Study on Properties of Al2O3 -CaO-SiO2-CaF2 Slag System

2011 ◽  
Vol 396-398 ◽  
pp. 786-790 ◽  
Author(s):  
Ke Wu Peng ◽  
Peng Zhang ◽  
Jian Guo Xie ◽  
He Li Ma
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition ◽  
Liquidus Temperature ◽  
Molten Slag ◽  
Slag System ◽  
Main Phase ◽  
Caf2 Content

Liquidus temperature, electrical conductivity and phase composition of Al2O3－CaO－SiO2－CaF2 System were studied. The results showed that the liquidus temperature of the slag decreased with increasing CaF2 content, and its electrical conductivity increased with increasing CaF2 content and temperature. When the content of CaF2 is 20%, the liquidus temperature is 1469°C. When the contents of CaF2 is 10%，its main phase compositions are composed of Ca5Al6O14、Al2Ca3(SiO4)3、Al2(SiF6)3 and Ca3Al10O18. Ca2AlF7、Ca2Al3O6F becomes more and more with increasing the content CaF2 because of F1- replacing O2- in molten slag.

Study on Properties of Al2O3 -CaO-SiO2-CaF2-MgO Slag System

2014 ◽  
Vol 513-517 ◽  
pp. 24-27 ◽  
Author(s):  
Jia Meng Guo ◽  
Ke Wu Peng ◽  
Lei Yi ◽  
He Li Ma ◽  
Ren Chen
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition ◽  
Liquidus Temperature ◽  
Slag System ◽  
Main Phase

Liquidus temperature, electrical conductivity and phase composition of Al2O3-CaO-SiO2-CaF2-MgO slag system were studied. The results showed that the liquidus temperature of the slag decreased with increasing MgO content, and its electrical conductivity increased with increasing MgO content and temperature. When the content of MgO is 5 %, the main phase compositions of the slag are composed of MgAl2O4, Ca2SiO2F2, CaAl4O7 and Ca5Al6O14. When the content of MgO is 7 %, the main phase compositions of Al2O3-CaO-SiO2-CaF2-MgO are composed of MgAl2O4, Ca4Si2O7F2, CaAl4O7 and Ca5Al6O14.And the content of MgAl2O4 and Mg2SiO4 increased with increasing MgO.

Study on Properties of Al2O3 -CaO-CaF2 Slag System

2011 ◽  
Vol 117-119 ◽  
pp. 269-272 ◽  
Author(s):  
Ke Wu Peng ◽  
Peng Zhang ◽  
Jian Guo Xie ◽  
He Li Ma
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition ◽  
Liquidus Temperature ◽  
Slag System

Liquidus temperature, electrical conductivity and phase composition of Al2O3 -CaO-CaF2 slag system were studied. The results showed that the liquidus temperature of the slag decreased with increasing CaF2 content, and its electrical conductivity increased with increasing CaF2 content and temperature. The liquidus temperature is 1468°C when the content of CaF2 is 20%. Its phase composition are composed of CaAl2O4、Ca2Al3O6F、Ca2AlF7 andAlF3. When the content of CaF2 is 10%, there are lots of CaAl2O4. The content of CaAl2O4 decreased with increasing CaF2, but the content of Ca2Al3O6F and Ca2AlF7 increased.

Study on Properties of Al2O3 –CaO-Na2CO3 Slag System

2011 ◽  
Vol 391-392 ◽  
pp. 1302-1305
Author(s):  
Ke Wu Peng ◽  
Peng Zhang ◽  
Jian Guo Xie ◽  
He Li Ma
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition ◽  
Liquidus Temperature ◽  
Slag System ◽  
Minimum Value

Liquidus temperature, electrical conductivity and phase composition of Al2O3-CaO-Na2CO3 slag were studied in the paper. The results showed that the minimum value of liquidus temperature was 1429°C when the content of Na2CO3 was 11%. The Al2O3-CaO-Na2CO3 slag of lower liquidus temperature had higher electrical conductivity, and the electrical conductivity of Al2O3-CaO-Na2CO3 slag increased with the increase of temperature. The main phases of Al2O3-CaO-Na2CO3 slag are composed of CaAl2O4, Ca3Al10O18, NaAlO2 and Na2CO3. The addition of Na2CO3 is to be more effective for decreasing liquidus temperature and increasing electrical conductivity in the Al2O3-CaO-Na2CO3 slag system.

Phase Composition, Electrical Conductivity, and Stability of ZrO2–Sc2O3–Cr2O3Solid Electrolytes

2004 ◽  
Vol 40 (10) ◽  
pp. 1073-1078 ◽  
Author(s):  
Yu. N. Karavaev ◽  
A. D. Neuimin ◽  
E. G. Vovkotrub
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition

Microstructure of Laser Cladded Cobalt-Based Alloy Coating on T10 Tool Steel

2011 ◽  
Vol 464 ◽  
pp. 694-697
Author(s):  
Qian Zhao ◽  
Yong Kang Zhang ◽  
Cheng Yun Cui ◽  
Xi Gui Cui ◽  
Jin Zhong Lu
Keyword(s):  
Phase Composition ◽  
Electron Microscope ◽  
Tool Steel ◽  
Aging Treatment ◽  
Alloy Coating ◽  
Main Phase ◽  
X Ray ◽  
Solidification Microstructures ◽  
Scanning Electron ◽  
Original Coating

Co-based alloy coating was fabricated by powder feeding laser cladding on T10 tool steel. The microstructure and phase composition were investigated by scanning electron microscope (SEM) and X-ray diffractometer (XRD). The results showed that the different solidification microstructures on the section, such as planar, cellular and dendrite formed from the interface to the surface. The main phase γ-Co and another phase Cr23C6 existed in the original coating, however, the main phase γ-Co was unchanged, and another phase was replaced by Cr7C3 accompanying with Co3C and Co4B precipitations after aging treatment.

EVOLUTION OF MICROSTRUCTURE AND PHASE COMPOSITION UPON ANNEALING OF LiFePO4 PREPARED BY A LOW TEMPERATURE METHOD

2011 ◽  
Vol 04 (02) ◽  
pp. 117-122 ◽  
Author(s):  
W. ZAJAC ◽  
J. MARZEC ◽  
W. MAZIARZ ◽  
A. RAKOWSKA ◽  
J. MOLENDA
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition ◽  
High Resolution ◽  
Microstructural Characterization ◽  
Temperature Method ◽  
High Resolution Tem ◽  
Iron Valence ◽  
Evolution Of Microstructure ◽  
Type Crystal

The effect of annealing of nanosized LiFePO 4 powder on microstructure, phase composition, iron valence state and electrical conductivity has been studied. Careful microstructural characterization of the as-prepared powder using high resolution TEM revealed presence of {010}-type crystal planes at the surface of crystallites, which seem to be beneficial to electrochemical activity. The second part of the work is focused on explanation of presence and evolution of Fe 3+ detected in the material. Transmission and CEMS modes of Mössbauer spectroscopy together with TEM allowed for ruling out concept of amorphous layers containing Fe 3+ ions covering crystalline LiFePO 4 grains.

scholarly journals STUDY OF THE PHASE COMPOSITION AND ELECTRICAL CONDUCTIVITY OF THE Cu–Cr–Si–Ce–La SYSTEM ALLOYS

2018 ◽  
Vol 18 (2) ◽  
pp. 54-63
Author(s):  
O.V. Samoylova ◽  
◽  
E.A. Trofimov ◽  
N.A. Shaburova ◽  
V.I. Geraskin
Keyword(s):  
Electrical Conductivity ◽  
Phase Composition
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