Phase Separation in Melts of the ZrO2–Al2O3 System
2008 (English)In: Glass Physics and Chemistry, ISSN 1087-6596, E-ISSN 1608-313X, Vol. 34, no 5, 623-633 p.Article in journal (Refereed) Published
The morphology of the quenched and slowly crystallized samples in the ZrO2–Al2O3system isinvestigated in the composition range 25–70 wt % ZrO2. It is revealed that, irrespective of the cooling rate, thesamples contain large baddeleyite (or corundum) crystals, eutectic mixtures, and characteristic regions of intergrown elongated baddeleyite and corundum grains with micron sizes. These regions have the same phase composition at any initial ratio between zirconium and aluminum oxides and at any cooling rates of the melt. Ahypothesis is put forward that these regions are products of the decomposition of ZrO2· 2Al2O3associates.
Place, publisher, year, edition, pages
2008. Vol. 34, no 5, 623-633 p.
IdentifiersURN: urn:nbn:se:kth:diva-63069DOI: 10.1134/S108765960805014OAI: oai:DiVA.org:kth-63069DiVA: diva2:481588
QC 201201242012-01-212012-01-212012-01-24Bibliographically approved