On the Evolution of Quasicrystalline and Crystalline Phases in Rapidly Quenched Al-Co-Cu-Ni Alloy

Simple item page
dc.creatorYadav, T. P.
dc.creatorMukhopadhyay, N. K.
dc.creatorTiwari, R. S.
dc.creatorSrivastava, O. N.
dc.date2006-10-12
dc.date.accessioned2026-07-07T07:27:28Z
dc.date.available2026-07-07T07:27:28Z
dc.descriptionThe occurrence of stable decagonal quasicrystalline phase in Al-Co-Ni and Al-Cu-Co alloys through conventional solidification is well established. Earlier, we have studied the effect of Cu substitution in place of Co in the Al70 Co15Ni15 alloy. Here we report the structural/micro-structural changes with substitution of Cu for Ni in rapidly solidified Al-Co-Ni alloys. The melt-spun ribbons have been characterized using X-ray diffractometry (XRD), Scanning and transmission electron microscopy (SEM & TEM). With an increase in Cu content in the melt spun Al70 Co15Cux Ni15-x (x=0 to 15) alloys, the relative amount of the decagonal phase decreased up to 10 at% of Cu. At this composition the quaternary alloy showed the coexistence of decagonal quasicrystal and superstructure of tau 3 vacancy ordered crystalline phases. The decagonal phase containing Cu showed more disordering compared to Al-Co-Ni alloys. The implication of the structural / microstructural changes due to Cu substitution in stable decagonal quasicrystal will be discussed
dc.description16 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0610347
dc.identifierhttp://arxiv.org/abs/cond-mat/0610347
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117390
dc.subjectMaterials Science
dc.titleOn the Evolution of Quasicrystalline and Crystalline Phases in Rapidly Quenched Al-Co-Cu-Ni Alloy
dc.typetext

Files

Collections

arXiv