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http://nopr.niscair.res.in/handle/123456789/3310
Title: | Tailoring of density in carbon foams |
Authors: | Sharma, S C Naidu, N K Ramakrishna Lakshmanan, T S Mittal, M C Sinha, P P Vaidyan, V K |
Issue Date: | Feb-2009 |
Publisher: | CSIR |
Abstract: | Cell-size of the sacrificial polymeric scaffolding and concentration of the impregnating phenolic resin are taken as two variables for tailoring density in the carbon foam. Effects of cell-size and resin-concentration on density of carbon foam are studied under three categories: (i) individual effect of varying cell-size with fixed resin-concentration, (ii) individual effect of varying resin-concentration with fixed cell-size, and (iii) synergistic effect of varying cell-size and resin-concentration. For a fixed resin-concentration and particularly for lower concentration of 10%, density marks a small incremental effect with the reduction in cell-size. It increases from 0.041 to 0.055 g/cc for a cell-size of 30 PPI (pores per inch) and 80 PPI respectively. For a fixed cell-size and particularly for lower cell-size of 80 PPI, density shows a large incremental effect with increase in resin-concentration. Density increases from 0.055 to 0.210 g/cc for a resin-concentration of 10% and 90% respectively. Under the combined effect of decreasing cell-size and increasing resin-concentration, density records a massive increase of 412.2% from initial combination of 30 PPI cell-size and 10% resin-concentration to last combination of 80 PPI cell-size and 90% resin-concentration. |
Page(s): | 56-60 |
URI: | http://hdl.handle.net/123456789/3310 |
ISSN: | 0971-4588 |
Appears in Collections: | IJEMS Vol.16(1) [February 2009] |
Files in This Item:
File | Description | Size | Format | |
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IJEMS 16(1) 56-60.pdf | 2.18 MB | Adobe PDF | View/Open |
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