Thermal stability of RE5(SixGe1-x)(3) plates in RE5(SixGe1-x)(4) alloys, where RE = Gd and Ho
|Title||Thermal stability of RE5(SixGe1-x)(3) plates in RE5(SixGe1-x)(4) alloys, where RE = Gd and Ho|
|Publication Type||Journal Article|
|Year of Publication||2010|
|Authors||Cao Q, Chumbley LS, Qian Z|
|Keywords||electron microscopy, features, gd-5(sixge1-x)(4), gd5si2ge2, heat treatment, identification, rapid solidification, rare-earth intermetallics, scanning, transition, transmission|
The stability of RE5(SixGe1-x)(3) plates was studied through electron microscopy examination of as-cast and annealed Gd5Ge4 single crystal samples. Thermal annealing of samples at 1200 degrees C showed instability of the plates and a sluggish dissolution into the matrix. Scanning electron microscopy of Ho-5(Si0.8Ge0.2)(4) samples that had undergone laser surface melting indicated that the resulting rapid solidification of the melt pool suppressed precipitation of the characteristic 5:3 thin plates. (C) 2010 Elsevier Ltd. All rights reserved.
|URL||<Go to ISI>://000277494400041|