Er-Cr-Ge Ternary System | Zendy

M. Konyk | Zendy; L. Romaka | Zendy; Yu. Stadnyk | Zendy; V.V. Romaka | Zendy; R. Serkiz | Zendy; А. Horyn | Zendy

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Er-Cr-Ge Ternary System

Author(s) -

M. Konyk,

L. Romaka,

Yu. Stadnyk,

V.V. Romaka,

R. Serkiz,

А. Horyn

Publication year - 2019

Publication title -

physics and chemistry of solid state

Language(s) - English

Resource type - Journals

eISSN - 2309-8589

pISSN - 1729-4428

DOI - 10.15330/pcss.20.4.376-383

Subject(s) - electron microprobe , isothermal process , ternary operation , ternary numeral system , metallography , homogeneity (statistics) , phase diagram , materials science , analytical chemistry (journal) , crystallography , chemistry , physics , mathematics , metallurgy , phase (matter) , microstructure , thermodynamics , computer science , statistics , organic chemistry , chromatography , programming language

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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