Oxynitride glass production procedure

Patent · Tue Apr 09 00:00:00 EDT 1991

OSTI ID:5928877

Weidner, J R; Schuetz, S T; O'Brien, M H

This patent describes the invention of a process for the preparation of high quality oxynitride glasses without resorting to high pressures. Nitrogen-containing compounds such as Si{sub 3}N{sub 4} are first encapsulated in a low melting temperature glass. Particles of the encapsulated nitrogen-containing compound are mixed with other oxide glass-formers and melted in an atmosphere of flowing nitrogen and in the presence of buffering gas to form the oxynitride glass. Glasses containing up to 15 at % nitrogen have been prepared by this method.

• Assignee: US DOE, Washington, DC (USA)
• Patent Number(s): US 5006142; A
• Application Number: PPN: US 7-500352
• OSTI ID: 5928877
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CHALCOGENIDES
CHEMICAL PREPARATION
ELEMENTS
EXPANSION
FLUID FLOW
GAS FLOW
GLASS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN
NITROGEN COMPOUNDS
NONMETALS
OPTIMIZATION
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PNICTIDES
SILICON COMPOUNDS
SILICON NITRIDES
SYNTHESIS
THERMAL EXPANSION