| Autor: |
Pošarac Milica, Devečerski A., Volkov-Husović T., Matović B., Minić D.M. |
| Jazyk: |
angličtina |
| Rok vydání: |
2009 |
| Předmět: |
|
| Zdroj: |
Science of Sintering, Vol 41, Iss 1, Pp 75-81 (2009) |
| Druh dokumentu: |
article |
| ISSN: |
0350-820X |
| DOI: |
10.2298/SOS0901075P |
| Popis: |
The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4) obtained by the modified glycine nitrate procedure (MGNP). Sintered products were characterized in terms of phase analysis, densities, thermal shock, monitoring the damaged surface area in the refractory specimen during thermal shock and ultrasonic determination of the Dynamic Young modulus of elasticity. It was found that a new phase between yttria and alumina is formed, which improved thermal shock properties of the spinel refractories. Also densification of samples is enhanced by yttria addition. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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