Ternary compounds and isothermal section in Lu–Fe–Ga ternary system at 773 K

The isothermal section of the phase diagram of the Er–Cr–Ge ternary system was constructed at 1070 K over the whole concentration range using X-ray diffractometry, metallography and electron microprobe (EPM) analysis. The interaction between the elements in the Er−Cr−Ge system results in the formation of two ternary compounds: ErCr6Ge6 (MgFe6Ge6-type, space group P6/mmm, Pearson symbol hP13; a = 5.15149(3), c = 8.26250(7) Ǻ; RBragg = 0.0493, RF = 0.0574) and ErCr1-хGe2 (CeNiSi2-type, space group Cmcm, Pearson symbol oS16, a = 4.10271(5), b = 15.66525(17), c = 3.99017(4) Ǻ; RBragg = 0.0473, RF = 0.0433) at investigated temperature. For the ErCr1-xGe2 compound, the homogeneity region was determined (ErCr0.28-0.38Ge2; a = 4.10271(5)-4.1418(9), b = 15.6652(1)-15.7581(4), c = 3.99017(4)-3.9291(1) Ǻ).

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Isothermal section of the Ni-Mn-Sb ternary system at 773K

Journal of Mining and Metallurgy Section B Metallurgy ◽

10.2298/jmmb181104019a ◽

2019 ◽

Vol 55 (2) ◽

pp. 147-156 ◽

Cited By ~ 1

Author(s):

W.-Q. Ao ◽

H.-Z. Yu ◽

F.-L. Liu ◽

F.-S. Liu ◽

J.-Q. Li ◽

...

Keyword(s):

Isothermal Section ◽

Ternary System ◽

Binary Systems ◽

Type Structure ◽

X Ray Diffraction ◽

Energy Dispersion Spectroscopy ◽

Heusler Compound ◽

Space Group ◽

Ternary Compounds ◽

Binary Compounds

The isothermal section of the Ni-Mn-Sb ternary system at 773 K was measured by means of 117 alloys which were analyzed by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), and electron probe microanalysis (EPMA) techniques. The existence of 7 binary compounds, namely NiMn, Mn2Sb, MnSb, NiSb2, NiSb, Ni5Sb2, Ni3Sb and 2 ternary compounds, namely Ni2MnSb and NiMnSb were confirmed for this isothermal section. The four binary compounds Ni3Sb (Cu3Ti structure, Pmmn space group), Ni5Sb2 (Ni5Sb2-type structure, C2 space group), NiSb2 (FeS2-type structure, Pnnm space group) and Mn2Sb (Cu2Sb-type structure, P4/nmm space group) in the binary systems Ni-Sb and Mn-Sb were stoichiometric compounds, the homogeneity ranges of which were negligible. However the five single phases in the Ni-Mn system and the two binary compounds MnSb and NiSb showed more or less homogeneity ranges formed by substitution of Mn and Sb for Ni atom. The Heusler compound ? (Ni2MnSb) has L21-type ordered structure with space group Fm-3m, a = 0.6017 nm. And the crystal structure for the Half-Heusler compound ? (NiMnSb) is C1b-type (F-43m) with a = 0.5961 nm. The approximate homogeneity ranges of the two ternary compounds ? and ? at 773 K were investigated.

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Phase equilibria in the Gd–Cr–Ge system at 1070 K

Фізика і хімія твердого тіла ◽

10.15330/pcss.22.2.248-254 ◽

2021 ◽

Vol 22 (2) ◽

pp. 248-254

Author(s):

M. Konyk ◽

L. Romaka ◽

Yu. Stadnyk ◽

V.V. Romaka ◽

V. Pashkevych

Keyword(s):

Phase Diagram ◽

Isothermal Section ◽

Ternary System ◽

Electron Microprobe ◽

Structure Type ◽

Space Group ◽

X Ray ◽

Type Space ◽

Ternary Compounds ◽

Pearson Symbol

The isothermal section of the phase diagram of the Gd–Cr–Ge ternary system was constructed at 1070 K over the whole concentration range using X-ray diffractometry, metallography and electron microprobe (EPM) analysis. Three ternary compounds are realized in the Gd–Cr–Ge system at the temperature of annealing: Gd117Cr52Ge112 (Tb117Fe52Ge112 structure type, space group Fm-3m, Pearson symbol cF1124, a = 2.8971(6) nm), GdCr6Ge6 (SmMn6Sn6 structure type, space group P6/mmm, Pearson symbol hP16, a = 0.51797(2), c = 0.82901(4) nm) and GdCr1-хGe2 (CeNiSi2 structure type, space group Cmcm, Pearson symbol oS16, a = 0.41569(1)-0.41593(8), b = 1.60895(6)-1.60738(3), c = 0.40318(1)-0.40305(8) nm). For the GdCr1-xGe2 compound the homogeneity range was determined (x=0.73 – 0,69).

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Isothermal section of the Ho–Cu–Sn ternary system at 670 K

Фізика і хімія твердого тіла ◽

10.15330/pcss.19.2.139-146 ◽

2019 ◽

Vol 19 (2) ◽

pp. 139-146

Author(s):

L. Romaka ◽

I. Romaniv ◽

V. Romaka ◽

M. Konyk ◽

A. Horyn ◽

...

Keyword(s):

Solid Solution ◽

Isothermal Section ◽

Ternary System ◽

Binary Compound ◽

X Ray Diffraction ◽

Interstitial Solid Solution ◽

Space Group ◽

X Ray ◽

Type Space ◽

Ternary Compounds

The interaction of the components in the Ho-Cu-Sn ternary system was investigated at 670 K over the whole concentration range using X-ray diffraction and EPM analyses. Four ternary compounds were formed in the Ho–Cu–Sn system at 670 K: HoCuSn (LiGaGe type, space group P63mc), Ho3Cu4Sn4 (Gd3Cu4Ge4-type, space group Immm), HoCu5Sn (CeCu5Au-type, space group Pnma), and Ho1.9Cu9.2Sn2.8 (Dy1.9Cu9.2Sn2.8-type, space group P63/mmc). The formation of the interstitial solid solution based on HoSn2 (ZrSi2-type) binary compound up to 5 at. % Cu was found.

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The ternary system Tm–Ni–In at 870 K

Zeitschrift für Naturforschung B ◽

10.1515/znb-2015-0075 ◽

2015 ◽

Vol 70 (9) ◽

pp. 665-670 ◽

Cited By ~ 2

Author(s):

Yuriy B. Tyvanchuk ◽

Maryana Lukachuk ◽

Rainer Pöttgen ◽

Andrzej Szytuła ◽

Yaroslav M. Kalychak

Keyword(s):

Solid Solution ◽

Magnetic Properties ◽

Isothermal Section ◽

Ternary System ◽

Solid Solutions ◽

Interstitial Solid Solution ◽

Ternary Compounds

AbstractThe isothermal section of the Tm–Ni–In system at T = 870 K was constructed. Nine ternary compounds: Tm10Ni9In20, TmNi1–0.60In1–1.40, Tm2Ni2In, Tm2Ni1.78In, Tm5Ni2In4, Tm11Ni4In9, Tm4.83Ni2In1.17, Tm6Ni2In and Tm14Ni3In3 exist in the system at the temperature of investigation. Solid solutions with In/Ni and Tm/In mixing were noticed for numerous compounds. A broad substitution of Ni for In was observed for TmNi1–0.60In1–1.40, and of Tm for In for the TmNi2–TmNi4In section. An interstitial solid solution TmxNiIn, based on binary equiatomic NiIn, extends up to 8 at.% Tm (x = 0.17). The magnetic properties of TmNiIn, Tm2Ni2In and Tm5Ni2In4 are also reviewed.

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