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Liquid immersion technique coupled with infrared microscopy for direct observation of internal structure of ceramic powder compact, with alumina as an example

Published online by Cambridge University Press:  31 January 2011

Keizo Uematsu  and
Midori Saito
Keizo Uematsu
Affiliation:
Department of Chemistry, Nagaoka University of Technology, 1603–1 Kamitomioka, Nagaoka, Niigata, 940–2188 Japan
Midori Saito
Affiliation:
Department of Chemistry, Nagaoka University of Technology, 1603–1 Kamitomioka, Nagaoka, Niigata, 940–2188 Japan
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Abstract

Infrared microscopy was applied to observe the internal structure of alumina powder compact, which was made transparent with an immersion liquid. It provided clear images of nonuniformity in the structure for a specimen as thick as 1 mm. Two types of nonuniformity found in this paper are the large pores made from the pores in powder granules and the low-density region forming network structure, which was formed by the presence of a binder. The minimum size of nonuniformity detected in a structure is under 20 μm.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 12 , December 1999 , pp. 4463 - 4465
Copyright
Copyright © Materials Research Society 1999

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References

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