Rheological Properties and Ceramization Mechanism of ZrO₂ Preceramic Solution

Abstract:

The zirconia fiber reinforced ZrO₂ porous composites have been fabricated by precursor infiltration and pyrolysis techniques. The rheological properties and ceramization mechanism of ZrO₂ preceramic solution were observed. The results showed that with the increase of infiltration/ pyrolysis cycles the density of as-prepared composites increased. But the compression strength of composite firstly increased and then decreased, which indicates mechanical properties of composites relevant with density, fiber/matrix interface and porous structure. SEM observation revealed fiber pull-out within samples through 17 infiltration/pyrolysis cycles, which would make contributions to the enhanced mechanical properties of composites.

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 169-173
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.169
• Online since: January 2017
• Authors: Jian Ping Ai, Tao Zhou, Xi Ping Wang, Shan Shan Luo, Wen Kui Li*
• Keywords: Ceramization, Microstructure, Rheological Properties, ZrO₂-Based Composites

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