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Online since: June 2021
Authors: Ming Xie, Sai Bei Wang, Yong Tai Chen, Shang Qiang Zhao, Ji Heng Fang
(3) Design of new composite systems or composite structures.
Velmurugan, et al, Facile fabrication of highly efficient, reusable heterostructured Ag-ZnO-CdO and its twin applications of dye degradation under natural sunlight and self-cleaning, Royal Society of Chemistry Advance. 4 (2014) 4353-4362
Shubin, Synthesis of Ag/ZnO mixture for powdered contact materials, Russian Journal of Applied Chemistry. 87 (2014) 405-411
Otmani, Mechanical alloying/milling//Handbook of mechanical nano structuring, John Wiley & Sons.
Huang, Infulence of process technology on the structure and properties of Ag-ZnO electric contacts, Powder Metallurgy Industry. 6 (1996) 35-38
Online since: January 2011
Authors: Jia Liu, Shu Sheng Jia
Nano-ZnO: the average particle size is 20nm, which was from Changchun Institute of Applied Chemistry, Chinese Academy of Sciences.
Through a series of trainings, the structure of the model was finally determined as 5*8*1.
The nonlinear model on process parameters and mechanical properties in which the structure was 5*8*1 can be more accurately fit test sample data, the error is less than 1.5%, and the relevant index was very close to 1.
Online since: August 2011
Authors: Cheng Yu Guo, Jian Chao Wang, Bi Qing Chen, Shu Hai Wang, Mei Feng Yun
Electrochemical preparation of Ce-Mg-Ni Alloy Film in Acetamide-Urea-NaBr Melting System Chengyu Guo a, Jianchao Wang b, Biqing Chenc, Shuhai Wangd,Meifeng Yun e Department of Chemistry, Qinghai Normal University, Xining 810008, PR China aguocy6508@163.com,bwangjc@qhnu.edu.cn,cchenbq2332@163.com , dshuhaiw@yahoo.cn,eyunmeifeng@163.com Keywords: Acetamide-Urea-NaBr molten salt electrolyte; Electro-deposition; Inductive co-deposition; Ce-Mg-Ni alloy film; Amorphous alloy; Rare Earth Elements Abstract.
Relevant crystal structure and electrochemical performance of magnesium-based hydrogen storage materials have been investigated in details [10-12].
Chemical compositions of Ce-Mg-Ni alloy films obtained at different electrolysis time under a cathodic potential of -0.725 V t/min w(Ce)/% w(Mg)/% w(Ni)/% 10 29.52 2.48 68.00 20 34.11 2.46 63.43 30 39.70 4.55 55.75 40 16.65 3.52 79.83 Micro-structure and morphology analysis on the deposited alloy film From the surface morphology of the Ce-Mg-Ni alloy film, it can be seen that a dense, uniform deposited film well dispersed on the copper substrate.
Online since: May 2007
Authors: David H. StJohn
The increased use of light metals has the potential to significantly increase manufacturing efficiency and reduce product cost through the adoption of manufacturing production technology that produces integrated structures to replace assemblies of multiple heavier components.
The collaborative structure of CAST is central to the development of the detailed planning and technology to support the implementation of the LMAA recommendations across the sector.
The surface chemistry allows high quality electroplating at a similar cost as for zinc diecastings.
Online since: November 2012
Authors: Javaan Chahl
Subsystem Improvement Technology COTS Hobby UAS Battery Energy Density Chemistry Y y Propeller Efficiency Aerodynamics Y Y Wing Efficiency Aerodynamics y Y Motor Efficiency Electromechanics Y Y Actuators Robust Precision Electromechanics Y Y Payloads Performance Imaging Y y UAS in this class are limited by their payload capacity and performance which are the basic characteristics of any operational aerial system.
Perhaps deep stall recovery and break-apart structures would qualify as innovation.
Issues in bearings, actuators, structures and autonomy for efficient utilisation of energy will need to be overcome.
Online since: September 2011
Authors: Jing Song, Lin Liu, Yun Qing Zhu, Si Chen
Carbon nanotubes (CNTs) are promising choices of lubricating additives due to their tubular structure and superior mechanic properties.
FTIR spectrum of PI film confirms its chemical structure.
Li: Materials Chemistry and Physics, Vol. 94 (2005), p. 109 [15] J.
Online since: December 2013
Authors: Evgeniy Viktorovich Shesterikov, Alena Igorevna Malchikhina, Sergei I. Tverdokhlebov
Microscopic research shows that the coatings obtained by RFMS are uniform, repeat initial implant surface morphology and don’t have its own macro and microporous structure that is explained by their atomic growth mechanism.
Scanning electron microscopy images of CaP coatings, cross-section structure and surface morphology (insertions in figures) (thickness of 1.6 microns) formed on Si at different working gases: a - Ar; b - Ar + O2; c - O2.
Fukui, Cristal chemistry of hydroxyapatite deposited on titanium by sputtering technique, Bio-Med.
Online since: September 2013
Authors: Vasiliki Anagnostopoulou, Anastasia Pournou
In historic buildings, load bearing timber structures are often found colonized by several fungi species and various members of insects [4].
De Zeeuw, Textbook of wood technology: Structure, identification, properties and uses of the commercial woods of the United-states and Canada, McGraw-Hill Book Company, 1980, 722 pp
Greenspan, Humidity fixed points of binary saturated aqueous solutions, Journal of research of the National Bureau of Standards, Physics and Chemistry Vol. 81 A, No. 1, (1977)
Online since: September 2018
Authors: Dmitry Lipchansky, Yuliya Murashkina
.), Epoxy Resins, Chemistry and Technology, 2nd ed., Marcel Dekker Inc., New York, 1988, pp. 1-9
Zhang, Research of nanocomposite structure of boron nitride at proton radiation, IOP Conf.
Chizhik, Structure and properties of polyaniline nanocomposite coatings containing gold nanoparticles formed by low-energy electron beam deposition, Appl.
Online since: October 2018
Authors: Xue Qiang Dong, Tai Xiong Guo, Chang Rong Ran
Selverian et al. shows that [15], with the increase of cooling rate, the undercooling of uncoagulated bath increases, Si particle formed in the overlay increases, and then the coating structure is refined by either physically constraining the growth of the Al-rich dendrites, or by providing numerous heterogeneous nucleation sites for the Al-rich dendrites.
Furthermore, to explore the origins of mini spangle formation, the surface conditions of cold rolled strips and the coating structure of normal spangle and mini spangle samples were analyzed by JSM-5600LV scanning electron microscope (SEM) equipped with INCA energy disperse spectroscopy (EDS) and GDS850A glow discharge spectrometer (GDS).
Materials Chemistry and Physics, 2012, 133: 419-428