Tunable Redox Temperature of a Co3–xMnxO4 (0 ≤ x ≤ 3) Continuous Solid Solution for Thermochemical Energy Storage

The (Bi1/2Na1/2)TiO3 (BNT) based ceramics have been the hot topic for a few years because of their multiple functions, from the piezoelectric properties and more recently to electrostatic energy storage...

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Phase relationships in the Fe-rich region of the Ce–Nd–B–Fe quaternary system at 773 K

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.1515/ijmr-2021-8260 ◽

2021 ◽

Vol 112 (9) ◽

pp. 726-734

Author(s):

Ketong Luo ◽

Jianlie Liang ◽

Jinming Zhu ◽

Xuehong Cui

Keyword(s):

Electron Microscopy ◽

Solid Solution ◽

Quaternary System ◽

Continuous Solid Solution ◽

Rich Region ◽

Quaternary Compound ◽

X Ray ◽

Three Phase ◽

Scanning Electron ◽

Phase Relationships

Abstract The Fe-rich corner of the Ce–Nd–B–Fe quaternary system at 773 K has been experimentally investigated by means of X-ray powder diffraction and scanning electron microscopy equipped with energy dispersive X-ray spectroscopy techniques. No quaternary compound was observed in this system. Ce2Fe14B and Nd2Fe14B were found to form the continuous solid solution (Ce,Nd)2Fe14B. Ce-Fe4B4 and NdFe4B4 also form the solid solution (Ce,Nd)-Fe4B4. The isothermal section consists of 8 three-phase regions and 2 four-phase regions.

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Coupled substitutions in goldfieldite–tetrahedrite minerals from the Iriki mine, Japan

Mineralogical Magazine ◽

10.1180/minmag.1991.055.381.03 ◽

1991 ◽

Vol 55 (381) ◽

pp. 515-519 ◽

Cited By ~ 8

Author(s):

Masaaki Shimizu ◽

Chris J. Stanley

Keyword(s):

Solid Solution ◽

Continuous Solid Solution ◽

Chemical Compositions ◽

Coupled Substitution ◽

Compositional Variations ◽

The Ideal

AbstractChemical compositions of goldfieldite-tetrahedrite series minerals from the Iriki mine in Japan are reported for the frst time. The compositional variations of coexisting goldfieldite [atomic proportion Te > (Sb + As + Bi)], tellurian tetrahedrite [Sb > (Te + As + Bi)], and Te-free tetrahedrite from this locality are considered alongside data from the literature. These show that the substitution of (Sb, As)3+ for Te4+ in natural goldfieldite-tetrahedrite series minerals occurs by the following two mechanisms: (i) tetrahedrite, and goldfieldite, form a continuous solid-solution according to the coupled substitution of Cu+Te4+ for (Cu,Fe,Zn)2+(Sb,As)3+, and (ii) goldfieldite, and the ideal end-member, might also form a continuous solid-solution by the coupled substitution of ☐(vacancy)Te4+ for Cu+(Sb,As)3+. According to this work, the general formulae of tellurian tetrahedrite and goldfieldite are, therefore, respectively, , with x = 0 to 2 and , with y = 0 to 2.

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On the Equilibrium Diagrams of the Binary Systems of Continuous Solid Solution Type

Journal of the Japan Institute of Metals and Materials ◽

10.2320/jinstmet1937.3.76 ◽

1939 ◽

Vol 3 (2) ◽

pp. 76-81

Author(s):

Mituo Hara

Keyword(s):

Solid Solution ◽

Binary Systems ◽

Continuous Solid Solution ◽

Solution Type

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Structural Behaviour of Solid Solution in the SmAlO3−TbAlO3 System

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.230.39 ◽

2015 ◽

Vol 230 ◽

pp. 39-44 ◽

Cited By ~ 1

Author(s):

Natalja Ohon ◽

Leonid Vasylechko ◽

Yurii Prots ◽

Marcus Schmidt ◽

I.I. Syvorotka

Keyword(s):

Thermal Analysis ◽

Solid Solution ◽

Continuous Solid Solution ◽

Lattice Parameter ◽

X Ray Diffraction ◽

Structural Behaviour ◽

X Ray ◽

Synchrotron Powder Diffraction ◽

Orthorhombic Perovskite

Phase and structural behaviour in the SmAlO3–TbAlO3system has been studied in a whole concentration range by means of laboratory X-ray diffraction,in situhigh temperature synchrotron powder diffraction and differential thermal analysis. Formation of the continuous solid solution Sm1−xTbxAlO3with the orthorhombic perovskite structure (space groupPbnm) has been established. Peculiarity of the investigated system is lattice parameter crossovers resulted in the existence of three regions with different relations of the lattice parameters. Based on the results obtained, as well as an available literature data for the “pure” SmAlO3and TbAlO3, a phase diagram of the pseudo-binary SmAlO3–TbAlO3system has been constructed.

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