Structural, electronic, elastic and magnetic properties of heavier $$\hbox {REIr}_{3}$$ (RE $$=$$ Gd, Tb and Ho) intermetallic compounds

Shukla, Pushplata; Singh, Sadhna

doi:10.1007/s12043-019-1909-x

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2023

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“…Holmium is an element with interesting magnetic properties [14]. Thanks to this, the magnetic properties of Ho-Ir compounds [15,16] and Ho-oxide [17,18] are also intensively studied. As for Ir-oxide, it has found application in electrochemistry [19].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Phase Equilibria of the Ho-Ir-O Ternary System at 1073 K

Homolová,

Čiripová,

Zobač

et al. 2023

Materials

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An experimental study of the phase equilibria of the Ho-rich part of the Ho-Ir-O ternary system at 1073 K by means of x-ray diffraction, differential scanning calorimetry, and scanning electron microscopy has been carried out. Ho-hcp and four binary compounds, namely Ho3Ir, Ho5Ir2, Ho5Ir3, and Ho2O3, were identified in the Ho-Ir-O model alloys after long-term annealing (350–1220 h). No solubility of iridium in Ho2O3 oxide and Ho-hcp was observed. No ternary phase was found. Based on the experimental results, an isothermal section of the Ho-rich part of the Ho-Ir-O system at 1073 K was constructed. In addition, the microstructure of as-cast alloys was studied. An irregular eutectic consisting of faceted Ho-phase in Ho3Ir phase was observed in the alloys with Ho-hcp + Ho3Ir + Ho2O3 phase composition, and the temperature of the eutectic reaction Ho-hcp + Ho3Ir ↔ liquid was determined.

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