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| Field | Value |
| Title | In-situ reaction sintering of porous mullite-bonded silicon carbide, its mechanical behavior and high temperature applications |
| Names |
BARDHAN, N
(author) BHARGAVA, P (author) |
| Date Issued | 2009 (iso8601) |
| Abstract | The purpose of this work was to study reaction bonding technique as an effective way to produce porous silicon carbide ceramics. These can be tailored to have near-zero dimensional change while sintering, high service temperature under load and excellent thermal shock resistance. Sintered porous mullite-bonded silicon carbide was produced having an open porosity of 20-25%. XRD and SEM were used to confirm formation of the mullite phase and to Study the sample microstructure. Rectangular bars of the material made using the slip-casting method were tested for thermal shock resistance as a function of the critical quench temperature difference the samples could withstand. Cyclic quench tests carried out from 1000 degrees C to 5 degrees C showed a loss in elastic (Young's) modulus of the order of 40% of the initial value in the first 6-8 cycles. Further thermal cycling did not have a significant influence on the elastic modulus. The possibility of the use of porous mullite-bonded silicon carbide in various metal-melting/casting applications has been investigated. |
| Genre | Proceedings Paper |
| Topic | aqueous suspension |
| Identifier | 978-0-470-34492-7 |
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