Results 11 to 20 of about 4,759 (134)
Au(111)/咪唑基离子液体界面结构研究:阳离子侧链长度的影响 [PDF]
, 2018 本文结合电化学方法与原子力显微镜力曲线技术,研究了两种烷基侧链长度不同的离子液体BMITFSA和OMITFSA在Au(111)电极表面附近的层状结构的数目和耐受力对电位的依赖性,探究了烷基侧链长度变化对界面层状结构的影响.研究表明,不同烷基侧链长度的离子液体体系力-电位曲线形状基本相似.在零电荷电位(the potential of zero charge,PZC)附近时,力值最小,因为此时电极表面荷电量较小,层状结构不稳定;电位偏离PZC的过程中,第一层层状结构力值呈现先增大后减小的趋势 ...
刘帅 +5 more
core +1 more source
The Morphological Characteristics of Clay Minerals in a Tight Sandstone Reservoir by Atomic Force Microscopy [PDF]
Clay minerals, as one of the main components of unconventional oil and gas reservoirs, have significant implications for the evaluation of unconventional oil and gas reservoirs in terms of their fine characterization of nano/sub-nano morphological ...
Gu DU, Guan WANG, Jiale HE, Kunyang WANG
core +1 more source
Rare Metals, EarlyView.ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang +5 more
wiley +1 more source
Gaoya dianqi, 2020 GIS设备在电力系统中应用广泛,其安全运行具有十分重要的工程意义。文中针对某变电站一起间隔母线气室（220 kV GIS）盆式绝缘子击穿故障,采用扫描电子显微镜、能谱仪等检验手段全方位对气室绝缘击穿原因进行深入分析,并结合返厂解体和设备装配工序检查,明确了该次故障是由于设备装配过程中三相导体不对中产生的额外应力引起盆式绝缘子裂纹导致的,并根据此次故障分析结论,提出了此类故障的防治建议。
刘通 +4 more
doaj
Study on preparation, characterization and thermal conductivity of graphene [PDF]
, 2016 自从石墨烯被发现以来，其一系列优异的性质引起了研究人员广泛的关注。石墨烯的高导热性能可以应用在工业的各个方面。比如石墨烯材料有望在高性能电子器件、复合材料、场发射材料、气体传感器及能量存储等领域获得广泛应用[1]。石墨烯被视为一种很有前途的新型散热材料。目前已经有许多理论分析了石墨烯的导热性能。比如Fourier定律的数解，基于波尔兹曼Boltzmann传输方程和分子动力学Molecular—dynamics(MD)模拟的分析方法等。但是在实验方面 ...
张巍伟
core
Rare Metals, Volume 44, Issue 11, Page 8161-8197, November 2025.Graphical abstract AbstractThe studies on the synthesis of two‐dimensional (2D) Janus materials have made significant progress over the years. They offer new opportunities to increase the potential usage of Janus transition metal dichalcogenide (TMDC) materials in different application areas due to their unique structural, electrical, optical and ...
Ayça Coşkun +9 more
wiley +1 more source
Epitaxial growth of non-polar ZnO films and the related nitrogen-doping studies [PDF]
, 2015 近几十年来，宽禁带化合物半导体ZnO材料由于其自身拥有的诸多优点而越来越受到研究者的重视，然而其p型材料制备的困难依然是制约其在光电器件方面大力发展的瓶颈。本论文的主要研究思想在于从ZnO的结构方面寻求p型掺杂研究的突破。主要是利用分子束外延(MBE)的技术分别在ZnO(10-10)和MgO(100)两种衬底上分别同质和异质外延生长了纤锌矿ZnO(10-10)和立方ZnO(001)两种非极性的薄膜。并对ZnO(10-10)薄膜进行了掺氮的初步探索研究。采用原位的反射高能电子衍射（RHEED ...
王小丹
core
Nanotechnology and Precision Engineering, 2018 The state of the surface of oil droplet can be changed obviously by adding a small amount of surfactant in water. The oil-resisting performance of membranes for water/oil separation has a significant influence on filtration efficiency and life span.
Hu Xiaodong +7 more
doaj +1 more source
, 2008 大气环境下原子力显微镜测试中,毛细力在所有粘着力中占主导地位,毛细力与水膜厚度、相对湿度有关。在本报告中,我们发现,除了上述因素外,毛细力还与两个表面的接触时间有关。通过实验数据的分析,提出了一种液桥形成的模型 ...
赵亚溥, 魏征
core
, 2018 利用双氧水溶液对硅片表面进行预氧化处理,并用改良的RCA法清洗硅片,结合金属辅助化学刻蚀(MACE)制备硅纳米线阵列(Si NWs)。通过表征发现:预氧化清洗相较于传统RCA清洗,能够降低硅片表面微粗糙度,同时提高后续制备的硅纳米线阵列的均匀性。此外,在300～800 nm波段,当硅纳米线的长度相近时,经预氧化清洗制备的硅纳米线阵列反射率降低,当硅纳米线长度为500 nm左右时,反射率降低值大于2.
李燕秋, 渠亚洲, 程其进
core +1 more source