Synthesis And Characterization Of Nine Metal Nitrides

1995 ◽  
Vol 410 ◽  
Author(s):  
Travis Wade ◽  
Richard M. Crooks
Keyword(s):  
Phase Composition ◽  
Electrochemical Method ◽  
Ceramic Materials ◽  
Synthesis And Characterization ◽  
Metal Nitrides ◽  
Ceramic Powders ◽  
Metal Nitride ◽  
Nitride Ceramics ◽  
Precursor Powders

ABSTRACTWe demonstrate a simple electrochemical method suitable for preparing precursors for nine different metal-nitride ceramics. These precursor powders were calcined in flowing NH3 or Ar to yield metal-nitride ceramic powders. This electrochemical synthetic technique was applied to Al, Ga, Mo, Nb, Ni, Ti, V, W, and Zr and resulted in a nitride of each of these metals. The calcination conditions determined the resulting phase, composition, and morphology of the product. The ceramic materials were characterized primarily by powder XRD.

scholarly journals Synthesis and Thermal Properties of Cerium-Dysprosium Oxide

2016 ◽  
Vol 61 (2) ◽  
pp. 965-969 ◽  
Author(s):  
M. Mikuśkiewicz ◽  
M. Stopyra ◽  
G. Moskal
Keyword(s):  
Thermal Properties ◽  
Phase Composition ◽  
Thermal Diffusivity ◽  
Solid State ◽  
Cerium Oxide ◽  
Solid State Reaction ◽  
Synthesis And Characterization ◽  
Equimolar Ratio ◽  
Dysprosium Oxide

Abstract The paper presents results of investigation on synthesis and characterization of cerium-dysprosium oxide. The input powders - dysprosium oxide Dy2O3 and cerium oxide CeO2 - were mixed so as to obtain equimolar ratio of cations, milled in alcohol and synthesized via solid state reaction process at 1350°C under 15MPa in vacuum for 2h. The microstructure, phase composition and thermal properties were analyzed. The obtained material was multiphase. Non-stoichiometric compounds were identified. Thermal diffusivity of investigated material decreased in the temperature range of 25-1000°C from 0,71 to 0,45 mm2/s.

Synthesis and Characterization of Y2O3 Nanoflowers

2012 ◽  
Vol 465 ◽  
pp. 76-79 ◽  
Author(s):  
Shuang Zhan ◽  
Xia Li
Keyword(s):  
Fourier Transform ◽  
Phase Composition ◽  
Electron Microscope ◽  
Synthesis And Characterization ◽  
The Novel ◽  
X Ray Diffraction ◽  
Facile Hydrothermal Method ◽  
X Ray ◽  
Scanning Electron

The novel Y2O3 nanoflowers were synthesized through a facile hydrothermal method without using any catalyst or template. The phase composition and the microstructure of as-prepared products were characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) as well as Fourier transform infrared spectrum. The formation mechanism for the Y2O3 flowers has been proposed.

Synthesis and characterization of polyvinylsilazane as a precursor for Si3N4 based ceramic materials

2011 ◽  
Vol 46 (20) ◽  
pp. 6538-6544 ◽  
Author(s):  
Justin W. Reutenauer ◽  
Timothy P. Coons ◽  
Christopher L. Hill ◽  
Kevin A. Arpin ◽  
Michael A. Kmetz ◽  
...  
Keyword(s):  
Ceramic Materials ◽  
Synthesis And Characterization

scholarly journals Synthesis and characterization of yttrium aluminium garnet (YAG) powders

2007 ◽  
Vol 1 (1-2) ◽  
pp. 69-74 ◽  
Author(s):  
Magdalena Zarzecka-Napierala ◽  
Krzystof Haberko
Keyword(s):  
Aqueous Solution ◽  
Phase Composition ◽  
Citric Acid ◽  
Ethylene Glycol ◽  
Synthesis And Characterization ◽  
Yttrium Aluminium Garnet ◽  
Yttrium Aluminium ◽  
Ft Ir ◽  
Complexing Properties

In this paper synthesis and characterization of YAG powders, prepared by a process based on complexing properties of citric acid, was reported. Influence of citric acid estrification induced by 2-propanol or ethylene glycol on the system homogeneity was investigated. These reagents were introduced to aqueous solution of yttrium and aluminium nitrates. A variety of powders from Al2O3-Y2O3 system with different phase composition were obtained by altering the citrate to nitrate ratio. Evolution of the powders phase composition vs. temperature was investigated using DTA/TG, XRD, and FT-IR methods. The most interesting results were observed in case of the citric acid - propanol - relative nitrates system. The mole ratio of these reagents equal to 1: 2.5: 2.5 (nitrates (Al,Y): citric acid: 2-propanol) allowed to synthesize pure YAG phase powders at temperature as low as 950?C.

Synthesis and Characterization of Iron-Rich Glass Ceramic Materials: A Model for Steel Industry Waste Reuse

2016 ◽  
Vol 32 (11) ◽  
pp. 1105-1110 ◽  
Author(s):  
Riccardo Carlini ◽  
Ilaria Alfieri ◽  
Gilda Zanicchi ◽  
Francesco Soggia ◽  
Enos Gombia ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Steel Industry ◽  
Ceramic Materials ◽  
Synthesis And Characterization ◽  
Industry Waste ◽  
Waste Reuse ◽  
Glass Ceramic Materials
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