Development of sintered mullite aggregate from off grade sillimanite
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Development of sintered mullite aggregate from off grade sillimanite
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| Creator |
Tripathi, Himansu Shekhar
Ghosh, A Mukherjee, B Das, S K |
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| Subject |
Engineering Materials
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| Description |
Characterisation of off grade sillimanite ore and its reaction sintering with calcined alumina to develop mullite aggregate were studied. Off grade sillimanite ore was vibro milled in water for 8 hrs. The dilatometric study of powdered sillimanite ore indicates that densification starts from 973degreesC and mullite formation starts at 1425degreesC. TiO2 (addition favours the densification process upto 1550degreesC. The mullite formed is mostly acidular in nature. Microstructure shows intergranular vitreous phase. The main crystalline phase is mullite with very small amount of corundum. Mullite sample developed at 1600degreesC without any TiO2 shows the highest strength of 1442 MPa at 1200degreesC.
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| Publisher |
Elsevier
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| Date |
2004-01
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| Type |
Article
PeerReviewed |
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| Identifier |
Tripathi, Himansu Shekhar and Ghosh, A and Mukherjee, B and Das, S K (2004) Development of sintered mullite aggregate from off grade sillimanite. Industrial Ceramics , 24 (1). pp. 35-38. ISSN 1121-7588
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| Relation |
http://cgcri.csircentral.net/547/
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