Effects of SiO2 and Fe2O3 on Morphological of Mullite

Cun Shu Huang; Jia Chen Liu; An Ran Guo; Lu Yang; Di Song

doi:10.4028/www.scientific.net/KEM.434-435.64

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Effects of SiO2 and Fe2O3 on Morphological of...

Effects of SiO₂ and Fe₂O₃ on Morphological of Mullite

Abstract:

Effects of SiO2 and Fe2O3 on morphological of mullite were investigated for a special use related to mullite containing SiO2 and Fe2O3. It was concluded that, when Al2O3/SiO2 ratio near the theoretical component of mullite, the composites cannot been sintered at 1600°C. The normal morphology of mullite presents granule form with Fe2O3 addition, while takes a long column shape with the condition of excessive. SiO2 presenting. Fe2O3 can promote sintering of mullite, as well as growing in needle-like morphology.

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

64-65

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.64

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Online since:

March 2010

Authors:

Cun Shu Huang, Jia Chen Liu, An Ran Guo, Lu Yang, Di Song

Keywords:

Fe₂O₃, Morpholoy, Mullite, SiO₂

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References

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[3] J . Wu. H . Lin, J.B. Li, et al.: Materials Letters Vol . 63 (2009), p.2309. (a) (b) (c) Fig. 1 the SEM of specimens (a) SEM of 2#, the weight-ratio of mullite but added some Fe2O3 (b) SEM of 3# (more SiO2) (c) SEM of 4# (more Fe2O3).

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