Abstract
Yttria‐doped tetragonal ZrO2 polycrystal (Y‐TZP)lmullite composites were sintered at 1450° to 1500°C in air to disperse rodlike mullite grains at the grain boundary of Y‐TZP and the mechanical and thermal properties were investigated. The aspect ratios of mullite grain were >2. High fracture strength of 1000 MPa and fracture toughness of 12 MPa·m1/2 were obtained by dispersing <20 vol% of mullite into Y‐TZP. The thermal expansion coefficient of Y‐TZP/mullite composites decreased with increasing mullite content. The thermal shock resistance of Y‐TZP was greatly improved by dispersion of rodlike mullite grains.
| Original language | English |
|---|---|
| Pages (from-to) | C‐342-C‐346 |
| Journal | Journal of the American Ceramic Society |
| Volume | 70 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1987 Nov |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
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Ishitsuka, M., Sato, T., Endo, T., & Shimada, M. (1987). Sintering and Mechanical Properties of Yttria‐Doped Tetragonal ZrO2 Polycrystal/Mullite Composites. Journal of the American Ceramic Society, 70(11), C‐342-C‐346. https://doi.org/10.1111/j.1151-2916.1987.tb05653.x