The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The WC-Co composite nano-coatings bonded strongly with steel substrate has been made by vacuum fusion sintering (VFS). Diffusion plays a crucial role in VFS processes, of which the atoms diffusion nearby interface is a vital variable which influences the interfacial bond strength. The atoms diffusion during the vacuum fusion sintering (VFS) process was firstly studied by molecular dynamics and by...
In this paper, nano-porous silica aerogels were prepared via sol-gel process with acid/base two-step catalysis technique. Silica aerogel structure can be effectively controlled by changing experimental parameter. Ultralow density silica aerogel with density as low as 3.4 mg/cm3 has been successfully prepared. Transmission electron microscope (TEM), gas chromatography/mass spectrometry (GC/MS) and...
The golden-like (Ti, Zr)N film with nanometer level, which has higher rigidity and better corrosion resistance than TiN film, was deposited by reactive magnetron sputtering on slides and Al substrates. The crystalline phase was analyzed by XRD, morphology and electronic structures were detected by atomic force microscopy (AFM) on AFM.IPC-208B developed by Chongqing University. The results of XRD show...
ZnS thin films were obtained with modified chemical bath deposition (CBD). The parameters which concern the growth and properties of the films including the concentration of the sources, pH value of the solution, the deposition temperature were optimized. A variety of complexing agents were employed, which played important roles in the formation of the thin films. The microstructure and the optical...
Nano-sized ZnO crystals with catalytic, electrical, optoelectronic, and photochemical properties have been considered as an important candidate in both fundamental research and practical studies. However, controllable synthesis of ZnO in morphology and size with a simple method under mild conditions still represents a challenge. We proved that ZnO nanostructures, including particles and nanorods,...
A pyrolytic carbon film electrode was fabricated by the low temperature chemical vapor deposition (CVD) method. This report deals with the preparation and electrochemical behavior of this carbon film. To characterize the surface structure, scanning electron microscopy was applied. Also, cyclic voltammetry and chronocoulometery were applied to evaluate the electrochemical properties
Electrochemical machining (ECM) is an anodic dissolution process of metal as anode ion by ion, and micro-ECM is a promising micro machining method at micro to mesoscale. Thus, a micro-ECM setup was developed to fabricate micro parts and explore the feasibility of micro-ECM at micro to mesoscale, including the design of high-frequency micro-energy pulse power supply. By using the detection unit of...
Lead zirconate titanate (PZT) powder with fibroid morphology was prepared via hydrothermal synthesis and heat treatment using organic mineralizer, tetramethylammonium hydroxide pentahydrate (TMAH). The structure and morphology of the resultant fibers were investigated by X-ray diffraction (XRD) analysis and transmission electron microscope (TEM) observation, The TMAH concentration, hydrothermal reaction...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.