Powder Diffraction

New Diffraction Data

X-ray powder diffraction data for high-temperature Al4Re(Ni)

B. Grushkoa1 c1

a1 Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany

Abstract

A monoclinic phase isostructural to Al4W was revealed in Al–Ni–Re close to the Al–Re terminal. It is assumed to be a ternary extension of the high-temperature Al4Re phase usually transforming in binary alloys even by sharp quenching from the existence temperatures. The powder X-ray diffraction pattern of this phase of the Al77Ni2.5Re20.5 composition was indexed for the Cm space group with a=5.1538(12) Å, b=17.410(5) Å, c=5.1546(15) Å, and β=100.548(16)°.

(Received November 27 2008)

(Accepted January 12 2009)

Key Words:

  • Al–Re–(Ni);
  • powder X-ray diffraction

Correspondence:

c1 Electronic mail: b.grushko@fz-juelich.de