Nitride glasses obtained by high-pressure synthesis

T. Grande, J. R. Holloway, P. F. McMillan, Charles Angell

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The incorporation of nitrogen in oxide glasses can lead to improved physical properties such as hardness and refractive index; one might accordingly expect to see a further improvement in glasses containing nitrogen as the only anion. But while there are now many examples of non-oxide glasses in the halide and chalcogenide families, the formation of pure nitride glasses has not hitherto been demonstrated. Here we report the formation of glasses in the system Li3N-Ca3N2-P3N5, by the rapid quenching of fused mixtures of the nitrides at high pressures. The use of high-pressure conditions prevents thermal decomposition of the nitride mixtures to gaseous nitrogen. The new nitride glasses are stable in air, have remarkably high refractive indices (1.97-2.0), hardness exceeding that of silica glass, and high glass transition temperatures (T(g) > 700°C).

Original languageEnglish (US)
Pages (from-to)43-45
Number of pages3
JournalNature
Volume369
Issue number6475
DOIs
StatePublished - May 5 1994

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Nitrides
Glass
Nitrogen
Refractive index
Hardness
Rapid quenching
Fused silica
Oxides
Anions
Pyrolysis
Physical properties
Air

ASJC Scopus subject areas

  • General

Cite this

Grande, T., Holloway, J. R., McMillan, P. F., & Angell, C. (1994). Nitride glasses obtained by high-pressure synthesis. Nature, 369(6475), 43-45. https://doi.org/10.1038/369043a0

Nitride glasses obtained by high-pressure synthesis. / Grande, T.; Holloway, J. R.; McMillan, P. F.; Angell, Charles.

In: Nature, Vol. 369, No. 6475, 05.05.1994, p. 43-45.

Research output: Contribution to journalArticle

Grande, T, Holloway, JR, McMillan, PF & Angell, C 1994, 'Nitride glasses obtained by high-pressure synthesis', Nature, vol. 369, no. 6475, pp. 43-45. https://doi.org/10.1038/369043a0
Grande T, Holloway JR, McMillan PF, Angell C. Nitride glasses obtained by high-pressure synthesis. Nature. 1994 May 5;369(6475):43-45. https://doi.org/10.1038/369043a0
Grande, T. ; Holloway, J. R. ; McMillan, P. F. ; Angell, Charles. / Nitride glasses obtained by high-pressure synthesis. In: Nature. 1994 ; Vol. 369, No. 6475. pp. 43-45.
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