Determination of the angles between the quasicrystal zone axes of the decagonal phase in Al–Mn alloys

Csanády, Ágnes; Urban, K.

doi:10.1557/jmr.1990.0057

Cited by 13 publications

(4 citation statements)

References 13 publications

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“…These EDPs and the angles between them agree with those EDPs reported by earlier workers for the Al-Mn DQC, [8,[28][29][30] especially the pseudo-fivefold p5 EDP after tilting about 61 deg (Figure 3(f)) and the pseudothreefold p3 EDP after tilting 79 deg (Figure 3(g)) from the tenfold axis.…”

Section: Ga-mn Decagonal Quasicrystalsupporting

confidence: 91%

Decagonal quasicrystal and related crystalline phases in Mn-Ga alloys with 52 to 63 a/o Ga

Kuo

1997

Metall Mater Trans A

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A decagonal quasicrystal (DQC) and six related intermetallic phases with large unit cells have been found in binary Mn-Ga alloys with 52 to 63 at. pct Ga by means of transmission electron microscopy (TEM). As does the Al-Mn DQC, the Ga-Mn DQC also has a periodicity of 1.25 nm along its tenfold axis. However, its Mn content, determined by electron microprobe X-ray analysis (about 45 to 50 at. pct Mn), is much higher than that of the Al-Mn DQC (about 20 to 30 at. pct Mn). The compositions of the intermetallic phases are about 53, 56, 58, and 62 at. pct Ga, corresponding respectively to the unknown structures of MnGa (50.7 to 53.4 at.

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Section: Ga-mn Decagonal Quasicrystalsupporting

confidence: 91%

Decagonal quasicrystal and related crystalline phases in Mn-Ga alloys with 52 to 63 a/o Ga

Kuo

1997

Metall Mater Trans A

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“…For the precise measurement of the tilt angles a method developed by Mayer, Csanady and Urban (1990) was used. Selected area diffraction patterns were obtained from sample areas with 0.3 μπι and 1 μπι diameter.…”

Section: Experimental Methodsmentioning

confidence: 99%

X-ray and electron diffraction investigations on the stable decagonal phase in Co — Ni — Al alloys

Kek¹,

Mayer²

1993

Zeitschrift Für Kristallographie - Crystalline Materials

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The stable decagonal phase in alloys with compositions of Co 15 Ni I5 Al 70 , Co 115 Ni 16 Al72.5, Co^sNij^l-^.s and Co 2 oNi 7 .5Al 72 .5 was investigated by X-ray and electron diffraction. All important projections of the reciprocal lattice of the decagonal phase were obtained by electron diffraction. The tilt angles between the individual zone axes were measured and compared with calculated angles. From the diffraction patterns the reciprocal lattice could be reconstructed. A simple method for the indexing of the reciprocal lattice is introduced. The indexing scheme is based on five linearly independent vectors. The indices for the reflections in the electron diffraction as well as the X-ray powder diffraction patterns are tabulated. The indices of the zone axes studied by electron diffraction could also be determined. In the X-ray diffraction studies a substantial variation of the number and of the position of the diffraction lines with alloy composition was found. The results are compared with results from the stable decagonal phase in the system Co -Cu-Al.

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“…Quite interesting and new objects can be obtained by connecting the magnetic particles by elastic linkers (Furst et al 1998, Furst andGast 1999). At present there are several interesting ideas for the application of chains of magnetic particles as diagnostic tools for establishing the presence of specific antibodies and for the creation of media for the fractionation of DNA by electrophoresis etc (Mayer et al 1997, Doyle et al 2002.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a chain of magnetic particles connected with elastic linkers

Cēbers¹

2003

J. Phys.: Condens. Matter

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The model of an elastic magnetic chain is considered. By numerical simulation of the dynamics of rod shapes acted on by magnetic and elastic forces in viscous fluid, it is shown that the characteristic 'U'-like metastable shapes (hairpins) can be formed. The characteristic 'S'-like long-living shapes are formed at intermediate stages, depending on the initial perturbation of the rod, and finally relax to the global energy minima corresponding to the straight rod. Further extensions of the model will include long-range magnetic interactions between distant parts of a rod.

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Determination of the angles between the quasicrystal zone axes of the decagonal phase in Al–Mn alloys

Cited by 13 publications

References 13 publications

Decagonal quasicrystal and related crystalline phases in Mn-Ga alloys with 52 to 63 a/o Ga

Decagonal quasicrystal and related crystalline phases in Mn-Ga alloys with 52 to 63 a/o Ga

X-ray and electron diffraction investigations on the stable decagonal phase in Co — Ni — Al alloys

Dynamics of a chain of magnetic particles connected with elastic linkers

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