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Comparison among the local atomic order of amorphous TM-Ti alloys (TM = Co, Ni, Cu) produced by mechanical alloying studied by EXAFS

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Abstract.

We have investigated the local atomic structure of amorphous TM-Ti alloys (TM = Co, Ni, Cu) produced by Mechanical Alloying by means of EXAFS analyses on TM and Ti K-edges. Coordination numbers and interatomic distances for the three alloys where found and compared. EXAFS results obtained indicated a shortening in the unlike pairs TM-Ti as the difference between d electrons of TM and Ti atoms increases, suggesting an increase in the chemical short range order (CSRO) from TM = Co to Cu.

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Authors and Affiliations

  1. Departamento de Física, Universidade Federal de Santa Catarina, 88040-900, Florianópolis SC, Brazil

    K. D. Machado, J. C. de Lima, C. E. M. Campos & T. A. Grandi

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  1. K. D. Machado
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  2. J. C. de Lima
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  3. C. E. M. Campos
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  4. T. A. Grandi
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Corresponding author

Correspondence to K. D. Machado.

Additional information

Received: 12 October 2003, Published online: 9 April 2004

PACS:

61.43.Dq Amorphous semiconductors, metals, and alloys - 61.10.Ht X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc. - 81.20.Ev Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

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Machado, K.D., de Lima, J.C., Campos, C.E.M. et al. Comparison among the local atomic order of amorphous TM-Ti alloys (TM = Co, Ni, Cu) produced by mechanical alloying studied by EXAFS. Eur. Phys. J. B 37, 421–424 (2004). https://doi.org/10.1140/epjb/e2004-00076-2

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  • DOI: https://doi.org/10.1140/epjb/e2004-00076-2

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