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Publikācija: Characterisation of Mullite-Zirconia Ceramics Produced from Different Synthesised Powders
| Publikācijas veids | Citas publikācijas konferenču (arī vietējo) ziņojumu izdevumos |
|---|---|
| Pamatdarbībai piesaistītais finansējums | Nav zināms |
| Aizstāvēšana: | , |
| Publikācijas valoda | English (en) |
| Nosaukums oriģinālvalodā | Characterisation of Mullite-Zirconia Ceramics Produced from Different Synthesised Powders |
| Pētniecības nozare | 2. Inženierzinātnes un tehnoloģijas |
| Pētniecības apakšnozare | 2.5. Materiālzinātne |
| Autori |
Gaida Maruta Sedmale
Ingunda Šperberga Jānis Grabis Aleksejs Hmeļovs Lauma Lindiņa |
| Atslēgas vārdi | Mullite, zirconia ceramics ,starting powders, properties |
| Anotācija | Mullite - zirconia ceramics was investigated using as starting components differently prepared powders. For synthesis of powders conventional and hydrothermal methods were applied. Characteristics of synthesised powders and their influence on sintering rate, phase composition and properties of mullite-zirconia ceramics were studied and compared. Compositions of Al2O3, SiO2•nH2O, ZrO2 (mon.), Y2O3 obtained by conventional method and of Al(NO)3.9H2O, SiO2–aeroc, ZrO(NO3).2H2O, Y(NO3)3 .6H2O obtained by hydrothermal preparing starting powders were used to satisfy the mullite – ZrO2 (tetr.) composition. The pressed samples were sintered at temperatures from 1100 to 15000C. It is shown that densification is greatly affected by milling time of conventional, as well as of hydrothermal preparing method. XRD and SEM examinations showed that there is a difference in the temperature of mullite - ZrO2 (tetr.) phase formation, as well as in morphology and grain size of sintered at 13000C samples. |
| Atsauce | Sedmale, G., Šperberga, I., Grabis, J., Hmeļovs, A., Lindiņa, L. Characterisation of Mullite-Zirconia Ceramics Produced from Different Synthesised Powders. No: Global Roadmap for Ceramics: Proceedings of the 2nd International Congress on Ceramics, Itālija, Verona, 29. Jūn-4. Jūl., 2008. Faenza: ISTEC-CNR, 2008, 201.-207.lpp. ISBN 9788880800842. |
| ID | 5463 |