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Formation of patterned microstructures of polycrystalline ceramics from precursor polymers using micromolding in capillaries

Published online by Cambridge University Press:  31 January 2011

Weng Sing Beh ,
Younan Xia  and
Dong Qin
Weng Sing Beh
Affiliation:
Department of Chemistry, University of Washington, Seattle, Washington 98195
Younan Xia
Affiliation:
Department of Chemistry, University of Washington, Seattle, Washington 98195
Dong Qin
Affiliation:
Center for Nanotechnology, University of Washington, Seattle, Washington 98195
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Abstract

Micromolding in capillaries has been used to generate patterned microstructures of ZrO2 or SnO2 from its polymeric precursor. After patterning, the amorphous precursor was converted into the desired polycrystalline ceramic material by calcination in air at 460 °C. The final phase for each ceramic material was determined by powder x-ray diffraction. The shrinkage of the precursor material during pyrolysis was investigated by scanning electron microscopy and atomic force microscopy. These ceramic microstructures could be either supported on solid substrates or released as freestanding fibers and membranes. Their lateral dimensions could be as small as approximately 500 nm.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 10 , October 1999 , pp. 3995 - 4003
Copyright
Copyright © Materials Research Society 1999

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