Preliminary Investigation of Processing and Phase Diagram Construction in the Y‐Sr‐Cu‐O System

1989 ◽  
Vol 169 ◽  
Author(s):  
T. D. Rolin ◽  
F. S. Cheng ◽  
J. R. Ashburn ◽  
H. Y. Cheng ◽  
E. E. Anderson
Keyword(s):  
Phase Diagram ◽  
Solid State ◽  
Ternary Phase ◽  
Single Phase ◽  
Ternary Phase Diagram ◽  
Preliminary Investigation ◽  
Processing Technique ◽  
Advantages And Disadvantages ◽  
Using Data ◽  
State Processing

AbstractWe have investigated the Y‐Sr‐Cu‐O system which has been reported to form a K2NiF4‐type superconducting phase (TC∼40K) and a “123”‐type phase (Tc‐80K). Difficulties in preparing single phase materials by standard solid state reaction of carbonates and oxides have compelled us to explore other methods. A two‐stage solid state processing technique in addition to a coprecipitation method will be discussed along with the relative advantages and disadvantages of each. Using data obtained from XRD and EDS, we have mapped some of the YO1.5‐SrO‐CuO ternary phase diagram in anticipation of continued efforts at single crystal growth.

scholarly journals The use of ternary phase diagram sections in solid-state reactions involving TiC formation

1985 ◽  
Vol 16 ◽  
pp. 179-184 ◽  
Author(s):  
P RAMAEKERS ◽  
F VANLOO ◽  
G BASTIN ◽  
R METSELAAR
Keyword(s):  
Phase Diagram ◽  
Solid State ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Solid State Reactions

Composition and Structure of Si3n4 Implanted with Ti AT 900°C

1988 ◽  
Vol 100 ◽  
Author(s):  
I. L. Singer ◽  
R. G. Vardiman ◽  
C. R. Gossett
Keyword(s):  
Phase Diagram ◽  
Solid State ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Nitride Layer ◽  
Solid State Reactions ◽  
Depth Profiles ◽  
High Fluences ◽  
Composition And Structure

ABSTRACTTi+ ions were implanted to high fluences (up to 5 × 1017 /cm2 ) into Si3N4 substrates heated to around 900°C. Composition vs depth profiles were obtained by RBS (in conjunction with RUMP analysis) and microstructures were examined by TEM. At a fluence of 4 × 1017 /cm2, the Si concentration was considerably reduced at the Ti peak depth but enriched near the surface. By 5 × 1017 /cm2, Si was nearly depleted from the implanted layer, leaving a Ti-rich nitride layer merging continuously into Si3N4. TEN detected TiN precipitates up to several pm in diameter, and coherent with Si3N4 crystallites. A Si-Ti-N ternary phase diagram is used to interpret the observed solid state reactions.

Phase Equilibria and Transport Properties in the Systems AgNO3/RCN/H2O. R = CH3, C2H5, C3H7, C4H,, C6H5, and C6H5CH2

1988 ◽  
Vol 43 (11) ◽  
pp. 977-982
Author(s):  
Surjya P. Das ◽  
Burghard Wittekopf ◽  
Konrad G. Weil
Keyword(s):  
Phase Diagram ◽  
Silver Nitrate ◽  
Room Temperature ◽  
Ternary Phase ◽  
Single Phase ◽  
Ternary Phase Diagram ◽  
Nitrate Content ◽  
Pure Liquid ◽  
Liquid Phases ◽  
Electrical Conductivities

Abstract Silver nitrate can form homogeneous liquid phases with some organic nitriles and water, even when there is no miscibility between the pure liquid components. We determined the shapes of the single phase regions in the ternary phase diagram for the following systems: silver nitrate /RCN /H2O with R =CH3, C3H7, C6H5, and C6H5CH2 at room temperature and for R =C6H5 also at 60 °C and O °C. Furthermore we studied kinematic viscosities, electrical conductivities, and densities of mixtures containing silver nitrate, RCN, and water with the mole ratios X /4 /1 (0.2≦ X ≦S 3.4). In these cases also R = C2H5 and C4H9 were studied. The organic nitriles show different dependences of viscosity and conductivity on the silver nitrate content from the aliphatic ones.

Using phase boundary mapping to resolve discrepancies in the Mg2Si–Mg2Sn miscibility gap

2021 ◽  
Author(s):  
Rachel Orenstein ◽  
James P. Male ◽  
Michael Toriyama ◽  
Shashwat Anand ◽  
G. Jeffrey Snyder
Keyword(s):  
Phase Diagram ◽  
Phase Boundary ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Miscibility Gap ◽  
Boundary Mapping

A new understanding of the MgSi–MgSn miscibility gap is reached through phase boundary mapping the Mg–Si–Sn ternary phase diagram.

Calculation of phase diagrams and thermodynamic properties of 14 additive and reciprocal ternary systems containing Li2CO3, Na2CO3, K2CO3, Li2SO4, Na2SO4, K2SO4, LiOH, NaOH, and KOH

1984 ◽  
Vol 62 (3) ◽  
pp. 457-474 ◽  
Author(s):  
A. D. Pelton ◽  
C. W. Bale ◽  
P. L. Lin
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Molten Salt ◽  
Phase Diagrams ◽  
Binary Systems ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Ternary Systems ◽  
Maximum Error ◽  
Critical Assessment

Phase diagrams and thermodynamic properties of five additive molten salt ternary systems and nine reciprocal molten salt ternary systems containing the ions Li+, Na+, [Formula: see text], OH− are calculated from the thermodynamic properties of their binary subsystems which were obtained previously by a critical assessment of the thermodynamic data and the phase diagrams in these binary systems. Thermodynamic properties of ternary liquid phases are estimated from the binary properties by means of the Conformal Ionic Solution Theory. The ternary phase diagrams are then calculated from these thermodynamic properties by means of computer programs designed for the purpose. It is found that a ternary phase diagram can generally be calculated in this way with a maximum error about twice that of the maximum error in the binary phase diagrams upon which the calculations are based. If, in addition, some reliable ternary phase diagram measurements are available, these can be used to obtain small ternary correction terms. In this way, ternary phase diagram measurements can be smoothed and the isotherms drawn in a thermodynamically correct way. The thermodynamic approach permits experimental data to be critically assessed in the light of thermodynamic principles and accepted solution models. A critical assessment of error limits on all the calculated ternary diagrams is made, and suggestions as to which composition regions merit further experimental study are given.

scholarly journals Part II. Model for the Protective Coating Formation During Hot Dip Galvanizing/ Część II. Model Formowania Powłoki Ochronnej Podczas Cynkowania Ogniowego

2014 ◽  
Vol 59 (4) ◽  
pp. 1393-1404 ◽  
Author(s):  
W. Wołczynski ◽  
Z. Pogoda ◽  
G. Garzeł ◽  
B. Kucharska ◽  
A. Sypien ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Mass Balance ◽  
Protective Coating ◽  
Mathematical Description ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Solute Redistribution ◽  
Zinc Bath ◽  
Flux System ◽  
Coating Formation

Abstract A mathematical description for the (Zn) - coating formation with the presence of flux in the zinc bath is presented. This description includes the progressive vanishing of the products of the flux disintegration. A function which expresses the flux vanishing is formulated. The solidification of some phase sub-layers in the (Zn) - coating is considered with the use of a hypothetical pseudo-ternary phase diagram Fe-Zn-flux. Some relationships are formulated to define the varying Zn - solute redistribution as observed across the sub-layers. The relationships are based on the mass balance analyzed for the coating / bath / flux system. An amount of the growing phase in a given sub-layers is also defined mathematically.

Formation of Salicylic Acid/4,4′-Dipyridyl Cocrystals Based on the Ternary Phase Diagram

2015 ◽  
Vol 38 (6) ◽  
pp. 1073-1080 ◽  
Author(s):  
Kyeong-Sill Lee ◽  
Kwang-Joo Kim ◽  
Joachim Ulrich
Keyword(s):  
Phase Diagram ◽  
Salicylic Acid ◽  
Ternary Phase ◽  
Ternary Phase Diagram
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