Skip to Main content Skip to Navigation
Journal articles

Synthesis of Germanium-Gallium-Tellurium (Ge-Ga-Te) Ceramics by Ball-Milling and Sintering

Abstract : In this paper, we present the preparation of a bulk material with a composition of 80GeTe2-20Ga2Te3 by combining mechanosynthesis and sintering. This composition cannot be prepared by conventional melt/quenching technique. The progressive evolution of the powder during ball milling is followed by XRD and DSC analysis. The final powder obtained is highly crystalline but a glass transition temperature is observed, indicating the presence of some amorphous phase remaining, allowing for its efficient sintering. By hot pressing, a dense bulk material with a fine microstructure and a high electrical conductivity is obtained. The synthesis method described represents a simple and cost effective way to produce tellurium-based materials of desired dimension with potential applications for optical storage or thermoelectric devices.
Document type :
Journal articles
Complete list of metadatas

Cited literature [31 references]  Display  Hide  Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-00858287
Contributor : Laurent Calvez <>
Submitted on : Friday, September 6, 2013 - 3:15:55 PM
Last modification on : Thursday, March 5, 2020 - 2:05:39 PM
Long-term archiving on: : Saturday, December 7, 2013 - 4:15:26 AM

Files

Synthesis_of_germanium-gallium...
Files produced by the author(s)

Identifiers

Citation

Mathieu Hubert, Elena Petracovschi, Xianghua Zhang, Laurent Calvez. Synthesis of Germanium-Gallium-Tellurium (Ge-Ga-Te) Ceramics by Ball-Milling and Sintering. Journal of the American Ceramic Society, Wiley, 2013, 96 (5), pp.1444-1449. ⟨10.1111/jace.12299⟩. ⟨hal-00858287⟩

Share

Metrics

Record views

229

Files downloads

755