distribution of brazed......
的界面结构,并具有较低的界面结合能.Cr掺杂倾向于偏析到界面上取代Cu,而Ti惨杂倾向于占据界面处的填隙位.虽然这两种元素的偏析趋势都较弱,其偏析可以显著提高界面的结合性能,从而强化界面. 关键词:铜；铬；钛；石墨烯；掺杂；界面；第一性原理 (Edited by Wei-ping CHEN) Foundation item: Project (2018YFE0306100) supported...Trans. Nonferrous Met. Soc. China 29(2019) 1721-1727 Enhanced Cu/graphene adhesion by doping with Cr and Ti: A first principles prediction Yang LIU1,2, Gang WANG1, Yi-ren WANG1, Yong JIANG1,3, Dan......
. Noncrystal SiO2 was coated on the surface of nano-TiO2 to form silica gel polymer with a Ti-O-Si bond, while aluminum compound exists in the form of AlOOH and part Al(OH)3. The integrated dense film can... with Al2O3/SiO2 The IR spectra of coated specimens are shown in Fig.4. The absorption peak at 1 096 cm-1 is caused by flex vibration of Si-OH group, the one at 891 cm-1 by Si-O-Si and Ti-O-Si bond......
Ti基氮化处理对IrO2-Ta2O5涂层阳极服役性能的影响闫镇威,孟惠民,金 莹(北京科技大学 腐蚀与防护中心,北京 100083)摘 要:采用热分解法制备钛基IrO2-Ta2O5涂层阳极,钛基体经喷砂和酸蚀处理后分别在550,600,650,700和750 ℃下的高纯氮气气氛下进行氮化处理,研究钛基体氮化处理对IrO2-Ta2O5涂层钛阳极寿命和电催化活性的影响.结果表明:经550 ℃氮化处..., Corrosion and Protection Center, University of Science and Technology of Beijing, Beijing 100083, China)Abstract:IrO2-Ta2O5 coated titanium anodes were prepared by thermal decomposition, and Ti substrate......
为80A时, 薄膜硬度达到最大值. 4) 随Cr含量的增大, 所得(Ti, Cr)N复合薄膜择优取向发生变化, 从(111)晶面变为(200)晶面. REFERENCES [1]韩修训, 阎鹏勋, 刘维民, 等. 两种物理气相沉积氮化钛涂层的结构及摩擦性能研究[J]. 摩擦学学报, 2002, 22(3): 175-179. HAN Xiu-xun, YAN Peng-xun, LIU..., Chen M L, Lai K L. Corrosion resistance of TiN/TiAlN-coated ADI by cathodic arc deposition[J]. Mater Sci Eng A, 2006, 421: 182-190. [6]杨巧勤, 赵立华, 赵南方, 等. 硼含量对Ti-B-N纳米复合涂层纤维结构与性能的影响[J]. 稀有金属材料与工程, 1998......
