Published 2009
| Version v1
Publication
About the Al–Cu–Si isothermal section at 500°C and the stability of the epsilon-Cu15Si4 phase
Creators
Contributors
Description
a b s t r a c t
The 500 C isothermal section of the Al–Cu–Si system has been determined in the whole composition
range, with special attention to the Cu-rich corner. A number of Cu–Si binary alloys equilibrated at 500–
780 C have also been investigated.
A ternary point compound at 1.5 at% Al and 21 at% Si has been identified. It has the same crystal structure
of the binary phase previously reported as epsilon-Cu15Si4. This phase however is not stable in the binary
system, at least between 500 and 780 C, and it is stabilised by small amounts of impurities. The gamma1-
(Al,Cu) phase dissolves about 11.5 at% Si and ternary solubility extends in the direction of a constant
valence electron concentration. The binary k-(Cu,Si) phase is stable in a ternary solubility range close to
the (Cu) terminal solid solution.
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/247324
- URN
- urn:oai:iris.unige.it:11567/247324