Growth morphology of thin films on metallic and oxide surfaces

Krupski, A.

doi:10.1088/0953-8984/26/5/053001

Cited by 6 publications

(4 citation statements)

References 240 publications

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“…The Ni 3 Al alloys surfaces, including the Ni 3 Al(111) and Ni 3 Al(001) surfaces, have been investigated experimentally [141,142,143] and theoretically [144,145,146], and are often used as a substrate in studies of a variety of different surface phenomena such metal thin film growth (e.g., Pb/Ni 3 Al(111) [143]), oxidation (e.g., Al 2 O 3 /Ni 3 Al(111) [147], Al 2 O 3 /NiAl(110) [148]) and the formation of more complex systems like CuPc/Al 2 O 3 /Ni 3 Al(111) [149] or Fe/Al 2 O 3 /Ni 3 Al(111) (Figure 25) [150]. The Ni 3 Al can be seen as a model system for use as a template for a well-ordered Al 2 O 3 surface [142,147], which is suitable for studies with several surface sensitive investigation methods requiring electric conductivity.…”

Section: Applications Of Ni3al-based Alloysmentioning

confidence: 99%

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Applications of Ni3Al Based Intermetallic Alloys—Current Stage and Potential Perceptivities

2015

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The paper presents an overview of current and prospective applications of Ni3Al based intermetallic alloys—modern engineering materials with special properties that are potentially useful for both structural and functional purposes. The bulk components manufactured from these materials are intended mainly for forging dies, furnace assembly, turbocharger components, valves, and piston head of internal combustion engines. The Ni3Al based alloys produced by a directional solidification are also considered as a material for the fabrication of jet engine turbine blades. Moreover, development of composite materials with Ni3Al based alloys as a matrix hardened by, e.g., TiC, ZrO2, WC, SiC and graphene, is also reported. Due to special physical and chemical properties; it is expected that these materials in the form of thin foils and strips should make a significant contribution to the production of high tech devices, e.g., Micro Electro-Mechanical Systems (MEMS) or Microtechnology-based Energy and Chemical Systems (MECS); as well as heat exchangers; microreactors; micro-actuators; components of combustion chambers and gasket of rocket and jet engines as well components of high specific strength systems. Additionally, their catalytic properties may find an application in catalytic converters, air purification systems from chemical and biological toxic agents or in a hydrogen “production” by a decomposition of hydrocarbons.

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Section: Applications Of Ni3al-based Alloysmentioning

confidence: 99%

“…The Ni 3 Al can be seen as a model system for use as a template for a well-ordered Al 2 O 3 surface [142,147], which is suitable for studies with several surface sensitive investigation methods requiring electric conductivity.…”

Section: Applications Of Ni3al-based Alloysmentioning

confidence: 99%

Applications of Ni3Al Based Intermetallic Alloys—Current Stage and Potential Perceptivities

2015

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“…Ultra-thin epitaxial film systems exhibit a variety of interesting properties due to the strong correlation between the electronic structure of the film and its morphology, strain, and defect structure [1,2,3,4,5,6,7,8,9,10]. Structural studies of fcc/fcc systems provide a great deal of information on the connection between the geometrical properties of the adsorbed atomic layers and the atomic arrangements of the substrates.…”

Section: Introductionmentioning

confidence: 99%

Structure Determination of Au on Pt(111) Surface: LEED, STM and DFT Study

et al. 2015

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Low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional theory (DFT) calculations have been used to investigate the atomic and electronic structure of gold deposited (between 0.8 and 1.0 monolayer) on the Pt(111) face in ultrahigh vacuum at room temperature. The analysis of LEED and STM measurements indicates two-dimensional growth of the first Au monolayer. Change of the measured surface lattice constant equal to 2.80 Å after Au adsorption was not observed. Based on DFT, the distance between the nearest atoms in the case of bare Pt(111) and Au/Pt(111) surface is equal to 2.83 Å, which gives 1% difference in comparison with STM values. The first and second interlayer spacing of the clean Pt(111) surface are expanded by +0.87% and contracted by −0.43%, respectively. The adsorption energy of the Au atom on the Pt(111) surface is dependent on the adsorption position, and there is a preference for a hollow fcc site. For the Au/Pt(111) surface, the top interlayer spacing is expanded by +2.16% with respect to the ideal bulk value. Changes in the electronic properties of the Au/Pt(111) system below the Fermi level connected to the interaction of Au atoms with Pt(111) surface are observed.

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“…Additional work has shown a connection between tin surfaces and subsequent corrosion of tin finishes. According to conclusions within these computational and experimental studies, the surface energy of specific orientations of the metal lattice is shown to impact the behavior of both surface growth rate and finishes undergoing corrosion processes [33][34][35][36]. However, to our best knowledge, there is no study suggesting specific connections between surface energies of tin and the overall finish's corrosion and tin whisker propensities.…”

Section: Introductionmentioning

confidence: 95%

The surface energies of β-Sn — A new concept for corrosion and whisker mitigation

Eckold

Sellers

Niewa

et al. 2015

Microelectronics Reliability

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Corrosion data provided under high-temperature and high-humidity conditions as well as tin whisker growth studies are explained by differences in the surface energy of lattice planes within the crystal structure of β-tin. For this purpose, electrodeposited tin finishes were investigated regarding their microstructure utilizing X-ray diffraction, cross-sectional SEM and EBSD analysis. The corrosion as well as the tin whisker propensity strongly depends on the preferred orientation of the surface finishes. With an increasing texture along the (211) lattice plane a decreasing corrosion and whisker propensity was observed, in contrary, the presence of the (101) and (112) textures results in an increased corrosion and whisker propensity. The maximum whisker length was reduced by one order of magnitude by changing the preferred orientation towards the (211) lattice plane of the tin finish. Modified embedded-atom method simulations of tin surfaces demonstrate the minimization of the surface energy of (211) surfaces, whereas the surface energies of the (101) and (112) Miller planes are increased. We find a strong connection between the minimization of surface energy and the corrosion and tin whisker propensity of electrodeposited tin finishes. To our best knowledge, this is the first study connecting the influence of the electrodeposition parameters on the corrosion and whisker propensity explained by calculations of the surface energies of

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Growth morphology of thin films on metallic and oxide surfaces

Cited by 6 publications

References 240 publications

Applications of Ni3Al Based Intermetallic Alloys—Current Stage and Potential Perceptivities

Applications of Ni3Al Based Intermetallic Alloys—Current Stage and Potential Perceptivities

Structure Determination of Au on Pt(111) Surface: LEED, STM and DFT Study

The surface energies of β-Sn — A new concept for corrosion and whisker mitigation

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