Microstructure Evolution During the Sintering of Freeze-Cast Alumina
Daniel D. Athayde,
Luiz F.S. Lima,
Peter G. Weidler
et al.
Abstract:Reports on freeze-cast ceramic materials frequently focus on the study of the organized macroporosity and the properties of the materials. This study aims to describe the microstructure evolution of freeze-cast alumina during the sintering process, analyzing grain growth, densification, pore elimination and crystal structure at different sintering temperatures (1300-1500 °C). Aqueous suspensions with 20 vol% alumina were freeze-cast in liquid N 2 and sintered. The microstructure was analyzed by stereological a… Show more
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