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Two-step Sintering Process for Lutetium Oxide Transparent Ceramics

Published online by Cambridge University Press:  26 January 2011

Xiaomei Guo ,
Kewen K. Li ,
Yanyun Wang ,
Yingyin K. Zou  and
Hua Jiang
Xiaomei Guo*
Affiliation:
Boston Applied Technologies Inc., Woburn, MA
Kewen K. Li
Affiliation:
Boston Applied Technologies Inc., Woburn, MA
Yanyun Wang
Affiliation:
Boston Applied Technologies Inc., Woburn, MA
Yingyin K. Zou
Affiliation:
Boston Applied Technologies Inc., Woburn, MA
Hua Jiang
Affiliation:
Boston Applied Technologies Inc., Woburn, MA
*
*Corresponding Author. Email: [email protected]
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Abstract

During a two-step sintering practice, important factors such as final grain sizes and residual pore status can be controlled through adjusting the first and second step sintering temperatures and durations. Moreover, the sintering temperatures (both the first and the second step) can be several hundred degrees lower than those in a traditional sintering process to obtain fully dense ceramics. Therefore, it is a potentially cost-effective preparation procedure for ceramics with fine grains. In this work, we successfully demonstrated the synthesis of aggregate-free sesquioxide nanometer-sized powders with a narrow size distribution through a modified chemical co-precipitation process. Subsequently, ytterbium-doped Lu2O3 ceramics of near full density were obtained through a two-step sintering process.

Keywords

ceramicchemical synthesisdensification
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1309: Symposium EE – Solid-State Chemistry of Inorganic Materials VIII , 2011 , mrsf10-1309-ee06-21
Copyright
Copyright © Materials Research Society 2011

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References

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