Synthesis and Characterization of 3Y-TZP by Gel Solid-State Method

2011 ◽  
Vol 412 ◽  
pp. 61-64
Author(s):  
Xiao Bo Wu ◽  
Da Zhi Sun ◽  
Dan Yu Jiang ◽  
Hai Fang Xu ◽  
De Xin Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Sintering Behavior ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
X Ray ◽  
Powder Particles ◽  
State Method ◽  
Average Size

3Y-TZP powder has been successfully synthesized by gel solid-state method. The structural phases of powder particles were analyzed by X-ray diffraction and the morphology was analyzed by scanning electron microscopy. The average size of grains was 230 nm. The sintering behavior, mechanical properties and microstructure of 3Y-TZP ceramics sintered by this powder were investigated. The experiment results showed that the mechanical properties of ceramics were excellent.

Facile Solid State Method Route Synthesis and Enhance Visible Light Activities of BiVO4 by Doping Co

2016 ◽  
Vol 703 ◽  
pp. 316-320
Author(s):  
Hai Feng Chen ◽  
Jing Ling Hu ◽  
Bing Xu
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Catalytic Effect ◽  
Catalytic Properties ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
Illumination Time ◽  
X Ray ◽  
State Method

Using NH4VO3, Bi (NO3)3•5H2O and Co (NO3)2•6H2O as raw materials, Co doped BiVO4 (Co/BiVO4) photocatalysts were successfully prepared by solid state method. And the photo catalytic properties were test in this work. Crystal structures of these samples were characterized by X-ray diffraction (XRD). The Methyl Orange (MO) was simulated as the sewage under the visible light to explorer the influence of the illumination time and the mass of photocatalyst. The visible-light absorption spectrum of BiVO4 was broadening with doping Co. It was found that the Co/BiVO4 had higher photocatalytic activity than pure BiVO4 .The reason of enhanced catalytic effect also had been analyzed and discussed in the article.

scholarly journals Making and Characterization of Limnpo4 Using Solid State Reaction Method for Lithium Ion Battery Cathodes

2019 ◽  
pp. 583-588
Author(s):  
Adelyna Oktavia ◽  
Kurnia Sembiring ◽  
Slamet Priyono
Keyword(s):  
Solid State ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Solid State Reaction Method ◽  
Raw Material ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
X Ray ◽  
General Investigation

Hospho-material of olivine, LiMnPO4 identified as promising for cathode material generation next Lithium-ion battery and has been successfully synthesized by solid-state method with Li2Co3, 2MnO2, 2NH4H2PO4 as raw material. The influence of initial concentration of precursors at kalsinasi temperatures (400-800 ° C) flows with nitrogen. The purity and composition phase verified by x-ray diffraction analysis (XRD), scanning electron microscopy (SEM), spectroscopy, energy Dispersive x-ray Analysis (EDS), Raman spectra. General investigation shows that there is a correlation between the concentration of precursors, the temperature and the temperature of sintering kalsinasi that can be exploited to design lithium-ion next generation.

scholarly journals Synthesis, Crystal Structure, and Electrical Properties of a New Molybdylarsenate LiNa5K3Mo11As3O45

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Hamadi Hamza ◽  
Mohamed Faouzi Zid ◽  
Ahmed Driss
Keyword(s):  
Crystal Structure ◽  
Electrical Conductivity ◽  
Solid State ◽  
Inorganic Compound ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
One Dimensional ◽  
X Ray ◽  
Triclinic System ◽  
State Method

LiNa5K3Mo11As3O45 is a new inorganic compound. It was synthesized by a solid state method. The crystal structure has been studied by single crystal X-ray analysis. The R-values reached 2.8%. The title compound crystallizes in the triclinic system, space group P-1, with a = 10.550 (2) Å, b = 11.723 (2) Å, c = 17.469 (3) Å, α = 102.35 (3)°, β = 87.61 (2)°, and γ = 111.03 (3)°. The anionic unit [Mo11As3O45]9− is formed by nine MoO6 octahedra, two MoO5 trigonal bipyramids, and three AsO4 tetrahedra. The association of [Mo11As3O45]9− units, running along [010], leads to a one-dimensional framework. Li, K, and Na are located in the space surrounding the anionic ribbons. This material was characterized by SEM microscopy, IR spectroscopy, and powder X-ray diffraction. The electrical conductivity was investigated from 528 K to 673 K by impedance complex followed by DSC spectroscopy.

Synthesis and Characterization of Magnesium Diboride Additions of Bi-2223 on the Microstructure and Superconducting Transition

2019 ◽  
Vol 290 ◽  
pp. 233-238 ◽  
Author(s):  
Arlina Binti Ali ◽  
Abdul Halim Shaari ◽  
Soo Kien Chen ◽  
Julie Juliewatty Mohamed ◽  
Nurul’ain Mohd Kamal ◽  
...  
Keyword(s):  
Volume Fraction ◽  
Magnesium Diboride ◽  
Superconducting Transition ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
Metallic Behavior ◽  
Volume Percentage ◽  
X Ray ◽  
State Method

In this paper, solid state method was using to synthesize the of magnesium diboride (MgB2) added in Bi 1.6Pb 0.4Sr2Ca2Cu3Oδ(Bi-2223) superconductor from 0.00 to 0.10 wt.%. The effect on additions were investigated through X-ray Diffraction (XRD), resistance-temperature (R-T) measurement and Scanning Electron Microscope (SEM). From the XRD result, volume fraction of Bi-2223 showed the highest volume percentage was 76 % correspond to addition with MgB2=0.02 wt.% and slightly decreased the percentage while increased the additions. From the R-T measurement, all samples showed the metallic behavior in the normal state. Morphology images showed that the grains were flaky plates and the size slightly increased. These results revealed that, additions of magnesium diboride change the microstructure and decrease the superconducting transition.

Synthesis and Characterization of LiVOPO4 Cathode Material by Solid-State Method

2012 ◽  
Vol 554-556 ◽  
pp. 436-439 ◽  
Author(s):  
An Ping Tang ◽  
Ze Qiang He ◽  
Jie Shen ◽  
Guo Rong Xu
Keyword(s):  
Solid State ◽  
Cathode Material ◽  
Lithium Ion ◽  
Chemical Diffusion ◽  
Chemical Diffusion Coefficient ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
X Ray ◽  
State Method

Lithium vanadyl phosphate (β-LiVOPO4) cathode material for lithium ion batteries was prepared via a novel solid state method. The microstructure and electrochemical properties of the sample were characterized by X-ray diffraction, scanning electron microscopy, galvanostatically discharge/discharge and cyclic voltammetry techniques, respectively. X-ray diffraction patterns showed that β-LiVOPO4 has an orthorhombic structure with space group of Pnma. The discharge capacity of LiVOPO4 sample is 89.9 mAh•g-1 in the first cycle, and in the 50th cycle it is 76.2 mAh•g-1 at the current density of 10 mA•g-1 between 3.0-4.5 V. The chemical diffusion coefficient ( ) value determined from CV is about 10-11 cm2 s-1. Experimental results indicate that further efforts are needed to improve electrochemical performances of LiVOPO4 material synthesized by solid state method; however, it has a higher discharge plateau around 3.9 V.

Preparation and Characteristic Development of Nano Zn2SiO4: Mn Green Phosphors by La2O3 Doping

2012 ◽  
Vol 512-515 ◽  
pp. 1520-1523
Author(s):  
Fann Wei Yang ◽  
Chien Min Cheng ◽  
Kai Huang Chen
Keyword(s):  
Grain Size ◽  
Grain Shape ◽  
Sintering Temperature ◽  
Main Principle ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
X Ray ◽  
State Method ◽  
Sintering Conditions

In this experimental, solid state method is used to synthesize proportioned nano-ZnO and SiO2 powders into Zn2SiO4 phosphor, and to achieve better control on grain size and grain shape than traditional powder. La is used to replace Mn; and to achieve better control on grain size and grain shape than traditional powder. With different sintering conditions, With different sintering conditions, the effect of the luminescent intensity due to sintering temperature and the concentration of activator would be discussed by the X-Ray Diffraction, SEM and TEM were utilized in the characterization of phase purity and microstructure of phosphor particles. Photoluminescence (PL) spectroscopy was utilized to characterize the optical properties. This use of phosphor materials is the application of the main light source, display components. Therefore, our study zinc silicate as the main principle of doping Mn, La of the characteristics of, expects to find the best glow.

Effects of Y3+-Doping on the Electrochemical Properties of LiV3O8 Cathode Material Prepared by a Solid-State Method

2011 ◽  
Vol 391-392 ◽  
pp. 1363-1367
Author(s):  
Yong Mei Liu ◽  
Hui Juan Li ◽  
Jie Ni
Keyword(s):  
Solid State ◽  
Undoped Sample ◽  
Original Structure ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
X Ray ◽  
State Method ◽  
Good Cycling Stability ◽  
Yttrium Doping

A series of yttrium-doped lithium trivanadates LiV3-yYyO8 (y=0, 0.01, 0.03, 0.05, 0.1 and 0.2) were synthesized by a solid-state reaction. X-ray diffraction (XRD) tests show that a proper amount of yttrium doping in LiV3O8 can modify its structure. Charge-discharge tests show that doped samples with a proper amount of yttrium display good cycling stability compared with undoped sample. The cyclic voltammetry (CV) tests indicate that the proper amount of yttrium doping in LiV3O8 can stabilize its original structure. Yttrium doping is a convenient and effective method for improving the electrochemical performances of LiV3O8.

Characterization of Atomized Powders and Extruded Samples of an Al-Si-Cu Alloy

2017 ◽  
Vol 899 ◽  
pp. 442-447
Author(s):  
Carlos Triveño Rios ◽  
C. Bolfarini ◽  
Walter José Botta Filho ◽  
Claudio Shyinti Kiminami
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Yield Strength ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cu Alloy ◽  
Powder Particles ◽  
Scanning Electron

In this work, the microestrutural characterization and mechanical properties of atomized Al-9Si-3Cu alloy powders and extruded samples are presented. The microstructure was evaluated by a combination of X-ray diffraction, optical microscopy and scanning electron microscopy. The mechanical properties of extruded samples were also characterized by tensile test and hardness measurements. The results revealed that the powder particles and the extruded samples are constituted by α-Al, intermetallic and metastable phases. The extruded samples obtained by the use of smaller atomized particles show lower ductility than with larger particles. The same behavior was observed with low extrusion temperature than with high temperatures. It was also observed minor variations in the yield strength and hardness with variation in the size of the powder particles.

Mechanical properties of FeAlSi powders prepared by mechanical alloying from different initial feedstock materials

2019 ◽  
Vol 107 (2) ◽  
pp. 207 ◽  
Author(s):  
Jaroslav Čech ◽  
Petr Haušild ◽  
Miroslav Karlík ◽  
Veronika Kadlecová ◽  
Jiří Čapek ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Alloying ◽  
Young’S Modulus ◽  
Milling Time ◽  
Young's Modulus ◽  
Element Model ◽  
X Ray Diffraction ◽  
X Ray ◽  
Powder Particles ◽  
Complete Homogenization

FeAl20Si20 (wt.%) powders prepared by mechanical alloying from different initial feedstock materials (Fe, Al, Si, FeAl27) were investigated in this study. Scanning electron microscopy, X-ray diffraction and nanoindentation techniques were used to analyze microstructure, phase composition and mechanical properties (hardness and Young’s modulus). Finite element model was developed to account for the decrease in measured values of mechanical properties of powder particles with increasing penetration depth caused by surrounding soft resin used for embedding powder particles. Progressive homogenization of the powders’ microstructure and an increase of hardness and Young’s modulus with milling time were observed and the time for complete homogenization was estimated.

Characterization of some mesogenic alkyl 1-thioglycosides

2002 ◽  
Vol 80 (8) ◽  
pp. 1162-1165 ◽  
Author(s):  
B Henrissat ◽  
G K Hamer ◽  
M G Taylor ◽  
R H Marchessault
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Solid State ◽  
Solid State Nmr ◽  
Liquid Crystalline ◽  
Liquid Crystal Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Liquid Crystalline Phases

A series of dodecyl 1-thio-β-D-glycosides has been synthesized and characterized (DSC, NMR, CP MAS, X-ray diffraction) as possible new marking materials with liquid-crystalline properties. These compounds undergo solid to liquid crystal phase transitions at various temperatures, which depend on the nature of the carbohydrate part of the structure. Their liquid-crystalline phases show extreme shear thinning behaviour.Key words: liquid crystal, powder X-ray diffraction, phase transition, thioglycoside, solid-state NMR, marking material

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