Crystal Structure Investigations on the Zr-Al and Hf-Al Systems.

Edshammar, Lars-Erik; Mohilner, Patricia R.; Katz, Alfred; Motzfeldt, K.; Theander, Olof; Flood, H.

doi:10.3891/acta.chem.scand.16-0020

Cited by 21 publications

(6 citation statements)

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“…The refined lattice parameters of the IMC Zr2Al3 and ZrAl3 minor phases deviate from their previously published values [44,45]. This may result either from the small observed statistics corresponding to these minor phases or from some doping of the Al sites in these phases with LBE.…”

Section: Neutron Diffraction Of Reactive Hot-pressed Zr2(albipb)ccontrasting

confidence: 60%

“…Another set of reflections that belonged to a competing phase could be indexed by a cubic structure (space group Fm-3m) with lattice parameter a  4.68 Å, which corresponds to ZrC [43]. Two more minor phases were identified as Zr2Al3 [44], and ZrAl3 [45]. The RT NPD pattern (Fig.…”

Section: Neutron Diffraction Of Reactive Hot-pressed Zr2(albipb)cmentioning

confidence: 99%

“…The starting ZrC structure was assumed to have the cubic Fm-3m structure with Zr in 4a(0,0,0) and C in 4b(1/2,1/2,1/2). The two minor impurity phases were assumed to have the structures reported in literature [44,45]. The refined parameters of the structural model are summarized in Table 1.…”

Section: Neutron Diffraction Of Reactive Hot-pressed Zr2(albipb)cmentioning

confidence: 99%

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Compatibility of Zr2AlC MAX phase-based ceramics with oxygen-poor, static liquid lead–bismuth eutectic

et al. 2020

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This work investigates the compatibility of Zr2AlC MAX phase-based ceramics with liquid LBE, and proposes a mechanism to explain the observed local Zr2AlC/LBE interaction. The ceramics were exposed to oxygen-poor (CO  2.210 -10 mass%), static liquid LBE at 500°C for 1000 h. A new Zr2(Al,Bi,Pb)C MAX phase solid solution formed in-situ in the LBE-affected Zr2AlC grains. Out-of-plane ordering was favorable in the new solid solution, whereby A-layers with high and low-Bi/Pb contents alternated in the crystal structure, in agreement with first-principles calculations. Bulk Zr2(Al,Bi,Pb)C was synthesized by reactive hot pressing to study the crystal structure of the solid solution by neutron diffraction.

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Section: Neutron Diffraction Of Reactive Hot-pressed Zr2(albipb)ccontrasting

confidence: 60%

Section: Neutron Diffraction Of Reactive Hot-pressed Zr2(albipb)cmentioning

confidence: 99%

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Compatibility of Zr2AlC MAX phase-based ceramics with oxygen-poor, static liquid lead–bismuth eutectic

et al. 2020

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“…The initial crystal structures have been built on the basis of the experimental crystallographic data of Al, a-Hf and ten Hf-Al intermetallics [10,12,14,22,[26][27][28][29][30][31]. The optimized structural parameters are listed in Tables 1 and 2.…”

Section: Structural Properties and Stabilitymentioning

confidence: 99%

Phase stability and anisotropic elastic properties of the Hf–Al intermetallics: A DFT calculation

Duan

Wu²,

Huang

et al. 2015

Computational Materials Science

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“…During initial studies of the Al-Hf binary system, researchers [19][20][21] identified several binary compounds, including AlHf 2 , Al 2 Hf 3 , Al 3 Hf 4, AlHf, Al 3 Hf 2 , Al 2 Hf, and Al 3 Hf. The crystal structure and cell parameters of these compounds were also determined.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Phase Equilibria in the Al–Mo–Hf Ternary System at 400 °C and 600 °C

Liu,

Yu,

Liu

et al. 2024

Processes

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This study investigates the phase equilibria of the Al-Mo-Hf ternary system at 400 °C and 600 °C using X-ray diffraction (XRD) and electron probe microanalysis (EPMA/WDS) techniques. Seven three-phase and five two-phase regions were identified at 400 °C, while eight three-phase and four two-phase regions were identified at 600 °C. Despite variations in the solid solubility ranges of certain compounds, the distribution of phase zones in the isothermal cross-section remained consistent at both temperatures. Using the experimental results and logical deductions, isothermal cross-sections were constructed for the Al-Mo-Hf ternary system at 600 °C and 400 °C.

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Crystal Structure Investigations on the Zr-Al and Hf-Al Systems.

Cited by 21 publications

References 0 publications

Compatibility of Zr2AlC MAX phase-based ceramics with oxygen-poor, static liquid lead–bismuth eutectic

Compatibility of Zr2AlC MAX phase-based ceramics with oxygen-poor, static liquid lead–bismuth eutectic

Phase stability and anisotropic elastic properties of the Hf–Al intermetallics: A DFT calculation

Experimental Investigation of Phase Equilibria in the Al–Mo–Hf Ternary System at 400 °C and 600 °C

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