APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Applied Physics Letters / Volume 77 / Issue 7 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 77, 978 (2000); http://dx.doi.org/10.1063/1.1289069 (3 pages)

Formation of icosahedral phase from amorphous Zr65Al7.5Cu12.5Ni10Ag5 alloys

J. K. Lee1, G. Choi1, D. H. Kim1, and W. T. Kim2

1Center for Noncrystalline Materials, Department of Metallurgical Engineering, Yonsei University, 134 Shinchon-dong, Seoul, 120-749, Korea
2Center for Noncrystalline Materials, Department of Physics, Chongju University, 36 Naedok Dong, Chongju 360-764, Korea

(Received 8 February 2000; accepted 20 June 2000)

The kinetic behavior of quasicrystalline phase formation in amorphous Zr65Al7.5Cu12.5Ni10Ag5 alloys has been studied by using differential scanning calorimetry (DSC), x-ray diffractometry, and transmission electron microscopy. DSC trace obtained during continuous heating from 473 to 873 K shows two distinct exotherms with peak temperatures of 727 and 776 K. The first and second exothermic reactions, respectively, correspond to the formation of quasicrystalline phase from the amorphous matrix and the formation of tetragonal CuZr2 and hexagonal Zr6NiAl2 phases from the previously formed quasicrystalline phase. Partial replacement of Cu by Ag enhanced the formation of quasicrystalline phase from the amorphous structure. Johnson–Mehl–Avrami analysis of isothermal transformation data suggests that the formation of quasicrystalline phase is not entirely polymorphic in nature and may involve partitioning of solute at a later stage. © 2000 American Institute of Physics.

© 2000 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

zirconium alloys, aluminium alloys, copper alloys, nickel alloys, silver alloys, quasicrystals, differential scanning calorimetry, transmission electron microscopy, annealing, X-ray diffraction, metallic glasses

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1289069

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    D. D. Kofalt, S. Nanao, T. Egami, K. M. Wong, and S. J. Poon, Phys. Rev. Lett. 57, 114 (1986).

    S. J. Poon, A. J. Drehman, and K. R. Lawless, Phys. Rev. Lett. 55, 2324 (1985).

    U. Koster, J. Meinhardt, S. Roos, and H. Liebertz, Appl. Phys. Lett. 69, 179 (1996)APPLAB000069000002000179000001.

    L. Q. Xing, J. Eckert, W. Loser, and L. Schultz, Appl. Phys. Lett. 73, 2110 (1998)APPLAB000073000015002110000001.

    A. Peker and W. L. Johnson, Appl. Phys. Lett. 63, 2342 (1993)APPLAB000063000017002342000001.

    M. W. Chen, T. Zhang, A. Inoue, A. Sakai, and T. Sakurai, Appl. Phys. Lett. 75, 1697 (1999)APPLAB000075000012001697000001.

    V. Elser, Phys. Rev. B 32, 4892 (1985).

    M. Avrami, J. Chem. Phys. 7, 1103 (1939)JCPSA6000007000012001103000001.

    Y. Shen, S. J. Poon, and G. J. Shiflet, Phys. Rev. B 34, 3516 (1986).


For access to citing articles, you need to log in.



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Formation of icosahedral phase from amorphous Zr65Al7.5Cu12.5Ni10Ag5 alloys
  2. Formation of quasicrystals in Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass
  3. Ductile quasicrystalline alloys
  4. Formation of icosahedral quasicrystalline phase in Zr70Ni10M20(M=Pd, Au, Pt) ternary metallic glasses
  5. Photoluminescence of CdSe nanocrystallites embedded in BaTiO3 matrix
Go to AIP Home
Copyright © American Institute of Physics
close