Al-Ru (Aluminum-Ruthenium)
- PDF / 94,476 Bytes
- 1 Pages / 612 x 792 pts (letter) Page_size
- 103 Downloads / 179 Views
JPEDAV (2006) 27:426 DOI: 10.1361/154770306X116504 1547-7037/$19.00 ©ASM International
Al-Ru (Aluminum-Ruthenium) H. Okamoto
[1997Oka] updated the Al-Ru phase diagram of [Massalski2]. Subsequently, [2004Oka] showed the Al-Ru diagram thermodynamically assessed by [2003Pri]. Part of the [2003Pri] diagram is shown with dashed line in Fig. 1. Since then [2003Mi] reinvestigated the Al-rich part of the Al-Ru phase diagram by scanning and transmission electron microscopy, powder x-ray diffraction, and differential thermal analysis. The results are shown with solid lines in Fig. 1. A new phase Al5Ru2 was discovered. Due to the significant difference between [2003Mi] and [2003Pri], as shown in Fig. 1, a further thermodynamic assessment may be needed. Table 1 shows Al-Ru crystal structure data given in Table 1 Phase
[Massalski2] with additional information on Al5Ru2 reported by [2003Mi]. References 1997Oka: H. Okamoto, Al-Ru (Aluminum-Ruthenium), J. Phase Equilibria, 1997, 18(1), p 105 2003Mi: S. Mi, S. Balanetskyy, and B. Grushko, A Study of the Al-Rich Part of the Al-Ru Alloys System, Intermetallics, 2003, 11(7), p 643-649 2003Pri: S.N. Prins, L.A. Cornish, W.E. Stumpf, and B. Sundman, Thermodynamic Assessment of the Al-Ru System, Calphad, 2003, 27(1), p 79-90 2004Oka: H. Okamoto, Al-Ru (Aluminum-Ruthenium), J. Phase Equilibria Diffusion, 2004, 25(2), p 196
Al-Ru crystal structure data Composition(a), at.% Ru
Pearson symbol
Space group
Strukturbericht designation
Prototype
(Al) Al6Ru Al13Ru4 Al5Ru2 Al2Ru
0 14.3 23.5 28.6 33.3
Al3Ru2
40
cF4 oC28 mC102 oC16 tI6 m** oF24 hP5 tI10 cP2 hP2
Fm3¯m Cmcm C2/m Cmcm I4/mmm … Fddd P3¯m1 I4/mmm Pm3¯m P63/mmc
A1 … … … C11a … C54 D513 … B2 A3
Cu … … … CaC2 … TiS2 Al3Ni2 … CsCl Mg
AlRu (Ru)
50(a) 100
(a) Stoichiometric composition
Fig. 1 Al-Ru phase diagram
426
Journal of Phase Equilibria and Diffusion Vol. 27 No. 4 2006
Data Loading...
