| Autor: |
Deng, Xiangong, Wu, Yongwan, Wei, Tingting, Guo, Peng, Ran, Songlin, Han, Lei, Fan, Chuangang, Zhang, Haijun |
| Předmět: |
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| Zdroj: |
Interceram: International Ceramic Review; Oct2018, Vol. 67 Issue 6, p30-35, 6p |
| Abstrakt: |
Elongated mullite was synthesized via an in situ solid-phase reaction using α-Al2O3 and SiO2 as the raw materials and TiO2 as an additive, and characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). On the basis of thermodynamic analysis of the reaction process, the effects of TiO2 content and reaction temperature on the phase composition, phase contents, and microstructure of the synthesized samples were investigated. The results showed that elongated mullite with a length of about 8.0 μm was formed for the sample with 7 mass-% TiO2 at 1873 K. The dosage of TiO2 exceeded its solid solubility limit in mullite which resulted in the anisotropic growth of mullite grains. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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