Mössbauer effect study of the stable Al75Pd15Fe10 decagonal quasicrystal

Samples of the stable Al75Pd15Fe10 decagonal quasicrystal have been studied both in the as-cast state and after annealing. Structural properties were investigated using X-ray diffraction and Fe-57 Mossbauer effect studies. X-ray patterns show that annealing improves the degree of order in the decagonal phase. Mossbauer effect spectra show a well resolved quadrupole doublet and are distinct from the complex spectra of most metastable decagonal alloys. Spectra are analysed in terms of a shell distribution of quadrupole splittings. Results are discussed in terms of Mossbauer effect studies of other quasicrystals and structural models for the decagonal phase.PT: J; CR: BRAND RA, 1990, J PHYS-CONDENS MAT, V2, P6413 CZJZEK G, 1982, PHYS REV B, V25, P4908 DUNLAP RA, 1986, HYPERFINE INTERACT, V28, P963 DUNLAP RA, 1988, J PHYS F MET PHYS, V18, P1329 DUNLAP RA, 1991, STRUCT CHEM, V2, P501 DUNLAP RA, 1992, PHYSICS CHEM FINITE, V1, P527 EISCHUTZ M, 1986, PHYS REV LETT, V556, P169 GUPTA A, 1989, PHYS REV B, V39, P8757 KOOPMANS B, 1987, PHYS REV B, V35, P3005 SRINIVAS V, 1990, PHILOS MAG B, V61, P177 TSAI AP, 1990, JPN J APPL PHYS PT 2, V29, L1696 TSAI AP, 1991, PHIL MAG LETT, V64, P163 VANDERWOUDE F, 1987, CAN J PHYS, V65, P1301; NR: 13; TC: 4; J9: J NON-CRYST SOLIDS; PG: 4; GA: KP936Source type: Electronic(1