Effects of Electrolysis and Bath Conditions on the Surface Roughness, Morphologyand Crystal Orientation of Zinc Electrodeposit

ABSTRACTUltrathin films of perovskite PbTiO3, 10–100nm thick, were epitaxially grown on miscut (001)SrTiO3 substrate by rf-magnetron sputtering at 600°C. The electron microscope and high resolution x-ray diffraction analysis suggested the evidence of epitaxial growth of (001)PbTiO3/(001)SrTiO3 with three dimensional crystal orientation. The stoichiometric film shows extremely smooth surface with the surface roughness less than 3nm. Deposition on a miscut substrate under stoichiometric conditions is essential to make continuous thin films of single crystal perovskite PbTiO3.

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Study on the Surface Roughness and Crystal Orientation Effects on the Cross Slip under Pure Shear State

The Proceedings of Conference of Hokkaido Branch ◽

10.1299/jsmehokkaido.2002.42.200 ◽

2002 ◽

Vol 2002.42 (0) ◽

pp. 200-201

Author(s):

Shi hua TANG ◽

Michiaki KOBAYASHI ◽

Setsuo MIURA ◽

Hiroyuki FUJIKI ◽

Seiichi OMORI

Keyword(s):

Surface Roughness ◽

Crystal Orientation ◽

Pure Shear ◽

Cross Slip ◽

Orientation Effects ◽

The Cross ◽

Shear State

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Surface Morphology, Crystal Orientation and Scratch Properties of Au/NiCr/Ta Multi-Layered Metallic Films

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.353-358.1863 ◽

2007 ◽

Vol 353-358 ◽

pp. 1863-1866

Author(s):

Wu Tang ◽

Long Jiang Deng ◽

Ke Wei Xu ◽

Jian Lu

Keyword(s):

Surface Roughness ◽

Surface Morphology ◽

Substrate Temperature ◽

Crystal Orientation ◽

Scratch Test ◽

Test Method ◽

Metallic Films ◽

Force Microscopy ◽

Atomic Force ◽

Friction Mode

The crystal orientation, surface morphology, surface roughness and scratch properties of Au/NiCr/Ta multi-layered metallic films was examined by X-ray diffraction (XRD), atomic force microscopy (AFM) and a scratch test method, respectively. It was clarified that the surface morphology and surface roughness depend on the substrate temperature. The surface roughness decreases from 4.259nm to 2.935nm when substrate temperature changed from 100°C to 180°C, and then increases when substrate temperature above 180°C. The XRD revealed that there are only Au diffraction peaks with highly textured having a Au-(111) or a mixture of Au-(111) and Au-(200) orientation. The micro-scratch test reveals that both modes can be used for conventionally critical load determination, but the friction mode can additionally reflect the changes at different metallic film layers, the critical characteristic load was not sensitive to substrate temperature.

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Effect of crystal orientation on inner surface roughness of micro metal tubes in hollow sinking

Materials Science and Engineering A ◽

10.1016/j.msea.2021.140792 ◽

2021 ◽

Vol 805 ◽

pp. 140792

Author(s):

Takuma Kishimoto ◽

Saki Suematsu ◽

Hayate Sakaguchi ◽

Kenichi Tashima ◽

Satoshi Kajino ◽

...

Keyword(s):

Surface Roughness ◽

Crystal Orientation ◽

Inner Surface

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Identifying Key Factors towards Highly Reflective Silver Coatings

Advances in Materials Science and Engineering ◽

10.1155/2017/7686983 ◽

2017 ◽

Vol 2017 ◽

pp. 1-12 ◽

Cited By ~ 5

Author(s):

Bo Zheng ◽

Lai Peng Wong ◽

Linda Y. L. Wu ◽

Zhong Chen

Keyword(s):

Surface Roughness ◽

Single Crystal ◽

Crystal Orientation ◽

Critical Role ◽

Key Factors ◽

Average Roughness ◽

Surface Area Ratio ◽

Significance Level ◽

Arithmetic Average ◽

Polycrystalline Silver

This paper attempts to identify key factor(s) for highly reflective silver (Ag) coatings. Investigation was made over the crystal orientation and surface roughness, using several types of surfaces, including electroplated Ag polycrystal films, physical vapour deposited polycrystal Ag films, and single crystal Ag foils with different crystal orientations. In each type of the surfaces, surface roughness was varied so that, for different combinations of crystal orientation, roughness would elucidate the key factors towards highly reflective Ag coatings. It is found that surface roughness plays a critical role in determining the reflectance, while the crystal orientation has negligible effect. The mean reflectance and one-way ANOVA analysis indicate that the single crystal Ag foils with three orientations performed statistically the same in the same roughness group at significance levelα= 0.05. Moreover, correlation between the surface reflectance and surface roughness has been proposed for the benefit of coating design. Refection data obtained from the polycrystalline silver samples are used to verify the accuracy of the proposed correlations. It was observed that the development surface area ratio,Sdr, is a better roughness indicator in predicting the reflectance of polycrystalline silver films than the arithmetic average roughness,Ra.

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Effect of Sample Size and Crystal Orientation on the Fatigue Behaviour of Single Crystalline Microbeams

Materials ◽

10.3390/ma13030741 ◽

2020 ◽

Vol 13 (3) ◽

pp. 741 ◽

Cited By ~ 1

Author(s):

Jorge Rafael Velayarce ◽

Christian Motz

Keyword(s):

Surface Roughness ◽

Sample Size ◽

Crystal Orientation ◽

Deformation Behaviour ◽

Cyclic Hardening ◽

Surface Damage ◽

Fatigue Behaviour ◽

Beam Deflection ◽

Single Slip ◽

Kink Bands

Beam deflection experiments were used to systematically examine size effects on the low cyclic fatigue (LCF) deformation behaviour of micro-sized bending beams of copper (Cu) single crystals oriented for single slip, critical and coplanar double slip. We present cyclic hardening curves and fatigue surface roughness, as well as dislocations structures of the micro-sized beams with sizes between 1 and 15 µm. A clear crystal orientation and size effect on the cyclic hardening curves, surface roughness, and the dislocation microstructures were observed. Based on the experimental results, the fatigue damage in single slip orientations clearly decreased with decreasing the sample size, however, below a critical size regime, the surface damage suddenly increases. Additionally, samples with sizes larger than 5 µm clearly revealed, besides PSBs-like structures, the emergence of kink bands leading to larger surface roughness in comparison to the smaller ones. Fatigue surface damages in microcrystals oriented for critical double slip became more prevalent compared to single slip orientations. Quantitatively, the correlation of the fatigue surface damage was also demonstrated with the formation of PSBs-like structures.

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