Hostname: page-component-7c8c6479df-r7xzm Total loading time: 0 Render date: 2024-03-29T13:22:42.667Z Has data issue: false hasContentIssue false

Preparation and Properties of Low Density Replica Carbon Foams*

Published online by Cambridge University Press:  25 February 2011

S. S. Hulsey
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
P. K. Poco
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
Get access

Abstract

Low density foams are used for a variety of applications, including catalytic supports, battery anodes, microporous membranes, and laser fusion targets. The technique for making replica carbon foams described in this paper has been previously reported[I] and involves a process in which an inorganic substrate (sodium chloride) is infused with a carbonizable polymer. After carbonization, the substrate is removed by a leaching process and the wet foam is dried; the resultant foam is referred to as replica carbon. This paper describes improvements in the processing which result in a smaller pore size and improved foam homogeneity.

The original substrate is the single most important factor affecting the resultant structure. Techniques to improve the uniformity of the substrate and the translation of substrate anomalies into the final product are described.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

Work performed under the auspices of the U. S. Department of Energy by the Lawrence Livermore National Laboratory under contract W-7405-ENG-48

References

REFERENCES

1. Pekala, R. W. and Hopper, R. W., “Low-Density Microcellular Carbon Foams”, J. Mater. Sci. 22, 1840 (1987).CrossRefGoogle Scholar