TY - JOUR
T1 - Structural and phase equilibria studies in the system Pt-Fe-Cu and the occurrence of tulameenite (Pt2FeCu).
AU - Shahmiri, M.
AU - Murphy, S.
AU - Vaughan, D. J.
PY - 1985/7/5
Y1 - 1985/7/5
N2 - The crystal structure and compositional limits of tulameenite, formed either by quenching from above the critical T of 1178oC or by slow cooling, have been studied using XRD, TEM, DTA and microprobe techniques. The structure has Pt in the (000) and (1/21/20) lattice sites and Cu or Fe atoms randomly occupying the (1/201/2) and (01/21/2) sites. The resulting face-centred tetragonal structure undergoes a disordering transformation at the critical T to a postulated non-quenchable face-centred cubic structure. At 1000oC there is an extensive single-phase region of solid solution around Pt2FeCu, extending to the composition PtFe, but at 600oC the Pt2FeCu composition lies outside the reduced area of solid solution in a two-phase field.-R.A.H. Dept. of Metallurgy & Materials Engineering, Univ. of Aston, Birmingham B4 7ET, UK.
AB - The crystal structure and compositional limits of tulameenite, formed either by quenching from above the critical T of 1178oC or by slow cooling, have been studied using XRD, TEM, DTA and microprobe techniques. The structure has Pt in the (000) and (1/21/20) lattice sites and Cu or Fe atoms randomly occupying the (1/201/2) and (01/21/2) sites. The resulting face-centred tetragonal structure undergoes a disordering transformation at the critical T to a postulated non-quenchable face-centred cubic structure. At 1000oC there is an extensive single-phase region of solid solution around Pt2FeCu, extending to the composition PtFe, but at 600oC the Pt2FeCu composition lies outside the reduced area of solid solution in a two-phase field.-R.A.H. Dept. of Metallurgy & Materials Engineering, Univ. of Aston, Birmingham B4 7ET, UK.
KW - Tulameeite
KW - Syatem Pt-Fe-Cu
KW - Crystal structure
UR - http://www.scopus.com/inward/record.url?scp=0022007936&partnerID=8YFLogxK
U2 - 10.1180/minmag.1985.049.353.08
DO - 10.1180/minmag.1985.049.353.08
M3 - Article
AN - SCOPUS:0022007936
SN - 0026-461X
VL - 49
SP - 547
EP - 554
JO - Mineralogical Magazine
JF - Mineralogical Magazine
IS - 353
ER -