Preparation and Thermodynamics of Nickel-Phosphor Deposition on Surface of Quartz Optical Fiber by Electroless Plating

2011 ◽  
Vol 322 ◽  
pp. 432-435
Author(s):  
Bo Quan Jiang ◽  
Zheng Qiang Xiao
Keyword(s):  
Electron Microscope ◽  
Optical Fiber ◽  
Ph Value ◽  
Fiber Surface ◽  
Electroless Nickel ◽  
Optimal Conditions ◽  
Single Factor ◽  
Quartz Optical Fiber ◽  
Scanning Electron ◽  
Strength Of Adhesion

The electroless nickel-phosphor deposition on quartz optical fiber surface was carried out by single factor test. The optimum NiSO4·6H2O, NaH2PO2·H2O , C3H6O2 and H3BO3 concentrations, pH value and temperature were determined to be: 0.1331 mol/L, 0.3019 mol/L, C3H6O20.3761 mol/L, H3BO3 0.4520 mol/L, 4.5 and 84°C, respectively. Scanning electron microscope, stereomicroscope and thermal shock rest were applied to measure the morphology and strength of adhesion of the deposited Ni-P coating. The result showed that a desired Ni-P coating with good smoothness and adhesion was prepared under the optimal conditions. The thermodynamic models were established and proven by the current study.

Research on Flocculation Behavior in Diethyl Phthalate Removal from Water by Using Anionic Flocculants P(AM-AA-AMPS)

2013 ◽  
Vol 361-363 ◽  
pp. 726-729 ◽  
Author(s):  
Jiang Ya Ma ◽  
Huai Li Zheng ◽  
Xiao Min Tang ◽  
Wei Chen ◽  
Wen Wen Xue ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Ph Value ◽  
Optimal Conditions ◽  
Single Factor ◽  
Initial Ph ◽  
Stirring Time ◽  
Flocculation Process ◽  
Scanning Electron ◽  
Significant Factors ◽  
Factor Technique

Flocculation process with P(AM-AA-AMPS) as flocculants was used for the DEP removal from water. The structure and morphologies of the flocculants was characterized by scanning electron microscope (SEM). To maximize the DEP removal efficiency, single factor technique and an orthogonal array L9 (34) were employed to optimize the factors of dosage, initial pH value and stirring time. The results show that the optimal conditions are dosage of 10mg·L-1, initial pH value of 9 and stirring time of 6min. Moreover, flocculants dosage is the best significant factors in DEP removal.

Mechanism and Application Prospects of Sewage Sludge Conditioning with Fly-Ash

2014 ◽  
Vol 878 ◽  
pp. 679-688 ◽  
Author(s):  
Min Yue ◽  
Meng Zhang ◽  
Bin Liu ◽  
Chun Yuan Ma
Keyword(s):  
Electron Microscope ◽  
Fly Ash ◽  
Sewage Sludge ◽  
Specific Resistance ◽  
Raw Materials ◽  
Single Factor ◽  
Sludge Cake ◽  
Application Prospects ◽  
Scanning Electron ◽  
Skeleton Structure

The effects of fly-ash on dewatering of sewage sludge were studied according to sludge specific resistance (SSR), dehydrated speed, and moisture content of sludge cake as investigation indexes through single-factor experiments by contrasting to cationic polyacrylamide (PAM). The results showed that SSR kept decreasing with the rising of fly-ash dosage. When the dosage of fly-ash was 0.02 g/(ml sludge), SSR reduced by 65.2%. When the dosage of fly-ash was over 0.03 g/(ml sludge) adding with PAM, the dehydrated speed will be increased by three fourths. Through the analyses of Zeta potential, scanning electron microscope (SEM) observation, combined with the dehydration experiments, it was thought that the mechanism of fly-ash on dewatering of sewage sludge was that their particles evenly dispersed in sludge floc skeleton structure and thus decreased the SSR and improved the permeability of the sludge cake. The disposal of dewatering sludge and recycling approaches after fly-ash condition were also discussed. They can be used as landfill or as raw materials in building fields.

OMG Neutral Deinking Technical Conditions and Mechanism

2011 ◽  
Vol 236-238 ◽  
pp. 1351-1354 ◽  
Author(s):  
Xiao Lin Zhang ◽  
Ru Min Wang
Keyword(s):  
Electron Microscopy ◽  
Fiber Surface ◽  
Single Factor ◽  
Sem Images ◽  
Operation Conditions ◽  
Microscope Images ◽  
Before And After ◽  
Distribution State ◽  
Single Factor Experiment ◽  
Scanning Electron

Single factor experiment was used to investigate neutral deinking technology of old magazine paper (OMG) by self-compounded NTM-2 deinking agent. Olympus inverted biological microscope were used to research distribution state of ink particles in the secondary pulp before and after deinking treatment. Scanning electron microscopy (SEM) was used to analyze fiber surface changing during neutral deinking and ink particles dispersing behaviors in the paper. The results showed that NTM-2 deinking agent had a good deinking effect to OMG, optimum operation conditions of neutral deinking was NTM-2 0.5%, deinking temperature 50°C, deinking time 40min, repulper time 25s, pulp consistence 1.0%, and floatation time 6 min. Under these conditions, brightness of the deinked pulp increased 8.4%SBD, and the ink removal efficiency reached by 90%. Olympus inverted biological microscope images showed that there were a large number of ink particles in the un-treated pulp, and these ink particles integrated with fibers tightly. After treated by neutral deinking, most of ink particles were separated from the fiber, dispersed and suspended in the pulp evenly. SEM images indicated that there were little ink particles in the secondary paper, the fiber surface turned more smoother, and the clean degree would nearly corresponding to the effect of alkaline deinking.

Nickel Deposition on Pre-Electroless Plated Ni-P-B Coating on Quartz Optical Fiber in a Lanthanide Oxide-Added Watt Electroplating Bath

2011 ◽  
Vol 199-200 ◽  
pp. 421-425
Author(s):  
Bo Quan Jiang ◽  
Jiang Nan Zeng ◽  
Yu De Liu ◽  
Xiao Hong Liu
Keyword(s):  
Optical Fiber ◽  
Deposition Rate ◽  
Current Density ◽  
Fiber Surface ◽  
Nickel Deposition ◽  
Lanthanide Oxide ◽  
Surface Method ◽  
Quartz Optical Fiber ◽  
The Common ◽  
Experimental Values

Lanthanide oxide was added into the common Watt bath to make a thick nickel on the Ni-P-B coating on the quartz optical fiber surface by response surface method. The experiment showed the optimum concentrations of NiSO4•6H2O, CH3（CH2）11OSO3Na and La2O3 as well as current density were separately 220g/L, 0.08g/L, 0.9g/L and 1.0 A/m2 under which the deposition rate reached 24.2μm/h. The established model had an agreement with the experimental values and can be used to predict the deposition rate within the experimental range. The experiment also showed that the deposition rate, structure and other physical properties of the Ni coating prepared with addition of La2O3(0.9g/L) were greatly improved compared with the sample prepared without addition of La2O3 under same conditions.

scholarly journals Optimal Conditions for Acquiring Cathodoluminescence (CL) Images Using a Cold-Field Emission Scanning Electron Microscope

2006 ◽  
Vol 12 (S02) ◽  
pp. 1524-1525 ◽  
Author(s):  
JL Mey ◽  
AV Klaus
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Field Emission ◽  
Optimal Conditions ◽  
Scanning Electron

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2005

Preparation of Mirabilite Microparticles via the Anti-Solvent Recrystallization Process

2020 ◽  
Vol 20 (5) ◽  
pp. 3071-3077
Author(s):  
Da-Wei He ◽  
Zhou Wang
Keyword(s):  
Electron Microscopy ◽  
Average Particle Size ◽  
Average Particle ◽  
Recrystallization Process ◽  
Solvent Ratio ◽  
Mixing Ratio ◽  
Optimal Conditions ◽  
Single Factor ◽  
Stirring Time ◽  
Scanning Electron

Mirabilite microparticles was prepared via the anti-solvent recrystallization process. The solvent-antisolvent system was constructed by adding saturated aqueous solution of mirabilite into absolute ethanol. The best mixing mode and the mixing ratio, the stirring time and the droplet acceleration were selected by single factor experiments. Scanning electron microscopy (SEM) was used to characterize the generated mirabilite microparticles. The optimal one-factor conditions were solvent-anti-solvent ratio of 1:4, stirring for 40 min and droplet acceleration of 2 mL·min−1. Under the optimal conditions, the mirabilite microparticles with complete hexahedral form and uniform surface were obtained, the average particle size was about 5 μm.

Fabrication of Accurate Diamond - Metal Composite Cutting Blade by Electrotyping Method

2006 ◽  
Vol 304-305 ◽  
pp. 57-61
Author(s):  
L.L. Fang ◽  
Bing Lin Zhang ◽  
Ning Yao
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Ph Value ◽  
Photoemission Spectroscopy ◽  
Metal Composite ◽  
X Ray Diffraction ◽  
Electrolytic Solution ◽  
X Ray ◽  
Scanning Electron

In this paper, we report that the experimental results of fabricated diamond-metal composite film. Electrotyping method was used to deposit the thick film. During the deposition, low internal stress electrolytic solution, the electric current density of cathode, PH value, temperature, the distance between cathode and anode, the pretreatment of motherboard cathode were selected simultaneously. It was found that stirring strongly affected the quality of the film. Especially stirring velocity affected the distribution of diamond grains. Scanning electron microscope (SEM), X-ray photoemission spectroscopy (XPS) and X-ray diffraction (XRD) were used to measure the surface morphology, the crystal microstructure, diamond grains distribution and the chemical environment of the film.

Microwave-Assisted Hydrothermal Preparation of YVO4:Eu3+ Phosphor

2010 ◽  
Vol 663-665 ◽  
pp. 417-420
Author(s):  
En Guo Wang
Keyword(s):  
Electron Microscope ◽  
Ph Value ◽  
Doping Amount ◽  
Hydrothermal Preparation ◽  
X Ray ◽  
Microwave Assisted ◽  
Preparation Conditions ◽  
Microwave Hydrothermal ◽  
Microwave Hydrothermal Method ◽  
Scanning Electron

YVO4:Eu3+ phosphors were prepared by microwave hydrothermal method in this work. YVO4:Eu3+ phosphors were probed by photoluminescence (PL), X-ray powder diffraction (XRD) and scanning electron microscope (SEM). The effects of different preparation conditions on the photoluminescence, the structure and the morphology of YVO4:Eu3+ phosphors were studied. The experiment results show that the pH value and the Eu3+ doping amount have some important effect on the photoluminescence and the morphology of YVO4:Eu3+phosphors.

Chitosan Phase Change Fiber Rheology and its Performance Study

2014 ◽  
Vol 1048 ◽  
pp. 130-133
Author(s):  
Ling Gao ◽  
Lai Jiu Zheng ◽  
Ju Wei ◽  
Bing Du ◽  
Peng Peng Yin
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Phase Change ◽  
Average Molecular Weight ◽  
Fiber Surface ◽  
Solution Viscosity ◽  
Performance Study ◽  
Prolonged Standing ◽  
Basic Characteristics ◽  
Scanning Electron

Optional viscosity average molecular weight of chitosan 3 × 105, the nanophase change microcapsules were mixed in the preparation chitosan spinning dope. Viscometer was used to measure the rheological properties of blend spinning fluid, using infrared spectroscopy,scanning electron microscope (SEM) and the interactions between the studies of phase change fiber surface microstructure. The results show that, blend spinning fluid is generally the basic characteristics of non-Newtonian fluid, with concentration of spinning solution, viscosity increases; temperature rise, viscosity decreased; prolonged standing, viscosity decreased. Chemical changes occurred between chitosan and microencapsulated phase change,no new chemical bonds, for a simple physical blending. By scanning electron microscope, along with the increase in the amount of phase change nanomicrocapsule, fiber surface is obvious.

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