Brillouin scattering from the icosahedral quasicrystal<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Al</mml:mi></mml:mrow><mml:mrow><mml:mn>63.5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>24.5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:ma

Vanderwal, Jake; Zhao, Pu; Walton, D.

doi:10.1103/physrevb.46.501

Cited by 18 publications

(9 citation statements)

References 9 publications

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“…The alloy composite exhibits a 2% elastic deformation and a fracture stress of 1850 MPa, respectively. The mechanical property is superior to the early developed quasicrystalline [20] I-phase 250 AE 15 (fracture) 0.35 172 [21] Zr 65 Al 7.5 Ni 10 Cu 12.5 Ag 5 [10] BMGs 1650 (fracture) 1.95 84.5 Zr 65 Al 7.5 Ni 10 Cu 12.5 Ag 5 [10] 85% Quasicrystal þ 15% glass 1200 (fracture) 1.5 90 Zr 58 Al 9 Ni 9 Cu 14 Nb 10 (this work) 90% Quasicrystal þ 10% glass w1850 (fracture) w2.0 92 materials, while is comparable to Zr 65 Al 7.5 Ni 10 Cu 17.5Àx Ag x (x ¼ 5 and 10 at.%) bulk metallic glasses and their nanocomposites. In comparison with the extreme brittleness of Al-based quasicrystalline alloys, the significant improvement in the mechanical property seems to be related to the existence of a glassy phase in between the large-grain I-phases.…”

Section: Discussionmentioning

confidence: 97%

An in situ bulk Zr58Al9Ni9Cu14Nb10 quasicrystal-glass composite with superior room temperature mechanical properties

Qiang¹,

Zhang²,

Xie³

et al. 2007

Intermetallics

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Section: Discussionmentioning

confidence: 97%

An in situ bulk Zr58Al9Ni9Cu14Nb10 quasicrystal-glass composite with superior room temperature mechanical properties

Qiang¹,

Zhang²,

Xie³

et al. 2007

Intermetallics

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“…͑3͔͒. Vanderwal et al 33 estimated the roomtemperature acoustic velocities in iϪ (24.5,12) from Brillouin scattering spectroscopy of surface waves, from which, accepting the stated precision, ⌰ 0 el ϭ518(5) K. Tanaka et al 34 used RUS ͑resonant ultrasound spectroscopy 35 ͒ data to obtain the elastic constants of i- (20,15) from 4 to 800 K, from which ⌰ 0 el ϭ548(8) and 529͑8͒ K at 4 and 290 K, respectively; the uncertainties are associated with estimated impurity phases in this sample. Finally, Quilichini and Janssen 42 give sound velocities from earlier 400°C inelastic neutron-scattering data 39 from which ⌰ 0 el ϭ501 K, with no uncertainties given.…”

Section: Fig 4 C P /T ͑A͒ and ␣/T ͑B͒ Vs T 2 For The Lower-temperatmentioning

confidence: 99%

“…A direct relationship exists between low-temperature C p (T) data and low-temperature sound velocities as determined both acoustically and from the limiting low-energy slopes of inelastic neutron scattering ͑INS͒ acoustic dispersion relations. 32 Vanderwal et al 33 obtained the longitudinal and transverse sound velocities ͑elastic constants͒ for i- (24.5,12) from Brillioun scattering data. Tanaka et al 34 used resonant ultrasound spectroscopy ͑RUS͒ to obtain the temperature-dependent elastic constants for i- (20,15) ͑and Al-Pd-Mn and Al-Cu-Fe-Ru͒ from 4 K to 800°C.…”

Section: Introductionmentioning

confidence: 99%

Linear thermal expansivity (1–300 K), specific heat (1–108 K), and electrical resistivity of the icosahedral quasicrystali−Al61.4Cu25.4<

2002

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Linear thermal expansivity (α, 1-300 K), heat capacity (C p , 1-108 K), and electrical resistivity (ρ, 1-300 K) measurements are reported for single grain i-Al 61.4 Cu 25.4 Fe 13.2 quasicrystals as a function of sample processing. While ρ(T) is sensitive to sample treatment, both C p and α are relatively insensitive (to a few percent) except at the lowest temperatures (below 4 K), where an inverse correlation between ρ and the electronic C p coefficient γ appears to exist. Dispersion effects (deviations from Debye-like behavior) in both C p and the lattice Grüneisen parameter Γ are large and comparable with those for single grain i-Al 71 Pd 21 Mn 08 quasicrystal and its Al 72 Pd 25 Mn 03 approximant [Phys. Rev. B 65, 184206 (2002)]. Since the 0-K Debye temperature [Θ 0 =536(2)K] is in reasonable agreement with that from 4-K elastic constants [548(8) K], a previous postulate for AlPdMn that these large dispersion effects are associated with high dispersion lattice modes in off-symmetry directions also appears to apply to i-Al-Cu-Fe. A comparison with other C p data suggests that the major effects of sample treatment (and composition) are reflected, with a few exceptions, in the values of γ, with remarkably similar lattice contributions.

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“…5 Finally, information on the temperature dependence of the bulk modulus for i-phases with close composition exists in the literature. 6,7 …”

Section: Introductionmentioning

confidence: 99%

Grüneisen’s law and particularities of electronic excitations in quasicrystals

Prekul

Shchegolikhina

Подгорных

2009

Low Temperature Physics

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Articles you may be interested inInfluence of leaching on surface composition, microstructure, and valence band of single grain icosahedral Al-Cu-Fe quasicrystal Electrical and magnetic property of Al 62 Cu 25.5 Fe 12.5 icosahedral quasicrystal: Spin-orbit scattering AIP Conf. Proc. 1512, 994 (2013); 10.1063/1.4791377 Valence fluctuation and electron-phonon coupling in La 68 − x Ce x Al 10 Cu 20 Co 2 ( x = 0 , 34, and 68) metallic glasses J. Appl. Phys. 108, 033525 (2010); 10.1063/1.3467516Low-temperature anomalies heat capacity, Ohmic loss in the 0-100 MHz range, and linear dimensions of samples of uranium and some of its compounds Low Temp.

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Brillouin scattering from the icosahedral quasicrystalAl63.5Cu24.5

Cited by 18 publications

References 9 publications

An in situ bulk Zr58Al9Ni9Cu14Nb10 quasicrystal-glass composite with superior room temperature mechanical properties

An in situ bulk Zr58Al9Ni9Cu14Nb10 quasicrystal-glass composite with superior room temperature mechanical properties

Linear thermal expansivity (1–300 K), specific heat (1–108 K), and electrical resistivity of the icosahedral quasicrystali−Al61.4Cu25.4<

Grüneisen’s law and particularities of electronic excitations in quasicrystals

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