A contribution to the Al–Pd phase diagram

Twenty years of structure research on quasicrystals. Part I. Pentagonal, octagonal, decagonal and dodecagonal quasicrystals

“…A periodicity along the 10-fold axis was obtained by rapid solidifaction independently by different groups (Bancel, Heiney, 1986;Bendersky, 1986;Sastry, Suryanarayana, 1986). The phase diagram of Al--Pd was recently revised by Yurechko, Fattah, Velikanova, Grushko (2001).…”

Electron microscopy study of approximant phases in the Al–Cr–Fe system

“…O A and O B -phases are then described using an increment of τ + 2 and τ + 4, respectively. Phases with increment of τ + 3, τ + 4 and τ + 5 were observed in the Al-Pd [11,12], Al-Pd-Mn [13], AlPd-Co [14] and Al-Pd-Mn systems [15], respectively (see table II). …”

“…Indeed, deformation experiments of ξ'-AlPdMn lead to the formation of planar arrays of such defects [19]. Nevertheless, Yurechko et al have demonstrated that the ε 28 -AlPd phase (τ+3 structure) is a high temperature stable phase and a superstructure of the ε-AlPd phase, or in other words not only a defect structure [12]. In our case, the O A and O B phases were 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 F o r P e e r R e v i e w O n l y observed in a air quenched sample, which is constituted by nanodomains of several other structures.…”

Physical properties of the complex metallic alloy phases in the Al–Pd–Mn system

“…Some physical properties of single-crystalline samples of this compound grown by the selfflux technique were already reported [10]. Recently, centimeter-size single crystals of the ξ' phase and the related Ψ phase (containing about 1500 atoms in the unit cell) with the composition Al 74 Pd 22 Mn 4 were successfully grown using the Bridgman technique [11]. Here we present a study of their magnetic, electrical, thermal transport and thermoelectric properties.…”

“…Among the CMA materials, an interesting family of related structures was revealed in the Al-Pd alloys system [3,4] and its ternaries with transition metals (Mn, Fe, Co, Rh) [5][6][7][8][9]. The simplest regular structure discovered first in the Al-Pd-Mn [5,6] system, designated as ξ', contains 320 atoms in its orthorhombic unit cell.…”