Hemp hurd based carbon template for reaction formed silicon carbide ceramic

Yan, Z. L. and Ma, T. and Zhang, J. C. and Zhang, H. and Wang, H. (2013) Hemp hurd based carbon template for reaction formed silicon carbide ceramic. In: 19th International Conference on Composite Materials (ICCM19): Composite Materials: The Great Advance, 28 Jul-2 Aug 2013, Montreal, Canada.

Official URL: http://www.iccm19.org


Reaction formed silicon carbide (RF-SiC) and reaction bonded silicon carbide (RB-SiC) are both fabricated with silicon infiltration as sintering process, in which silicon infiltrated into the porous template and reacted with the carbon in it to form silicon carbide. Although RF-SiC has been invented by Hucke for more than 40 years and shows high mechanical properties than RB-SiC, it hasn't been produced in industrial scale due to its high cost and some technical issues whereas RB-SiC has been produced in industrial scale and applied in many different fields.

In this paper, the carbonization of the pre-templates of hemp hurd powder, the pore structure of the corresponding carbon templates, and the microstructure of the resulted ceramics were studied to evaluate their suitability for the fabrication of RF-SiC.

The carbonization study shows that the carbon templates from pre-templates of hemp hurd powder have controllable density because the pretemplates have stable linear shrinkages in three directions and weight residual while carbonization.

The cracking of pre-templates in carbonization is also evitable. The pore size distribution of the resulted carbon templates is narrow and ideal for the fabrication of RF-SiC. The microstructure of the resulted RF-SiC ceramic testified the suitability for RF-SiC fabrication of pre-templates of hemp hurd powder.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 by Canadian Association for Composite Structures and Materials (CACSMA). Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - No Department
Date Deposited: 12 Aug 2014 04:49
Last Modified: 07 Mar 2017 01:39
Uncontrolled Keywords: carbon template; hemp hurd powder; reaction formed silicon carbide ceramic; pore structure
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0910 Manufacturing Engineering > 091006 Manufacturing Processes and Technologies (excl. Textiles)
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8605 Wood, Wood Products and Paper > 860501 Paper Products (incl. Coated Paper)
URI: http://eprints.usq.edu.au/id/eprint/25756

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