On the stabilization of Zr5Al3 in the Mn5Si3-type structure by interstitial oxygen

Kim, S.-J.; Kematick, Robert J.; Yi, Shu; Franzen, Hugo F.

doi:10.1016/0022-5088(88)90075-6

Cited by 11 publications

(6 citation statements)

References 5 publications

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“…However, an increased inertness is common for ternary derivatives, and pure Zr 5 Sb 3 is perfectly stable otherwise . Zr 5 Al 3 has also been shown to be stable and not to require oxygen . An early conclusion that Zr 5 Si 3 was really a ternary phase and always contained small amounts of B, C, N, or O, even 0.3 atom % C, , was put forth in parallel with similar research on the group 5 and 6 silicides.…”

Section: Binary Phasesmentioning

confidence: 93%

“…19 Zr 5 Al 3 has also been shown to be stable and not to require oxygen. 39 An early conclusion that Zr 5 Si 3 was really a ternary phase and always contained small amounts of B, C, N, or O, even 0.3 atom % C, 6,8 was put forth in parallel with similar research on the group 5 and 6 silicides. (The last are all tetragonal W 5 Si 3 -type compounds that do transform to the hexagonal phases on the addition of fairly small amounts of C, O, etc.…”

Section: Binary Phasesmentioning

confidence: 99%

See 1 more Smart Citation

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

et al. 1998

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The many A5B3 phases that exhibit hexagonal Mn5Si3-type structures by and large have a nearly unique abilities to bind diverse heteratoms Z in a preformed cavity within a chain of confacial trigonal antiprisms of A. The historical development of this chemistry as interstitially stabilized Nowotny phases and recent research to clarify the necessity for Z and the range of Z possible in certain hosts are described. Some hosts may bind as many as 20 different interstitial Z. Structures, stoichiometric relationships, volume effects, electronic guidelines, anomalies, Nowotny phases that require Z for stability, and a few band calculations are described. The special cases of hosts composed of divalent cations with pnictogens (As−Bi) and tetrels (Si−Pb) and their reactions with H and F are considered. The former Mn5Si3-type phase take up some H, but many convert at higher H or F concentrations to the orthorhombic Ca5Sb3F-type (formerly β-Yb5Sb3) structure. Many of the nominally valence-precise tetrelides with Cr5B3 (or other) structures react with H or F to give the new stuffed Cr5B3 versions with Z in a tetrahedral cavity (a Ca5Sn3F or La5Pb3O type). Some early results demonstrate that highly significant reduction of high-temperature corrosion rates of Ti5Si3 can be secured for Ti5Si3Z, Z = C or O. The number of uninvestigated Mn5Si3-type host−interstitial Z systems and the unknown ways in which various Z affect chemical and physical properties in each system are very large.

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Section: Binary Phasesmentioning

confidence: 93%

Section: Binary Phasesmentioning

confidence: 99%

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

et al. 1998

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“…By HE-XRD, the structure of Zr5Al3 was identified as hexagonal P63/mcm (D88, Mn5Si3-type). In contrast to Zr5Al3 of the tetragonal W5Si3-type, the Mn5Si3-type is only observed for Zr5Al3 when oxygen occupies otherwise empty octahedral sites in this structure [44]. Therefore, this phase is considered to show up when stabilized by impurities, as already observed in other systems [45,46].…”

Section: Resultsmentioning

confidence: 58%

Experimental Investigation of Phase Equilibria in the Ti—Al—Zr System at 1000–1300 °C

et al. 2022

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Four partial isothermal sections of the Ti—Al—Zr system up to 60 at. % Al and 30 at. % Zr were experimentally established between 1000–1300 °C. Six heat-treated alloys were analysed by scanning electron microscopy, transmission electron microscopy, electron probe microanalysis, conventional and high-energy X-ray diffraction, and differential thermal analysis. Phase equilibria were determined between B2-ordered (β0), βTi,Zr, αTi, Ti3Al, TiAl, and ZrAl2.

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“…Increasing research interest has emerged lately on the binary compound M 5 X 3 (M=alkaline earth or transition metal, and X=main group elements including Al, Si and As families), which includes superconductivity [1][2][3][4][5][6][7], ferro/antiferromagnetism [8][9][10][11][12], host-interstitial chemistry [9][10][11][12][13][14][15][16][17], and high temperature structural applications [18][19][20]. These M 5 X 3 phases are found crystallized in several different unique crystal systems, namely; hexagonal Mn 5 Si 3 -type [21], tetragonal Cr 5 B 3 [22] and W 5 Si 3 -type [23], and orthorhombic Nb 5 As 3 [24] and Y 5 Bi 3 -type [25] structures.…”

Section: Introductionmentioning

confidence: 99%

Superconductivity and phase diagram in a transition metal doped Zr₅Ge₃ compound

Li¹,

Liu²,

Anand³

et al. 2018

Supercond. Sci. Technol.

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Systematic study of transition metal doped Zr 5 Ge 3 at different sites has been performed, and superconductivity only occurs with Pt doping at the Ge site. Superconductivity remains absent with other transition metal doping such as Y, Cr, Ir, and Pd at other different sites. Coincidental with our previous findings in the Zr 5 Ge 3−x Ru x system, it appears that the induced superconductivity is not only site-selective (only at the Ge site), but also dopant selective (only with Pt and Ru dopants). The bulk superconductivity in Zr 5 Ge 3−x Pt x is investigated through magnetization, electrical resistivity, and heat capacity measurement, and the superconducting phase diagram of Zr 5 Ge 3−x Pt x is also established.

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On the stabilization of Zr5Al3 in the Mn5Si3-type structure by interstitial oxygen

Cited by 11 publications

References 5 publications

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

Experimental Investigation of Phase Equilibria in the Ti—Al—Zr System at 1000–1300 °C

Superconductivity and phase diagram in a transition metal doped Zr₅Ge₃ compound

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On the stabilization of Zr5Al3 in the Mn5Si3-type structure by interstitial oxygen

Cited by 11 publications

References 5 publications

Widespread Interstitial Chemistry of Mn5Si3-Type and Related Phases. Hidden Impurities and Opportunities

Widespread Interstitial Chemistry of Mn5Si3-Type and Related Phases. Hidden Impurities and Opportunities

Experimental Investigation of Phase Equilibria in the Ti—Al—Zr System at 1000–1300 °C

Superconductivity and phase diagram in a transition metal doped Zr5Ge3 compound

Contact Info

Product

Resources

About

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

Widespread Interstitial Chemistry of Mn₅Si₃-Type and Related Phases. Hidden Impurities and Opportunities

Superconductivity and phase diagram in a transition metal doped Zr₅Ge₃ compound