Abstract
Mechanical and physical properties of cordierite materials produced from natural raw materials and synthetic powders were investigated. Kaolinite, sinter magnesite, talc and pyrophyllite as natural raw materials and Al 2O3, MgO and SiO2 as synthetic powders were used to obtain the synthetic cordierite. 6 different mixtures were prepared for the selected three target compositions in the Al2O 3-MgO-SiO2 quaternary diagram. Each mixture was milled in a planetary ball mill followed by pressing in an unaxial press and sintering in an electrical furnace at 1350°C for 1, 3 and 5 hours. Sintered cordierite bodies were characterized using X-ray diffraction(XRD), Archimedes method and three point bending strength tests. It was shown that the cordierite ceramics produced from natural raw materials had denser structure, finer porosity, lower water absorption and better bending strength than those produced from synthetic powders.
| Original language | English |
|---|---|
| Pages (from-to) | 929-932 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 264-268 |
| Issue number | II |
| DOIs | |
| Publication status | Published - 2004 |
| Event | Proceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey Duration: 29 Jun 2003 → 3 Jul 2003 |
Keywords
- Cordierite ceramics
- Physical and mechanical properties