A POSITRON-ANNIHILATION STUDY OF CRYSTALLINE, QUASI-CRYSTALLINE AND AMORPHOUS AL-CU-T (T = FE, V) ALLOYS

被引：10
作者：
LAWTHER, DW
BEYDAGHYAN, G
DUNLAP, RA
机构：
[1] Dept. of Phys., Dalhousie Univ., Halifax, NS
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1990年 / 2卷 / 28期
关键词：
D O I：
10.1088/0953-8984/2/28/016
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Results of a Doppler broadening positron annihilation study on crystalline, quasicrystalline and amorphous Al-Cu-T (T=FeV) alloys are presented. For the first time it is shown that a quasicrystal (Al65Cu 20Fe15) can be prepared with a positron trapping site concentration below the sensitivity of positron annihilation spectroscopy. The results and those of similar studies previously reported for quasicrystalline Al-Mn-Si and Al-Cu-Li are discussed in conjunction with possible stabilisation mechanisms.
引用
收藏
页码：6239 / 6244
页数：6
相关论文
共 28 条
  • [1] DYNAMICAL PHASONS IN A PERFECT QUASICRYSTAL
    BANCEL, PA
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (25) : 2741 - 2744
  • [2] BETTERTON JO, 1952, J I MET, V80, P459
  • [3] Brandt W., 1967, POSITRON ANNIHILATIO, P155
  • [4] ICOSAHEDRAL ALCUFE ALLOYS - TOWARDS IDEAL QUASI-CRYSTALS
    CALVAYRAC, Y
    QUIVY, A
    BESSIERE, M
    LEFEBVRE, S
    CORNIERQUIQUANDON, M
    GRATIAS, D
    [J]. JOURNAL DE PHYSIQUE, 1990, 51 (05): : 417 - 431
  • [5] ANNEALING OF VACANCY-TYPE DEFECTS AND CRYSTALLIZATION OF ICOSAHEDRAL AL-MN-SI
    CHIDAMBARAM, R
    SANYAL, MK
    NAMBISSAN, PMG
    SEN, P
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (01) : 251 - 256
  • [6] CHIDAMBARAM R, 1990, B AM PHYS SOC, V35, P331
  • [7] A POSITRON-ANNIHILATION STUDY OF CRYSTALLINE, QUASI-CRYSTALLINE AND AMORPHOUS AL-MN-SI ALLOYS
    DUNLAP, RA
    LAWTHER, DW
    MARCH, RH
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1987, 17 (03): : L39 - L43
  • [8] HYDROGEN DIFFUSION IN AMORPHOUS CU50TI50 STUDIED BY POSITRON-ANNIHILATION SPECTROSCOPY
    DUNLAP, RA
    PUTNAM, AM
    VARDY, DS
    [J]. CANADIAN JOURNAL OF PHYSICS, 1988, 66 (06) : 476 - 477
  • [9] STRUCTURAL, ELECTRICAL AND MAGNETIC-PROPERTIES OF ICOSAHEDRAL AL-CO ALLOYS
    DUNLAP, RA
    STROINK, G
    DINI, K
    JONES, DF
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1986, 16 (09): : 1247 - 1254
  • [10] STRUCTURE AND STABILITY OF QUASI-CRYSTALLINE ALUMINUM TRANSITION-METAL ALLOYS
    DUNLAP, RA
    DINI, K
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1986, 16 (01): : 11 - 16
123