Manufacture and Compositional Analysis of Silicon Nitride Composites with Different Carbon Additions
| Autor: | Csaba Balazsi, Ferenc Weber, Zsolt Kasztovszky |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Communications, Vol 6, Iss 1, Pp 5-9 (2004) |
| Druh dokumentu: | article |
| ISSN: | 1335-4205 2585-7878 |
| DOI: | 10.26552/com.C.2004.1.5-9 |
| Popis: | Carbon black and graphite nano/micrograins and sintering additives (Al2O3 and Y2O3) were added to silicon nitride starting powder. These mixtures were mechanochemically activated several hours in a planetary type alumina ball-mill in order to achieve a homogenous mass. As an alternative to nano- and micrograins, carbon fibres were added to carbon free silicon nitride batches. After dry pressing of rectangular bars sinter-HIP was applied. Structural, morphological and compositional analyses were performed on as-prepared samples. Bending strength and elastic modulus were found to be influenced by amount of carbon black and graphite introduced in silicon nitride matrix. |
| Databáze: | Directory of Open Access Journals |
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