Abstract
Rectorite, Talc and alumina were used to obtain high-quality cordierite with stoichiometric composition (51.3wt% SiO2, 34.9wt% Al2 O3, 13.8wt% Al2O3).The water absorption, apparent porosity, bulk density, thermal expansion coefficient, crystalline phases and microstructure were tested by means of X-ray diffractometer (XRD), scanning electronic microscopy (SEM), Archimedes immersion technique, etc. This work systematically studied the synthesizing process of the cordierite. The result shows that the cordierite can be synthesized at a lower temperature and within a wider temperature range by using the rectorite as clay raw materiah.
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Supported by HuBei Mingliu Rectorite Company.
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Xu, Xh., Wu, Jf. & Hu, Sg. Synthesis of cordierite from rectorite-Talc-alumina without additives. Journal of Wuhan University of Technology-Mater. Sci. Ed. 19, 14–16 (2004). https://doi.org/10.1007/BF03000158
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DOI: https://doi.org/10.1007/BF03000158