Similar behaviors of sulfide and selenide-based chalcogenide glasses to form glass ceramics

2010 ◽  
Author(s):  
Laurent Calvez ◽  
Changgui Lin ◽  
Mathieu Rozé ◽  
Yannick Ledemi ◽  
Erwan Guillevic ◽  
...  
Keyword(s):  
Chalcogenide Glasses ◽  
Glass Ceramics

Mössbauer investigation of tin-containing chalcogenide glasses and glass-ceramics

1981 ◽  
Vol 45 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Ji-Jian Cheng ◽  
J. Zarzycki ◽  
J.C. Jumas ◽  
M. Ribes
Keyword(s):  
Chalcogenide Glasses ◽  
Glass Ceramics

scholarly journals An innovative approach to develop highly performant chalcogenide glasses and glass-ceramics transparent in the infrared range

2011 ◽  
Vol 19 (23) ◽  
pp. 23513 ◽  
Author(s):  
Mathieu Hubert ◽  
Gaëlle Delaizir ◽  
Judith Monnier ◽  
Claude Godart ◽  
Hong-Li Ma ◽  
...  
Keyword(s):  
Chalcogenide Glasses ◽  
Glass Ceramics ◽  
Innovative Approach ◽  
Infrared Range

The Microstructure of Steatite (Protoenstatite)

1985 ◽  
Vol 43 ◽  
pp. 236-237
Author(s):  
W. E. Lee ◽  
A. H. Heuer
Keyword(s):  
High Frequency ◽  
Glass Ceramics ◽  
Magnesium Silicate ◽  
Beam Current ◽  
Glassy Matrix ◽  
Angle Of Incidence ◽  
X Ray ◽  
Mechanical And Electrical Properties ◽  
Argon Ions ◽  
High Temperature Polymorph

IntroductionTraditional steatite ceramics, made by firing (vitrifying) hydrous magnesium silicate, have long been used as insulators for high frequency applications due to their excellent mechanical and electrical properties. Early x-ray and optical analysis of steatites showed that they were composed largely of protoenstatite (MgSiO3) in a glassy matrix. Recent studies of enstatite-containing glass ceramics have revived interest in the polymorphism of enstatite. Three polymorphs exist, two with orthorhombic and one with monoclinic symmetry (ortho, proto and clino enstatite, respectively). Steatite ceramics are of particular interest a they contain the normally unstable high-temperature polymorph, protoenstatite.Experimental3mm diameter discs cut from steatite rods (∼10” long and 0.5” dia.) were ground, polished, dimpled, and ion-thinned to electron transparency using 6KV Argon ions at a beam current of 1 x 10-3 A and a 12° angle of incidence. The discs were coated with carbon prior to TEM examination to minimize charging effects.

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