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Phase Stability of the Al-Cu-Co Decagonal Phase Under Conventional Solidification

Published online by Cambridge University Press:  01 February 2011

J.O. Téllez-Vázquez ,
C. Patiño-Carachure ,
A. Bedolla-Jacuinde ,
E. García-De León ,
R. Pérez  and
G. Rosas
J.O. Téllez-Vázquez
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, México. E-mail: oswald.tellez@gmail.com
C. Patiño-Carachure
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, México. E-mail: oswald.tellez@gmail.com
A. Bedolla-Jacuinde
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, México. E-mail: oswald.tellez@gmail.com
E. García-De León
Affiliation:
Facultad de Química, UNAM, Coyoacán, México, D. F., 04510, MEXICO.
R. Pérez
Affiliation:
Centro de Ciencias Físicas, Universidad Nacional Autónoma de México, México, D.F., México.
G. Rosas
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, México. E-mail: oswald.tellez@gmail.com
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Abstract

Al65Cu15Co20 and Al67Cu13Co20 (% at.) alloys with composition near to the quasicrystalline decagonal phase was produced by melting in an induction furnace and solidified at room temperature. The structural characterization was carried out by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). For the structural model of decagonal quasicrsytals, it is important to know which crystalline phases have a structural relationship on the formation and decomposition of this type of phases. In the present investigation, the decagonal phase usually coexist with small amounts of the Al(Cu,Co) cubic phase of B2 type. Then, the quasicrystalline (QC) phase is outside of a single-phase region under equilibrium conditions at room temperature. DSC and TGA techniques showed the thermal stability of the alloy system up to 1000 °C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1242: Symposium 4 – Materials Characterization , 2009 , S4-P116
Copyright
Copyright © Materials Research Society 2010

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References

REFERENCES

1. He, L.X., Zhang, Z., Wu, Y.K., Kuo, K.H., Inst. Phys. Conf. Ser. No. 93: Vol. 2, Chapter 13, Conf. EUREM 501–502 (1988).Google Scholar
2. Mukhopadhyay, N.K., Murthy, G.V.S., Murty, B.S., Weatherly, G.C., Philos. Mag. Lett. Vol. 82, 383–392, (2002).Google Scholar
3. Raghavan, V. JPEDAV 2.9:267–269, (2008).Google Scholar
4. Grushko, B., Urban, K., J. Mater. Res. 6, 2629–2636, (1991).Google Scholar
5. Rosas, G., Angeles-Chavez, C. and Perez, R., Journal of New Materials for Electrochemical Systems 8, 149–154 (2005).Google Scholar
6. Grushko, B., Phase Transitions, 44, p 99–110, (1993).Google Scholar
7. Murthy, G. V. S., Ray, A. K., Minz, R. K., Mukhopadhyay, N. K., Journal of Materials Science Lett. Vol 18, 255–258, (1999).Google Scholar
8. He, L.X., Li, X.Z., Zhang, Z., Kuo, K.H., Phys. Rev. Lett. 61, 1116–1118 (1988).Google Scholar
9. deBoissieu, M., Phil. Mag. (2008).Google Scholar
10. Widom, M., Philosophical Magazine; Vol. 00, No. 00, 00, 1–10, (2008).Google Scholar
11. He, L.X., Li, X.Z., Zhang, Z., Kuo, K.H., Phys. Rev. Lett. 61, 1116–1118, (1988).Google Scholar
12. Bogdanowicz, W., Cryst. Res. Technol. 40, No. 4/5, 488–491 (2005).Google Scholar
13. Raghavan, V., Journal of Phase Equilibria and Diffusion Vol. 29 No. 3 (2008).Google Scholar
14. Mukhopadhyay, N. K., Yadav, T. P., Srivastava, O. N., Philos. Mag. Lett. Vol. 82, No 16, 2979–2993, (2002).Google Scholar
15. Salazar, M., Perez, R., Rosas, G., Journal of New Materials for Electrochemical Systems 8, 97–100 (2005).Google Scholar
16. Frommery, George and Knippscheer, Sven, in Handbook of Aluminum, Vol. 2, edited by Totten, George E., Scott MacKenzie, D.,(Marcel Dekker, New York, 2003), p. 603.Google Scholar
17. Tiwari, G. P., Ramanujan, R. V., Journal of Materials Science Lett. Vol. 36 271–283, (2001).Google Scholar