102 Result(s)
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Article
Vapor phase assembly of benzotriazole and octadecylamine complex films on aluminum alloy surface
The complex films of benzotriazole and octadecylamine have been prepared on the surface of aluminum alloy via vapor phase self-assembly method. Their anticorrosion and wettability are investigated by the elect...
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Article
Correlation between surface charge and hydration on mineral surfaces in aqueous solutions: A critical review
Surface charges and hydration are predominant properties of colloidal particles that govern colloidal stability in aqueous suspensions. These properties usually coexist and interact with each other. The correl...
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Article
Vapor phase assembly of urea–amine compounds and their protection against the atmospheric corrosion of carbon steel
Two kinds of polyamine compounds, bis-cyclohexylaminoethylurea (BCAU) and monocyclohexylaminoethylurea (MCAU), are synthesized via Mannich reaction. The anticorrosion films on carbon steel surface are prepared...
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Article
Temperature-stable dielectric properties from 100 to 375 °C in system (K0.495Na0.495La0.01)(Nb0.997Cu0.0075)O3–Bi(Mg0.5Zr0.5)O3
(1−x)(K0.495Na0.495La0.01)(Nb0.997Cu0.0075)O3-xBi(Mg0.5Zr0.5)O3 (abbreviated as KNLNC-xBMZ) ceramics were designed and prepared. The phase transition, microstructure and electrical properties of the ceramics were...
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Article
Effects of Temperature on Fretting Corrosion Between Alloy 690TT and 405 Stainless Steel in Pure Water
In pressurized water reactor, fretting corrosion has become the main reason for the failure of 690TT heat exchanger tubes. The effect of temperature on the fretting corrosion behavior between 690TT tube and 40...
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Article
Erosion–corrosion behavior of SAF3207 hyper-duplex stainless steel
Polarization curves and mass losses of SAF3207 hyper-duplex stainless steel under various conditions were measured. The damaged surfaces after erosion–corrosion tests were characterized by scanning electron mi...
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Article
Gas-liquid mass transfer and flow phenomena in a peirce-smith converter: A numerical model study
A numerical model was established to simulate the flow field in a Peirce-Smith converter bath, which is extensively adopted in copper making. The mean phase and velocity distribution, circular area, and mean w...
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Article
Nonlinear electrical properties and dielectric properties of ZnO ceramics doped with K2CO3
ZnO ceramics with different amounts of K2CO3 from 0.0 to 1.0 mol% are prepared by traditional solid-state sintering technique. The K2CO3-do** effects on the microstructure, nonlinear electrical properties and d...
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Article
Open AccessAtomic Layer Deposition of Buffer Layers for the Growth of Vertically Aligned Carbon Nanotube Arrays
Vertically aligned carbon nanotube arrays (VACNTs) show a great potential for various applications, such as thermal interface materials (TIMs). Besides the thermally oxidized SiO2, atomic layer deposition (ALD) w...
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Article
Laser Ablation Synthesis, Structure, and Exchange Bias of Mn4C/MnO Powders
Magnetic powders containing ferrimagnetic Mn4C phase and antiferromagnetic MnO phase were prepared from a Mn-C alloy by using the laser ablation method. The Mn-C alloys were composed of Mn4C and α-Mn(C) solid sol...
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Article
Preparation of Sm-Fe-N by High-Pressure N2 Nitridation and Sm2Fe17 by a Diffusion Process
A direct diffusion method starting from Fe powders and Sm was developed for large-scale synthesis of high-purity Sm2Fe17. This method is different from the traditional process in that it is a low-cost, simple, on...
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Article
Microstructure and Mechanical Properties of Tortoise Carapace Structure Bio-Inspired Hybrid Composite
A turtle carapace bio-inspired Ti matrix hybrid composite was successfully fabricated in this work. This composite incorporates two parts: the Ti–Al intermetallic multilayered composite and continuous SiC fibe...
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Article
Interface microstructure and bond strength of 1420/7B04 composite sheets prepared by diffusion bonding
The effect of temperature on interface microstructure and shear strength of 1420 Al–Li alloy and 7B04 Al alloy composite plates prepared by diffusion bonding were investigated. The results indicate the optimum...
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Article
Gas–liquid mass transfer and flow phenomena in the Peirce–Smith converter: a water model study
A water model with a geometric similarity ratio of 1:5 was developed to investigate the gas-liquid mass transfer and flow characteristics in a Peirce–Smith converter. A gas mixture of CO2 and Ar was injected into...
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Article
Phase transformation of ZrO2 doped with CeO2
Thermal barrier coatings (TBCs) protection is widely used to prolong the lifetime of turbine components. The outermost layer of TBCs is ceramic layer, whose function is heat insulation, and the main compositio...
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Article
Fracture behavior of a composite composed by Ti-aluminide multi-layered and continuous-SiCf-reinforced Ti-matrix
In the present work, a novel hybrid composite composed of Ti-aluminide multi-layered part and continuous-SiCf-reinforced Ti-matrix part using a vacuum hot pressing/hot isostatic pressure (VHP/HIP) sintering proce...
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Article
Investigation of microstructural evolution and electrical properties for Ni-Sn transient liquid-phase sintering bonding
Ni/Ni-Sn/Ni sandwiched simulated package structures were successfully bonded under low temperature and low pressure by Ni-Sn transient liquid-phase sintering bonding. The results show that, after isothermally ...
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Article
Linkages among fiber content, porosity and local aggregation in fiber-reinforced composites, and their effect on effective properties
Adequate micro-modeling for composites is the basic and key precondition for their property prediction. This study takes fiber-reinforced composites (FRCs) as an example and focuses on the linkages among fiber...
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Article
Open AccessBand Offsets and Interfacial Properties of HfAlO Gate Dielectric Grown on InP by Atomic Layer Deposition
X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy have been used to determine interfacial properties of HfO2 and HfAlO gate dielectrics grown on InP by atomic layer deposition....
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Article
Open AccessTwo-stage reduction for the preparation of ferronickel alloy from nickel laterite ore with low Co and high MgO contents
The preparation of ferronickel alloy from the nickel laterite ore with low Co and high MgO contents was studied by using a pre-reduction–smelting method. The effects of reduction time, calcination temperature,...
