Crystal Structure Variation of Ru2Si3 Upon Alloying with Mn


Article Preview

Manganese-alloyed Ru2Si3-based alloys with various alloy compositions have been prepared and the phase relationships of these alloys have been investigated as a function of the Mn concentration using X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy. A series of Ru1-xMnxSiy chimney-ladder phases is confirmed to be formed over a wide compositional range (x ≥0.12). These chimney-ladder phases are considered to be formed to stabilize the HT-Ru2Si3 chimney-ladder phase through the substitution of Ru with Mn. The compositions of the chimney-ladder phases are, however, significantly deviated from the idealized composition satisfying the valence electron concentration rule: VEC=14.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




T. Koyama et al., "Crystal Structure Variation of Ru2Si3 Upon Alloying with Mn", Advanced Materials Research, Vols. 26-28, pp. 229-232, 2007

Online since:

October 2007




[1] C.B. Vining: AIP Conf. Proc. 246 (1992), p.338.

[2] Y. Arita, S. Mitsuda, Y. Nishi, T. Matsui, and T. Nagasaki: J. Nucl. Mater. 294 (2001), p.202.

[3] B.A. Simkin, A. Ishida, N.L. Okamoto, K. Kishida, K. Tanaka and H. Inui: Acta Mater. 54 (2006) p.2857.

[4] A. Ishida, N.L. Okamoto, K. Kishida, K. Tanaka and H. Inui, in: Advanced Intermetallic-Based Alloys, MRS Symp. Proc. Vol. 980, edited by C.L. Fu et al., (MRS, Pittsburgh, Pennsylvania) (2007), p. II5. 37. 1.

[5] H. Nowotny, in: The Chemistry of Extended Defects in Non-Metallic Solids, edited by E.R. Eyring, M. O'Keefe (North-Holland, Amsterdam, 1970), p.223.

[6] W.B. Pearson: Acta Cryst. B 26 (1970), p.1044.

[7] H.Q. Ye and S. Amelinckx: J. Solid State Chem. 61, (1986), p.8.

[8] Y. Imai, A. Watanabe: Intermetallics 13 (2005), p.233.

[9] C.P. Susz, J. Muller, K. Yvon, E. Parthe: J. Less-Common Metals 71 (1980), p. P1 Fig. 4. Variation of the 00l systematic row in the.

[120] M SAED patterns of a series of Ru1-xMnxSiy chimney-ladder phases. Fig. 5. X/M ratio (y) for the Ru1-xMnxSiy chimney-ladder phases plotted against Mn/M ratio (x).