New gelling systems to fabricate complex-shaped transparent ceramics

Yan Yang; Yiquan Wu

doi:10.1117/12.2026953

4 June 2013 New gelling systems to fabricate complex-shaped transparent ceramics

Yan Yang, Yiquan Wu

Proceedings Volume 8708, Window and Dome Technologies and Materials XIII; 87080D (2013) https://doi.org/10.1117/12.2026953
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

The aim of this work was to prepare transparent ceramics with large size and complex-shapes by a new water-soluble gelling agent poly(isobutylene-alt-maleic anhydride). Alumina was used as an example of the application of the new gelling system. A stable suspension with 38vol% was prepared by ball milling. Trapped bubbles were removed before casting to obtain homogenous green bodies. The microstructure and particle distribution of alumina raw material were tested. The thermal behavior of the alumina green body was investigated, which exhibited low weight loss when compared with other gelling processes. The influence of solid loading and gelling agent addition were studied on the basis of rheological behavior of the suspension. The microstructures of alumina powders, green bodies before and after de-bindering process, were compared to understand the gelling condition between alumina particles and gelling agent.

Citation Download Citation

Yan Yang and Yiquan Wu "New gelling systems to fabricate complex-shaped transparent ceramics", Proc. SPIE 8708, Window and Dome Technologies and Materials XIII, 87080D (4 June 2013); https://doi.org/10.1117/12.2026953

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