The Phase Investigation of Mo + 2(1 - x)Si + 2xAl Compounds

Abstract

X-ray powder diffraction data for Mo2.85Al1.91Si4.81 are presented here. The new Mo2.85Al1.91Si4.81 compound was successfully prepared, using the self-propagating high-temperature synthesis (SHS) technique. The starting atomic mixture of reactant powders was Mo + 2(1 - x)Si + 2xAl with 0.2 ≤ x ≤ 0.5. The final powder compound obtained by the SHS technique was determined to be in x = 0.2; Mo(Si, Al)2 and in 0.3 ≤ x ≤ 0.5; Mo2.85Al1.91Si4.81. respectively X-ray powder diffraction pattern of Mo2.85Al1.91Si4.81 was recorded using an X-ray powder diffractometer and CuKa radiation that have been analyzed by automatic indexing programs. Mo2.85Al1.91Si4.81 was found to be hexagonal.

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References

[1] Yazdani-Rad R., Tayebifard S.A., Doroudian M., “Influence of Compaction Pressure and Atmosphere on SHS of Molybdenum Disilicide”, International J. of Engineering Science, 14, 2 (2003) 51-63.

[2] Yazdani-Rad R., Tayebifard S.A., Doroudian M., “Effect of preheating on SHS of MoSi2”, International J. of Engineering Science, 13, 2 (2002) 73-78.

[3] Ramberg C. E., Worrell W. L., “Oxidation Kinetics and Composite Scale Formation in the System Mo (Si,Al)2”,J. Am. Ceram. Soc., 85, 2 (2002) 444-452.

[4] Lee J.H., Nersisyan H.H., Won C.W., “The combustion synthesis of iron group metal fine powders”, J. Solid State Chemistry, 177 (2004) 251–256.

[5] Boutif A., Louer D., “Indexing of powder diffraction patterns for low symmetry lattices by the successive dichtomy method”, J. Appl. Crystallogr., 24 (1991) 987-993.

[6] Tayebifard S.A., Ahmadi K., Yazdani-Rad R., Doroudian M., “ New X-ray powder diffraction data for Mo2.85Al1.91Si4.81”, Powder Diffraction, 21, 3 (2006) 238-240.

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History

  • Receive Date: 02 July 2025
  • Revise Date: 04 February 2026
  • Accept Date: 02 July 2025

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