Hostname: page-component-848d4c4894-nr4z6 Total loading time: 0 Render date: 2024-05-04T21:49:20.760Z Has data issue: false hasContentIssue false
  • English
  • Français

Containerless Solidification Studies Of The 1/1 Phase IN TI-(MN, CRFE)-SI-O Alloys

Published online by Cambridge University Press:  10 February 2011

T. K Croat ,
K. F. Kelton ,
D. Holland-Moritz ,
T. J. Rathz  and
M. B. Robinson
T. K Croat
Affiliation:
Physics Department, Washington University, St. Louis, MO 63130
K. F. Kelton
Affiliation:
Physics Department, Washington University, St. Louis, MO 63130
D. Holland-Moritz
Affiliation:
Institut fur Raumsimulation, DLR, D-51170, Koln, Germany
T. J. Rathz
Affiliation:
University of Alabama, Huntsville, AL
M. B. Robinson
Affiliation:
NASA/ George C. Marshall Space Flight Center, Huntsville, AL 35812
Get access

Abstract

The nucleation behavior of the 1/1 quasicrystal approximant phase was investigated in Ti-TMSi- O (TM=Mn, Cr, Fe) alloys made near the stoichiometric composition. Containerless solidification studies were performed using electromagnetic (rf) levitation and drop-tube techniques. The solidification microstructures indicate that α-Ti nucleated first in Ti-Cr-Si-O and β-Ti in Ti-Mn-Si-O alloys; the 1/1 phase nucleated and grew on these titanium oxide dendrites. In Ti-Fe-Si-O alloys, the 1/1 phase nucleated and grew directly from the liquid, allowing information on the nucleation rates to be obtained from undercooling data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 553: Symposium LL – Quasicrystals , 1998 , 43
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Libbert, J.L. and Kelton, K.F., Phil.Mag.Lett., 71, 213 (1995).Google Scholar
2. Holland–Moritz, D., Herlach, D.M., and Urban, K., Acta Met. 46 (5), 601(1998).Google Scholar
3. Rathz, T.J., Robinson, M.B., Hofineister, W.H., and Bayuzick, R.J., Rev. Sci. Instrum. 61 3846(1990 Google Scholar
4. Libbert, J.L., Kim, J.Y., and Kelton, K.F., Phil.Mag.Ain ss)Google Scholar