@inproceedings{25a3c646d7bc429aae16f30dabd4914b,
title = "The intergranular oxynitride microstructure in silicon nitride based ceramics",
abstract = "The intergranular microstructure in a liquid phase sintered silicon nitride based ceramic may be viewed as an oxynitride glass-ceramic. This work is concerned with the incorporation of yttrium B-phase, which is a five-component phase, into the intergranular regions of silicon nitride ceramics. The silicon nitride materials were fabricated with the addition of a powdered B-phase parent glass with composition (e/o) 35Y:45Si:20Al:83O:17N, or the addition of a mixture of Y2O3, SiO2 and Al2O 3 with cation composition (e/o) 35Y:45Si:20Al. The starting powder mixtures contained 10 wt% of sintering additives. Sintering for 2 h at 1800°C was followed by a two-step post-densification heat treatment in order to promote nucleation and growth of yttrium B-phase. Detailed imaging and elemental analysis of the intergranular regions was carried out by EDX in a FEGTEM.",
keywords = "B-phase, EDX, Intergranular microstructure, TEM",
author = "Falk, {L. K.L.} and N. Schneider and Y. Menke and S. Hampshire",
year = "2007",
doi = "10.4028/0-87849-439-1.113",
language = "English",
isbn = "0878494391",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "113--118",
booktitle = "Nitrides and Oxynitrides III - Proceedings of the 5th International Symposium on Nitrides",
note = "5th International Symposium on Nitrides ; Conference date: 03-04-2006 Through 05-04-2006",
}