Applications Current and Potential

We are grateful to N. Veerabadran and S. Balkundi who are working on the halloysite project at Louisiana Tech University. National Science Foundation NIRT-0210298 grant support is acknowledged. Any opinions and conclusions expressed are these of the authors and do not necessarily reflect the view of the NSF. 

1 Bates, T., Hilderbrand, F. and Swineford, A. (1950) Morphology and structure of endellite and halloysite. American Mineralogists, 35, 463—485. 

2 Joussein, E., Pitit, S., Churchman, J., Theng, B., Righi, D. and Delvaux, B. (2005) Halloysite day minerals — A review. Clay Minerals, 40, 383—426. 

3 Baral, S., Brandshow, S. and Gaber, B. (1993) Electrolysis metallization of halloysite, a hollow cylindrical 1 1 alumosilicate of submicron diameter. Chemistry of Materials, 5, 1227-1233. 

4 Tari, G., Bobos, I., Gomes, C. and Ferreira, J. (1999) Modification of surface charge properties during kaolinate to halloysite-7A transformation. Journal of Colloid and Interface Science, 210, 360. 

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Having looked into and critically analyzed some of the processing issues, property requirements and more recently developed advanced composites based on the ultra-high temperature ceramics, in this section we summarize the various applications (current and potential) of these material classes. As has been emphasized in the preceding sections, UHTCs are nsed for applications that demand withstanding temperatures above 2000°C, along with harsh atmospheric conditions. Such conditions are typically enconntered dnring the re-entry of space shuttles into the atmosphere. Hence, a lot of research on UHTCs has been conducted with such applications in mind. 

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