Abstract
The formation of α′-sialon using Li as a modifying cation was investigated. The effects of the Li content, firing temperatures and Si/Al ratios on α′-yield were studied. The results indicated that at lower sintering temperatures the stabilization of α′-sialons was obtained but the high weight losses of Li at higher temperatures limited the stabilization. Increased `Al' content in the compositions resulted in an increase in the stability of Li-α′-sialon at higher temperatures, by the formation of a liquid phase which retains Li in the system.
| Original language | English |
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| Title of host publication | Key Engineering Materials |
| Publisher | Publ by Trans Tech Publ |
| Pages | 387-392 |
| Number of pages | 6 |
| Volume | 89-91 |
| ISBN (Print) | 0878496688, 9780878496686 |
| Publication status | Published - 1994 |
| Event | Proceedings of the International Conference on Silicon Nitride-Based Ceramics - Stuttgart, Ger Duration: 4 Oct 1993 → 6 Oct 1993 |
Conference
| Conference | Proceedings of the International Conference on Silicon Nitride-Based Ceramics |
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| City | Stuttgart, Ger |
| Period | 4/10/93 → 6/10/93 |
