TY - GEN
T1 - Processing, microstructure, and properties of carbon nanotube reinforced silicon carbide
AU - Carlson, Thomas A.
AU - Marsh, Charles P.
AU - Kriven, Waltraud M.
AU - Stynoski, Peter B.
AU - Welch, Charles R.
N1 - Funding Information:
This project is funded through the Center Directed Research Program from the Engineer Research and Development Center under a project entitled “ Nanoscale Studies of Polycrystalline Materials with Emphasis on Ceramics Synthesis”. The authors would like to thank the Army Research Laboratory at Aberdeen Proving Ground, MD, for the use of their SPS equipment and their time in making the samples discussed in this paper.
PY - 2013
Y1 - 2013
N2 - The addition of multi-walled carbon nanotube reinforcements to a ceramic matrix has been suggested to improve the fracture toughness. The hypothesized improvement is thought to be the result of crack bridging and other toughening mechanisms. However, no such improvement in toughness has not been achieved to date for a multi-walled carbon nanotube and silicon carbide composite. However, there are several processing techniques, compositions, and methods for producing said composite, which may inhibit or foster success. Here, we report the processing, microstructure, and properties of a multi-walled carbon nanotube and silicon carbide composite material. The processing required careful mixing of the carbon nanotubes within the matrix in order to maximize dispersion and minimize carbon nanotube damage. The sintering required careful control of specific parameters to produce the desired microstructure and maximum density. The spark plasma sintering technique used was. These processing methods resulted in unique microstructures which in turn affected the material properties. The effect on the mechanical strength was evaluated using three-point flexural testing.
AB - The addition of multi-walled carbon nanotube reinforcements to a ceramic matrix has been suggested to improve the fracture toughness. The hypothesized improvement is thought to be the result of crack bridging and other toughening mechanisms. However, no such improvement in toughness has not been achieved to date for a multi-walled carbon nanotube and silicon carbide composite. However, there are several processing techniques, compositions, and methods for producing said composite, which may inhibit or foster success. Here, we report the processing, microstructure, and properties of a multi-walled carbon nanotube and silicon carbide composite material. The processing required careful mixing of the carbon nanotubes within the matrix in order to maximize dispersion and minimize carbon nanotube damage. The sintering required careful control of specific parameters to produce the desired microstructure and maximum density. The spark plasma sintering technique used was. These processing methods resulted in unique microstructures which in turn affected the material properties. The effect on the mechanical strength was evaluated using three-point flexural testing.
KW - Carbon nanotubes (CNTs)
KW - Flexural strength
KW - Silicon carbide (SiC)
KW - Spark plasma sintering (SPS)
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U2 - 10.1007/978-1-4614-4553-1_17
DO - 10.1007/978-1-4614-4553-1_17
M3 - Conference contribution
AN - SCOPUS:84869800497
SN - 9781461445524
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 147
EP - 159
BT - Composite Materials and Joining Technologies for Composites - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics
T2 - 2012 Annual Conference on Experimental and Applied Mechanics
Y2 - 11 June 2012 through 14 June 2012
ER -