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Article
Modeling surface effects on hydrogen permeation in metals
A new mathematical model for analyzing hydrogen permeation in solids, in which surface effects and traps influence hydrogen transport, is presented and solved. The new model combines the McNabb and Foster equa...
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Article
The effect of ion implanting on hydrogen entry into metals
The effectiveness of platinum ion implanting in mitigating hydrogen entry into 4340 steel is measured and quantified. Data are presented to compare the extent of hydrogen absorption by the substrate during ele...
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Article
Processing of Al–SiCp Metal Matrix Composites by Pressureless Infiltration of SiCp Preforms
An optimum method for producing Al-SiCp metal matrix composites was developed by determining the optimum conditions for wetting SiC by aluminum and the optimum parameters for pressureless infiltration of SiCp pre...
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Article
Optimum parameters for wetting silicon carbide by aluminum alloys
The effect of magnesium and silicon additions to aluminum, free silicon on the SiC substrate, nitrogen gas in the atmosphere, and process temperature on the wetting characteristics of SiC by aluminum alloys ar...
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Article
The role of silicon in wetting and pressureless infiltration of SiCp preforms by aluminum alloys
Silicon plays an important role in the production of Al/SiC metal matrix composites. As an alloying element in aluminum, silicon retards the kinetics of the chemical reactions that result in the formation of t...
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Article
Grain growth at the free surface of WC-Co materials
The grain growth rate at the free surface of a WC-Co material was measured at different high temperatures and the microstructure and elemental composition of the material were characterized at various stages o...
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Article
Characterization of the kinetic and mechanistic differences between free-surface and bulk grain growth in WC-Co materials
The rate of grain growth at different high temperatures in the bulk and at the free surface of a WC-Co substrate was measured. The microstructure, phase evolution, and elemental composition at the free surface...
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Article
Focused ion beam milling: A practical method for preparing cast Al-Si alloy samples for transmission electron microscopy
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Authors’ reply
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Authors’ reply to reply of discussion on “nucleation mechanism of eutectic phases in aluminum-silicon hypoeutectic alloys”
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Article
Electrical conduction mechanisms and dielectric constants of nanostructured methyl violet 2B thin films
The uniform thin films of methyl violet 2B, MV2B, with thicknesses ranged from 96 to 300 nm, have been successfully prepared by spin coating technique. X-ray diffraction showed that the powder and pristine thi...
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Article
Erratum to: The effect of long term aging on the structural and optical properties of nano metallo-tetraphenylporphine films
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Article
The effect of long term aging on the structural and optical properties of nano metallo-tetraphenylporphine films
Thickness of 200 nm of NiTPP film is prepared by thermal evaporation technique under vacuum 10−6 torr as a candidate of nano metallo-tetraphenylporphine to study long aging. The prepared films are amorphous in na...
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Article
Facile synthesis, characterizations, and impedance spectroscopic features of Zn(II)-bis Schiff base complex films towards photoelectronic applications
Complexation of Zn2+ with pyridyl Schiff base (ZnL2) was synthesized. The ZnL2 was examined and characterized using the elemental analysis, NMR, IR, UV-Vis, and mass spectra. ZnL2 was formed within 1:2 molar rati...
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Article
Electrical and Photovoltaic Responses of an Au/Coumarin 337/n-Si/Sb-Au Hybrid Organic–Inorganic Solar Cell
Thin films of coumarin 337 (C-337) dye were fabricated on n-type silicon (111) wafer using a high-vacuum thermal evaporation technique. Investigation of their structure using x-ray diffraction analysis and scanni...
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Article
Exploring illumination effect on the impedance spectroscopy and dielectric dispersion of 5, 10, 15, 20-tetrakis(4-methoxyphenyl)-21H, 23H-porphine cobalt(II)/silicon heterojunction photovoltaic
The dynamic properties of a hybrid heterojunction based on a small molecule of 5, 10, 15, 20-tetrakis (4-methoxyphenyl)-21H, 23H-porphine cobalt(II), CoTMPP, grown onto p-Si wafer have been studied using impedanc...
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Article
Conservation laws, optical molecules, modulation instability and Painlevé analysis for the Chen–Lee–Liu model
In this paper, we will compute the conservation laws (CLs) of Chen–Lee–Liu equation (CLLE) with the help of scaling invariance technique. We will use Euler and Homotopy operators for the evaluation of conserve...
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Article
Raman spectroscopy and optical constants of nanostructured oxovanadium(IV) tetraphenylporphyrin thin films
Oxovanadium(IV) tetraphenylporphyrin (VOTP) thin films were prepared by thermal evaporation technique. The structural investigation and surface morphology of the VOTPP films were characterized by X-ray diffrac...
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Article
Optical solitons to birefringent fibers for coupled Radhakrishnan–Kundu–Lakshmanan model without four-wave mixing
The article investigates optical soliton to Radhakrishnan–Kundu–Lakshmanan (RKL) equation in birefringent fibers which involving two component form for vector solitons in telecommunication system. The optical ...
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Article
Blueshifted dielectric properties and optical conductivity of new nanoscale nickel-(II)-tetraphenyl-21H,23H-porphyrin films as a function of UV illumination for energy storage applications
Pristine thermally evaporated nickel-(II)-tetraphenyl-21H,23H-porphyrin (NiTPP) thin films are amorphous, but after 4 and 8 h of UV illumination, the films become crystalline with preferred orientations of (11...