Characterization of Phase Equilibria and Thermodynamics with Integrated Experimental and Modelling Approach for Complex Lead Primary and Recycling Processing

2020 ◽  
pp. 337-349
Author(s):  
E. Jak ◽  
M. Shevchenko ◽  
D. Shishin ◽  
T. Hidayat ◽  
P. C. Hayes
Keyword(s):  
Phase Equilibria ◽  
Modelling Approach

X-Ray Characterization Of Phase Equilibria Of the Raveau and 2212 Phases in the Bi-Sr-Ca-Cu-O System

1997 ◽  
pp. 731-738
Author(s):  
Winnie Wong-Ng ◽  
Lawrence P. Cook ◽  
F. Jiang
Keyword(s):  
Phase Equilibria ◽  
X Ray

Synthesis and characterization of mixed fluorides with PbF2 and ScF3

2005 ◽  
Vol 20 (3) ◽  
pp. 254-258 ◽  
Author(s):  
S. N. Achary ◽  
A. K. Tyagi
Keyword(s):  
Solid Solution ◽  
Phase Equilibria ◽  
Room Temperature ◽  
Unit Cell Volume ◽  
Solubility Limit ◽  
Synthesis And Characterization ◽  
Temperature Phase ◽  
Fluorite Type ◽  
Low Temperature Phase

A series of mixed fluoride compositions with PbF2 and ScF3 were prepared by heating the intimate mixtures of component fluorides at 600 °C for 10 h followed by slowly cooling to room temperature. The products obtained were analyzed by powder XRD to reveal the phases present in them and hence the low-temperature phase equilibria in the PbF2-ScF3 system. The phase equilibria show the fluorite-type solid solution up to the composition of about 15 mol% of ScF3 in the PbF2 lattice. The unit cell volume decreases with increasing ScF3 contents in the fluorite-type solid solutions. Beyond the solubility limit, the biphasic mixture of the cubic fluorite-type solid solution and leftover ScF3 is found to exist.

A volume integral approach for the modelling and design of HTS coils

2019 ◽  
Vol 38 (4) ◽  
pp. 1133-1140 ◽  
Author(s):  
Yazid Statra ◽  
Hocine Menana ◽  
Lamia Belguerras ◽  
Bruno Douine
Keyword(s):  
Power Law ◽  
Strong Dependence ◽  
Superconducting Devices ◽  
Electromagnetic Properties ◽  
Integral Approach ◽  
Volume Integral ◽  
Content Type ◽  
High Level ◽  
Modelling Approach

Purpose The purpose of this paper is to develop a rapid and realistic modelling approach for the design and characterization of high temperature superconducting (HTS) coils and windings carrying DC currents. Indeed, the strong dependence of the electromagnetic properties of such materials on the magnetic field makes the design and characterization of HTS systems a delicate operation where local quantities have to be evaluated. Design/methodology/approach A volume integral modelling approach has been developed taking into account the electric nonlinearity of the HTS material which is represented by power law. The variations of the characteristic quantities of the HTS (critical current density and power law exponent) with the magnetic flux density are also taken into account by using Kim’s law. The volume integral modelling allows to model only the active parts of the system and thus to overcome the difficulties linked to the multiscale dimensions. Findings The model has been tested in a case study in which simulation results were compared to measurements and to finite element analysis. A good agreement was found which validates the model as a rapid and efficient tool for HTS coils and windings design and modelling. Practical implications HTS coils are important elements of emerging superconducting devices which require a high level of reliability, such as generators or motors. The proposed approach is interesting to speed up the design and optimization procedures of such systems. Originality/value Advanced structures of the basic elements have been used in the volume integral modelling, which results in a considerable gain in computation time and in memory-space saving while keeping a high level of precision and realism of the modelling, which has been verified experimentally.

Multiphase Characterization of Phase Equilibria in the Tb-Rich Corner of the Co-Cu-Tb System

2019 ◽  
Vol 40 (3) ◽  
pp. 403-412 ◽  
Author(s):  
Pavel A. Prokofev ◽  
Natalia B. Kolchugina ◽  
Gennady S. Burkhanov ◽  
Alexander A. Lukin ◽  
Yuri S. Koshkid’ko ◽  
...  
Keyword(s):  
Phase Equilibria

Phase equilibria in the CeCo5-CeCu5 system and structural characterization of the Ce(Co1−xCux)5 phases

1985 ◽  
Vol 110 (1-2) ◽  
pp. 149-158 ◽  
Author(s):  
D. Girodin ◽  
C.H. Allibert ◽  
F. Givord ◽  
R. Lemaire
Keyword(s):  
Phase Equilibria ◽  
Structural Characterization

scholarly journals PHASE EQUILIBRIA IN THE Cr2O3-P2O5-H2O SYSTEM: SYNTHESIS AND CHARACTERIZATION OF SOME CONDENSED CHROMIUM PHOSPHATES

2001 ◽  
Vol 12 (0) ◽  
pp. 91-97 ◽  
Author(s):  
ANATOLY F. SELEVICH ◽  
LUDMILA S. IVASHKEVICH ◽  
ALEXANDER S. LYAKHOV ◽  
ANATOLY I. LESNIKOVICH
Keyword(s):  
Phase Equilibria ◽  
Synthesis And Characterization ◽  
System Synthesis
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