ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The crystallization of gallium lanthanum sulfide (GLS) glasses of composition (100 - x)Ga2S3xLa2S3 (mol%) has been analyzed using X-ray diffraction, and optical and transmission electron microscopy. The major crystalline phase, X, was found to be different from the La3.33Ga6S14 phase reported previously in similar compositions. X was the primary phase present and was observed in all samples, forming on quenching as well as on subsequent heat treatment. The phase occurred as spherulites composed of lamellae, approximately 1 µm wide and all of the same orientation. A small quantity of crystals of Ga2S3 (20 nm) were observed to grow discontinuously between the lamellae. Electron diffraction and energy dispersive X-ray analysis suggested that phase X was monoclinic and had approximately a 2:1 Ga2S3:La2S3 ratio.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.1998.tb02566.x
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