Silver - Cerium - Lead

Riccardo Ferro, Adriana Saccone, Stefano Delfino

Introduction

The synthesis of an intermetallic compound AgCePb is reported by Mazzone et al. [83Maz]. The components used for sample preparation were Ce of 99.9 mass% and Ag and Pb of 99.99 mass% purity. The samples were induction melted under Ar and annealed at 500°C for 1 week. The samples obtained as easily oxidizable, well-melted, brittle ingots were examined by optical and electron microscopy, X-ray powder diffraction and energy dispersive EPMA. This study was carried out in the course of an investigation of several AgPbRE (RE = rare earth) compounds. All the alloys of 1:1:1 nominal composition had an almost homogeneous appearance and analogous properties. For instance in the case of the similar, isostructural AgLaPb alloy, (especially studied) the most abundant phase in the sample resulted in the following composition: 32.5-33...