A TEM study on ZrO2-rich phases in the quasibinary system ZrO2-Zr3N4: Comparison between fast and slowly cooled samples

2005 ◽  
Vol 40 (3) ◽  
pp. 193-198 ◽  
Author(s):  
A. T. Tham ◽  
C. Rödel ◽  
M. Lerch ◽  
D. Wang ◽  
D. S. Su ◽  
...  
Keyword(s):  
Quasibinary System

Magnetic properties of solid solutions in the ZnP2CdP2 quasibinary system

1987 ◽  
Vol 22 (8) ◽  
pp. K129-K131
Author(s):  
Ts. Z. Vitkina ◽  
E. M. Smolyarenko ◽  
V. M. Trukhan
Keyword(s):  
Magnetic Properties ◽  
Solid Solutions ◽  
Quasibinary System

The phase diagram of the quasibinary system Ga2Te3/Ga2Se3

2004 ◽  
Vol 381 (1-2) ◽  
pp. 124-129 ◽  
Author(s):  
Martina Kerkhoff ◽  
Volkmar Leute
Keyword(s):  
Phase Diagram ◽  
Quasibinary System

Zum System Wasser—Fluorwasserstoff: Phasenverhalten und Kristallstruktur von 2 D2O• 3 DF, einer deuterierten Verbindung ohne protoniertes Analogon / Concerning the System Water—Hydrogen Fluoride: Phase Behaviour and Crystal Structure of 2 D2O· 3 DF, a Deuterated Compound Lacking the Protonated Analogue

1989 ◽  
Vol 44 (11) ◽  
pp. 1359-1364 ◽  
Author(s):  
Wolfgang Poll ◽  
Michaela Lohmeyer ◽  
Dietrich Mootz
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Single Crystal ◽  
Phase Behaviour ◽  
X Ray ◽  
Quasibinary System ◽  
Molecular Adduct ◽  
Oxonium Salt ◽  
System Water ◽  
Additional Phase

The melting diagram of the quasibinary system D2O— DF was determined by low-temperature DTA and X-ray powder diffraction. It was found to be largely similar to that of the corresponding non-deuterated system H2O—HF with the striking exception of an additional phase with a composition of its own, 2D2O· 3 DF, and stable between ca. —78 and —71°C. Its structure, determined from single-crystal MoKā diffractometer data at —150°C, is rhombohedral (space group R3c, Z = 6, a = 769.9, c = 1242.1 pm) and strongly related to that of NH, · 4 HF or NH4[F(HF)3] with also seven H (as to be compared to D) and five non-H (non-D) atoms per formula unit. But with the O atom involved in four hydrogen bonds, one O · · · O and three O · · · F. at distances of 273.9 and 259.5 pm, respectively, the compound appears to be a molecular adduct rather than an oxonium salt. The D atoms in the hydrogen bonds are distributed over two positions each. — The remaining intermediary phases of the deuterated system, i. e. D2O · DF, D2O· 2 DF and D2O · 4 DF, are isotypic to their protonated counterparts of known crystal structure. For D2O · DF and D2O-2 DF these results from powder patterns were confirmed by two more single-crystal studies. The ionic structures — D3OF and D3O[F(DF)], respectively — show no distinctive effect of the H/D substitution even on details of the interatomic geometries.

Mössbauer Studies on the Quasibinary System FeTe1.45–TiTe1.45

2004 ◽  
Vol 156/157 (1-4) ◽  
pp. 201-204
Author(s):  
O. Yu. Pankratova ◽  
A. V. Zabolotnaya ◽  
K. A. Histiaev ◽  
V. V. Panchuck ◽  
V. G. Semenov ◽  
...  
Keyword(s):  
Mössbauer Studies ◽  
Quasibinary System

The Phase Diagram of the Quasibinary System Ga2Te3/Ga2Se3.

ChemInform ◽  
2004 ◽  
Vol 35 (52) ◽  
Author(s):  
Martina Kerkhoff ◽  
Volkmar Leute
Keyword(s):  
Phase Diagram ◽  
Quasibinary System

Thermodynamic assessment of the BaO - TiO2 quasibinary system

Calphad ◽  
2000 ◽  
Vol 24 (3) ◽  
pp. 319-338 ◽  
Author(s):  
Xiaogang Lu ◽  
Zhanpeng Jin
Keyword(s):  
Thermodynamic Assessment ◽  
Quasibinary System

The quasibinary system In2Te3-SnTe

1968 ◽  
Vol 16 (1) ◽  
pp. 65-70 ◽  
Author(s):  
L.E. Merino ◽  
P.J. Howard ◽  
E.A. Peretti
Keyword(s):  
Quasibinary System

scholarly journals Effect of External Impacts on the Structure and Martensitic Transformation of Rapidly Quenched TiNiCu Alloys

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1528
Author(s):  
Alexander Shelyakov ◽  
Nikolay Sitnikov ◽  
Irina Zaletova ◽  
Natalia Tabachkova ◽  
Nikolay Andreev
Keyword(s):  
Martensitic Transformation ◽  
Amorphous State ◽  
Rapid Quenching ◽  
Subgrain Structure ◽  
Mechanical Impact ◽  
Cu Content ◽  
Thermally Activated ◽  
Structure Sensitive ◽  
Average Grain Size ◽  
Quasibinary System

TiNi-TiCu quasibinary system alloys with a high Cu content produced by rapid quenching from liquid state in the form of thin amorphous ribbons exhibit pronounced shape memory effect after crystallization and are promising materials for miniaturized and fast operating devices. There is currently no complete clarity of the mechanisms of structure formation during crystallization from the amorphous state that determine the structure-sensitive properties of these alloys. This work deals with the effect of the initial amorphous state structure and crystallization method of the alloys on their structure and phase transformations. To this end the alloy containing 30 at.% Cu was subjected to thermal and mechanical impact in the amorphous state and crystallized using isothermal or electropulse treatment. We show that after all types of treatment in the amorphous state the structure of the alloy remains almost completely amorphous but the characteristic temperatures and enthalpy of crystallization become slightly lower. Isothermal crystallization of alloy specimens produces a submicrocrystalline structure with an average grain size in the 0.4–1.0 μm range whereas electropulse crystallization generates a bimorphic structure consisting of large 4–6 μm grains and 2–3 μm high columnar crystals in the vicinity of the surface. The grains have nanosized plate-like and subgrain structures. The largest grains are observed in thermally activated samples, meanwhile, mechanical impact in the amorphous state leads to the formation of equiaxed finer grains with a less defective subgrain structure and to the shift of the temperature range of the martensitic transformation toward lower temperatures.

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