| Mullite Refractories from Clay-Bauxite or
Quartz-Bauxite Mixes |
N. B. CHATTERJEE AND B. N. PANTI
Pages : 116-121
DOI :10.1080/0371750X.1965.10855527 |
| Abstract |
| Investigations were undertaken to study the properties qf mullite rifractories from Katni
and Shevroy bauxites with addition qf Jabalpur fire-clay or quartz. Mullite was estimated
by chemical analysis and confirmed by X-ray and petrographic examination. Rifractories
having 80-90 per cent mullite could be prepared out qf these mixes after firing at temperatures
1500°-l600°C. In spite qf high mullite content the porosity qf these rifractories
was very high (35-48 per cent) and the rifractoriness under load particularly initial softening
point ( Ta) was rather low ( 1400° -1600°C) . These maJ be due to incipient growth qf
mullite crystals and lack qf inter-crystalline bond. |
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