A5101984730- Magnesium Alloys: Properties and Applications
- Corrosion Behavior and Inhibition
- Magnesium Oxide Properties and Applications
- Quantum Dots Synthesis And Properties
- Hydrogen Storage and Materials
- Aluminum Alloys Composites Properties
- Bauxite Residue and Utilization
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Layered Double Hydroxides Synthesis and Applications
- Materials Engineering and Processing
- Metallurgical Processes and Thermodynamics
- Metal Alloys Wear and Properties
- Magnetic Properties and Applications
- Nanowire Synthesis and Applications
- Microstructure and Mechanical Properties of Steels
- Coal and Its By-products
- Metal and Thin Film Mechanics
- ZnO doping and properties
- Concrete and Cement Materials Research
- Advanced ceramic materials synthesis
- Extraction and Separation Processes
Zhengzhou University
2017-2024
Zhengzhou University of Industrial Technology
2019-2023
Effect of the second phase in micro-galvanic corrosion a commercial Mg alloy containing rare earth elements, cast WE43 alloy, was investigated 0.6 M NaCl solution and Na2SO4 by scanning electron microscopy (SEM) observations, Kelvin probe force (SKPFM) analysis, hydrogen evolution, weight loss measurement, electrochemical techniques. It is confirmed that more active than matrix exhibits an anodic role with α-Mg as cathode dissolves preferentially solution, contrast to situation solution. The...
The corrosion behavior of Mg-7Nd and Mg-10Y binary alloys were investigated through scanning electron microscope observation, hydrogen evolution, weight loss experiment electrochemical test. It was found that the rates two are mainly influenced by micro-galvanic between second phase α-Mg matrix, phases (Mg12Nd Mg24Y5) have a higher activity than matrix act as an anode to corrode preferentially during process. alloy has faster rate due fact it contains more containing Nd elements is reactive....
Spent Pot Lining First Cut (shortened to SPL-1cut) is a solid waste discharged from primary aluminum electrolytic production process. SPL-1cut classified as hazardous in China because it contains large amounts of soluble sodium fluoride and tiny amount cyanide. Most carbon-about 65%-and its calorific value 22.587 MJ∙kg-1. There high level SPL-1cut-about 15%-and randomly distributed the carbon granule. The recycling using dolomite reactant, based on characteristics two-step decomposition at...
The corrosion behavior and resistance of WE43 AZ80 immersed in NaCl Na2SO4 solutions were investigated, respectively. Two alloys 0.6 M solution to observe the morphologies. Hydrogen evolution weight loss experiments conducted obtain rates. Electrochemical tests used characterized detailed situation. results show that, when solution, alloy shows a unique micro-galvanic behavior. On other hand, rate is much faster than that which direct opposite most magnesium alloys. protection surface film...
Adjusting the microstructure through deformation process is one of ways to improve properties Mg alloys. Most studies have focused on influence after treatment mechanical In this paper, extruded and forged Mg-Gd-Y-Nd-Zr alloys were selected investigate corrosion performance two deformed magnesium immersed in 0.6 M NaCl solution using a hydrogen evolution test, weight loss an immersion experiment, electrochemical test. The results showed that WE43 undergoing different treatments presented...
We report on the synthesis of CuInTe₂ nanoparticles and their function in photovoltaic equipment, such as solar cells. Under certain conditions, nanocrystals form shape with nanocrystals, nanorods or nanocubes. It was found that CuTe could be converted to by addition an In reactant. were synthesized using this method.
As a kind of potential biomedical material, Mg-Ca alloy has attracted much attention. However, the role Ca-containing intermetallics in microgalvanic corrosion is still controversial. In 0.6 mol/L NaCl and Na2SO4 solutions, behavior second phase Mg matrix Mg-Al-Ca alloys was examined. It confirmed that Mg2Ca acts as microanode both with acting cathode Al2Ca microcathode to accelerate adjacent matrix. also found Cl- SO42- have different sensibilities corrosion.
We report a novel synthesis of monodisperse samples copper telluride with crystallinity and stoichiometry corresponding to forms rickardite, Cu3-x Te2 (x < 1). This makes use ligand balanced reaction allow control over shape size by varying the relative absolute concentration oleylamine stearic acid. The rickardite presented here display dependent plasmon peaks in near infrared direct energy band gaps between 1.7 2.3 eV. As such they may find utility photovoltaic, thermoelectric or as...
The microstructure of austempered ductile iron was investigated by electron backscatter diffraction technique. results show that the orientation relationship between acicular bainitic ferrite and austenite is Greninger–Troiano relationship. A single grain divided into four packets each packet contains six variants share a {011}α (i.e., {111}γ) plane. When two γ grains are twinned, twins {111}γ plane have seven packets. adjacent plates (or laths) sharing 〈 001 〉 axis small misorientation...
CdSe/Cu core/shell nanowires (NWs) are successfully synthesized by a wet chemical method for the first time. By utilizing solution–liquid–solid (SLS) mechanism, CdSe NWs fabricated Bi seeds, which act as catalysts. In subsequent radial overcoating of Cu shell on NWs, Fe ions have been proven to be an indispensable and efficient catalyzer. The thickness could well controlled in range 3 6 nm varying growth temperature (from 300 360 °C). Our synthetic strategy pioneers new possibility synthesis...
In the preparation of magnesium by Pidgeon process, phenomenon slag pellets sticking on wall reduction pot always appear, and glaze inner is difficult to remove. The mechanism this studied in work X-ray fluorescence spectrometer (XRF) measurement, electron probe microanalyzer scanning (EPMA) analysis, differential calorimetry (DSC) thermodynamic calculations. main components are MgO, Ca12Al14F2O32, CaF2, CaO, a small amount Ca4Si2O7F2. solid-liquid transition temperature Ca12Al14F2O32 CaF2...
This paper comprehensively introduces a new magnesium production technology the compound-vertical-retort technology, involving in related fundamental researches, core equipment development, working flow, and technical characteristics. Scale-up test an annual 1200-ton-magnesium demonstration-level was conducted to confirm rationality, reliability, advancement of equipment, system process design. It is indicated that solved series problems traditional silicothermic including adhesion glaze,...
CuIn<sub>x</sub>Ga<sub>1−x</sub>Se<sub>2</sub> (CIGS) nanowires were synthesized for the first time through an <italic>in situ</italic> cation exchange reaction by using CuInSe<sub>2</sub> (CIS) as a template material and Ga-OLA complexes Ga source.
In order to suppress the interfacial reaction between ceramic shell mold and magnesium molten alloy during investment casting process, a material with high thermodynamic stability based on alkaline zirconium sol (CH4NO3Zr) binder corundum (Al2O3) powder was prepared. The effects of materials thicknesses were investigated by an optical microscope, X-ray diffraction, scanning electron energy dispersive spectroscope analysis. results suggested that poured conventional ZrSiO4 has serious...