ISSN:
1573-4846
Keywords:
diffusion-limited crystallization
;
phase diagrams
;
metastability
;
ZrO2-metal oxide
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Chemical routes to synthesize inorganics can start with solutions where multiple elements remain well mixed during liquid evaporation, precursor decomposition and crystallization. Because crystallization generally occurs at temperatures where diffusion is very limited, a single phase can crystallize with a greatly extended solid-solution that does not achieve its equilibrium phase assemblage until much higher temperatures where diffusion is no longer constrained. Partitioning at these higher temperatures can lead to unique microstructures such as the nano-composite illustrated here for a metastable Zr(1−x)Al x O2−x/2 (x≤0.57) phase that partitions into a composite containing t-ZrO2 grains and α-Al2O3 plates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00486263
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