Nanostructured Bulk Ceramics (Part II. Superplasticity and High Strain Rate Superplasticity) |
Young-Hwan Han, Amiya K. Mukherjee1 |
National Core Research Center for Hybrid Materials Solution, Pusan National University 1Department of Chemical Engineering and Materials Science, University of California at Davis |
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ABSTRACT |
In Part II, the paper will describe a three-phase alumina-based nanoceramic composite demonstrating superplasticity at a surprisingly lower temperature and higher strain rate. One important factor in the processing of these nanocomposites was the use of the electrical field assisted sintering method, SPS. These improvements in mechanical properties were briefly discussed in the context of the results from the microstructural investigations. SPS forming approach provides a new route for low temperature and high-strain-rate superplasticity for nanostructured materials and should impact and interest a broad range of scientists in materials research and superplastic forming technology. |
Key words:
Alumina-based, Superplasticity, HSRS, SPS, Nanoconcomposite |
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