Phase Equilibria in the BaO-SiO2-Al2O3 Ternary System at 1500 °C

2016 ◽  
Vol 697 ◽  
pp. 565-571 ◽  
Author(s):  
Rui Zhang ◽  
Pekka Taskinen
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ternary System ◽  
Phase Equilibria ◽  
Ternary Compound ◽  
Energy Dispersive Analysis ◽  
Liquidus Composition ◽  
Isothermal Sections ◽  
X Ray ◽  
Scanning Electron

Phase equilibria of the BaO-SiO2-Al2O3 ternary system was experimentally investigated using a quenching technique and analyzed by Scanning Electron Microscopy (SEM) equipped with Energy Dispersive Analysis (EDS) and X-ray Powder Diffraction (XRD). A ternary compound was confirmed in the present work. The liquidus composition in equilibrium with the ternary compound at 1500 °C were quantified. The isothermal sections of the BaO-SiO2-Al2O3 ternary system at 1400 °C, 1500 °C, 1600 °C, and 1700 °C were calculated. Based on the data acquired, the isothermal section at 1500 °C was constructed.

Experimental Investigation of the Phase Equilibria of Al-Zn-Ti System in Al-Rich Corner at 400 °C

2011 ◽  
Vol 399-401 ◽  
pp. 2210-2214 ◽  
Author(s):  
Qun Luo ◽  
Feng Jin ◽  
Yang Li ◽  
Qian Li ◽  
Jie Yu Zhang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Experimental Investigation ◽  
Ternary System ◽  
Phase Equilibria ◽  
Ternary Phase ◽  
X Ray ◽  
Xrd Patterns ◽  
New Phase ◽  
Scanning Electron

The phase equilibria in Al-rich corner of the Al-Zn-Ti ternary system at 400 °C were determined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS) and X-ray powder diffraction (XRD). The results showed that this section consisted of three ternary-phase regions, namely, L+(Al)+τ, Ti2Al5+τ+(Al) and Ti2Al5+TiAl3+(Al). The XRD patterns and EDS confirmed that a Ti2Al5-structured phase with containing 4 at.% Zn was stable at 400 °C. Furthermore, the ternary new phase (τ phase) was identified in samples and in equilibrium with (Al), Ti2Al5 and liquid, respectively.

scholarly journals Study on the Phase Equilibria of the Fe-Al-Ni-O System at 750°C

Scanning ◽  
2022 ◽  
Vol 2022 ◽  
pp. 1-12
Author(s):  
Meng Du ◽  
Haifeng Mei ◽  
Ya Liu
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Phase Equilibrium ◽  
Oxide Film ◽  
Phase Equilibria ◽  
Phase Boundary ◽  
Alloy Composition ◽  
X Ray ◽  
Three Phase ◽  
Scanning Electron

Phase equilibria of the Fe-Al-Ni-O system at 750°C were determined by scanning electron microscopy coupled with energy-dispersive X-ray spectrometer and X-ray power diffraction. 54 alloys were prepared with weighted metal and Ni2O3 powder and were annealed at 750°C for 45 days. Two four-phase equilibrium regions and three three-phase equilibrium regions were confirmed, and the boundary between spinel and corundum was obtained. Comparing with the Fe-Al-Ni-O oxidation diagram at 750°C calculated with FSstel and FToxid databases, the phase boundary of the spinel and corundum oxides from experiments was inclined to the Ni-Al side. The determined relationship between primary oxides and alloy composition in this work can be used as a reference for the preparation of the oxide film by selective oxidation.

scholarly journals Novel CaMoO4@GO Nanocomposite: Synthesis, Characterization, and Investigation its Photocatalytic Properties

2020 ◽  
pp. 87-95
Author(s):  
Seyed Mostafa Hosseinpour Mashkani
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Methylene Blue ◽  
Graphene Oxide ◽  
Photocatalytic Properties ◽  
Energy Dispersive Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Calcium Molybdate ◽  
Scanning Electron

The current study aims to synthesize and characterize Calcium Molybdate-Graphene Oxide (CaMoO4@GO) nanocomposite under ultrasonic irradiation. Primarily, degradation of Methylene blue (MB) under Uv-Vis light was investigated to measure the photocatalytic properties of the as-synthesized CaMoO4@GO nanocomposite. In addition, various graphene oxide concentrations were applied to investigate its impact on the optical and photodegradation properties of calcium molybdate. X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectra energy dispersive analysis of X-ray (EDS) were used to characterize CaMoO4@GO nanocomposite. DRS results demonstrated that GO influenced significantly the optical properties of CaMoO4 as much as band gap of CaMoO4@GO nanocomposite shows a redshift in comparison with pure CaMoO4. Consequently, photocatalytic results demonstrated that adding GO causes to increase photodegradation of MB form 65% (CaMoO4) to 89% (CaMoO4@GO).

An Experimental Investigation of the U-Mo-C Ternary Diagram

2012 ◽  
Vol 194 ◽  
pp. 26-30 ◽  
Author(s):  
Matthieu Peniel ◽  
Houda El Bekkachi ◽  
Olivier Tougait ◽  
Mathieu Pasturel ◽  
Henri Noël
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Experimental Investigation ◽  
Ternary Diagram ◽  
X Ray Diffraction ◽  
Isothermal Sections ◽  
X Ray ◽  
Peritectic Decomposition ◽  
Scanning Electron

The isothermal sections of the U-Mo-C ternary system have been established at 1000°C and 1400°C, using powder X-ray diffraction, scanning electron microscopy coupled with energy dispersive X-ray analysis for the quantification of U and Mo and differential thermal analysis. The main differences between the two sections are the appearance of liquid phase at about 1230°C, due to the peritectic decomposition of γ-UMo, and the peritectoid decompositions of MoC and β’’ Mo2C. No other transformation was detected in this temperature range, especially one involving the two only ternary phases found, UMoC2 and U2Mo2C3.

Phase Equilibria Studies of Hf44.5Ti5Cu27Ni13.5Al10 and Hf44.5Nb5Cu27Ni13.5Al10

2005 ◽  
Vol 903 ◽  
Author(s):  
Robert Woodman ◽  
Laszlo Kecskes
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Phase Equilibria ◽  
Equilibrium Phase ◽  
Melting Behavior ◽  
Phase Assemblage ◽  
X Ray ◽  
Glass Forming ◽  
Scanning Electron

AbstractWe report the equilibrium phase assemblage of two bulk-metallic-glass-forming alloys, Hf44.5Ti5Cu27Ni13.5Al10 and Hf44.5Nb5Cu27Ni13.5Al10. Using thermal analysis, scanning electron microscopy, and x-ray microanalysis, we examined the phase equilibria of the major components - Hf, Cu, and Ni. We then examined the effect of additions or substitutions of Nb, Ti, and Al on equilibrium phase assemblage and melting behavior.

scholarly journals Hydrothermal synthesis and characterization of polycrystalline gadolinium aluminum perovskite (GdAlO3, GAP)

2015 ◽  
Vol 33 (2) ◽  
pp. 301-305 ◽  
Author(s):  
Girish H. N. ◽  
Basavalingu B. ◽  
Shao G.-Q. ◽  
Sajan C. P. ◽  
S. K. Verma
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Infrared Spectroscopy ◽  
High Temperature ◽  
Synthesis And Characterization ◽  
Energy Dispersive Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

AbstractGadolinium aluminum perovskite (GdAlO3, GAP) is a promising high temperature ceramic material, known for its wide applications in phosphors. Polycrystalline gadolinium aluminum perovskites were synthesized using a precursor of co-precipitate gel of GdAlO3 by employing hydrothermal supercritical fluid technique under pressure and temperature ranging from 150 to 200 MPa and 600 to 700 °C, respectively. The resulted products of GAP were studied using the characterization techniques, such as powder X-ray diffraction analysis (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM) and energy dispersive analysis of X-ray (EDX). The X-ray diffraction pattern matched well with the reported orthorhombic GAP pattern (JCPDS-46-0395).

Phase equilibria and crystal structure relationships in the ternary Li–B–C system

2018 ◽  
Vol 5 (4) ◽  
pp. 853-863 ◽  
Author(s):  
V. Milashius ◽  
V. Pavlyuk ◽  
G. Dmytriv ◽  
H. Ehrenberg
Keyword(s):  
Crystal Structure ◽  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Differential Scanning Calorimetry ◽  
Phase Equilibria ◽  
Electron Probe ◽  
Scanning Calorimetry ◽  
X Ray ◽  
System P ◽  
Scanning Electron

Phase equilibria in the Li–B–C ternary system have been investigated by X-ray powder diffraction, scanning electron microscopy, electron probe microanalysis and differential scanning calorimetry.

Isothermal Sections of the U-Fe-Sb Ternary System

2012 ◽  
Vol 194 ◽  
pp. 21-25 ◽  
Author(s):  
Margarida S. Henriques ◽  
Thomas Malnoe ◽  
Olivier Tougait ◽  
Rui Vilar ◽  
Antonio Pereira Gonçalves
Keyword(s):  
Crystal Structure ◽  
Electron Microscopy ◽  
Solid Solution ◽  
Scanning Electron Microscopy ◽  
Ternary Phase ◽  
Energy Dispersive Spectrometry ◽  
X Ray Diffraction ◽  
Isothermal Sections ◽  
X Ray ◽  
Scanning Electron

A systematic study on the ternary uranium-iron-antimony was made at 700 and 750°C through powder X-ray diffraction and Scanning Electron Microscopy coupled with Energy Dispersive Spectrometry. The assessed sections confirmed the existence and crystal structure of the binary intermetallic compounds as well as the ternary phase UFeSb2. Moreover it was found that UFeSb2 is part of a solid solution, UFe1-xSb2, stable for 193Fe3-xSb4, crystallizing in the cubic type Y3Au3Sb4 and stable for 22

Identification of calcium oxalate crystals in dried or fixed tobacco leaf

1984 ◽  
Vol 42 ◽  
pp. 288-289
Author(s):  
Vicki L. Baliga ◽  
Mary Ellen Counts
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Calcium Oxalate ◽  
Growth And Development ◽  
Polarized Light ◽  
Calcium Oxalate Crystals ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

Calcium is an important element in the growth and development of plants and one form of calcium is calcium oxalate. Calcium oxalate has been found in leaf seed, stem material plant tissue culture, fungi and lichen using one or more of the following methods—polarized light microscopy (PLM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and x-ray diffraction.Two methods are presented here for qualitatively estimating calcium oxalate in dried or fixed tobacco (Nicotiana) leaf from different stalk positions using PLM. SEM, coupled with energy dispersive x-ray spectrometry (EDS), and powder x-ray diffraction were used to verify that the crystals observed in the dried leaf with PLM were calcium oxalate.

Scanning Electron Microscopy and X-Ray Analyses of Dental Tissues from a Hibernator

1976 ◽  
Vol 34 ◽  
pp. 178-179
Author(s):  
M. L. Zimny ◽  
A. C. Haller
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Body Temperature ◽  
Ground Squirrel ◽  
Alveolar Bone ◽  
X Ray ◽  
Dental Tissues ◽  
Bone Minerals ◽  
Apical Tooth ◽  
Scanning Electron

During hibernation the ground squirrel is immobile, body temperature reduced and metabolism depressed. Hibernation has been shown to affect dental tissues varying degrees, although not much work has been done in this area. In limited studies, it has been shown that hibernation results in (1) mobilization of bone minerals; (2) deficient dentinogenesis and degeneration of alveolar bone; (3) presence of calculus and tears in the cementum; and (4) aggrevation of caries and pulpal and apical tooth abscesses. The purpose of this investigation was to study the effects of hibernation on dental tissues employing scanning electron microscopy (SEM) and related x-ray analyses.

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