Fabrication and Properties of AlN/CNT Composite Ceramics

Hai Long Liang; Yong Li Li; Jie Tang; Hai Lin Liu; Yan Li Huo; Yu Feng Chen

doi:10.4028/www.scientific.net/KEM.512-515.898

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Fabrication and Properties of AlN/CNT Composite...

Fabrication and Properties of AlN/CNT Composite Ceramics

Abstract:

High thermal conductivity and dense AlN/CNT composite ceramics with additive Y2O3 were fabricated by spark plasma sintered (SPS) in this paper. The results indicated that CNT blocked the densification process in a certain extent, but in the sintering temperature of 1700°C, the relative density of composite ceramics were more than 97% with 1-10% volume fractions of CNT. The content of additive Y2O3 affected the thermal conductivity of AlN/CNT obviously. The thermal conductivity of composite material linearly decreased when the content of CNT increased and the tubular structure of CNT had been destructed during once sintering. The effects of the CNT structural damage to the thermal conductivity of composite ceramics were improved by adjusting the sintering process. The thermal conductivity of the composite ceramics with 3% volume fractions of CNT sintering in 1550°C/3min×3 was up to 145W/m•K, which higher than the single-phase AlN ceramics.

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Periodical:

Key Engineering Materials (Volumes 512-515)

Pages:

898-901

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.898

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Online since:

June 2012

Authors:

Hai Long Liang, Yong Li Li, Jie Tang, Hai Lin Liu, Yan Li Huo, Yu Feng Chen

Keywords:

Aluminum Nitride (AlN), Carbon Nanotube (CN), SPS, Thermal Conductivity (TC)

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References

[1] S. Iijima, Helical microtubules of graphitic carbon, J. Nature. 354(1991) 56-58.

DOI: 10.1038/354056a0

Google Scholar

[2] J.P. Salvetat, G.Andrew, D. Driggs, Elastic and shear modulus of single-walled carbon nanotube roper, J. Phys Rev. Lett. 82(1999) 944-947.

DOI: 10.1103/physrevlett.82.944

Google Scholar

[3] G. A. Slack , R. A. Tanzilli, R. O. Pohl, The intrinsic thermal conductivity of A1N, J. Physics and Chemistry of Solids. 48(1987):641~647.

DOI: 10.1016/0022-3697(87)90153-3

Google Scholar

[4] A. R. Olszyna, A. Sokolowska, J. Szmidt, Dielectric properties of nanocrystalline AlN with respect to its crystal chemistry, J. Inorganic Materials. 3(2001) 1311-1333.

DOI: 10.1016/s1466-6049(01)00147-7

Google Scholar

[5] K. A. Khor, L. G. Yua, Y. Murakoshi, Spark plasma sintering of Sm2O3-doped aluminum nitride, J. Euro Ceram. Soc. 25(1999) 1057–1065.

DOI: 10.1016/j.jeurceramsoc.2003.12.020

Google Scholar

[6] H. Buhr, G. Muller, Microstructure and thermal conductivity of AlN (Y2O3) ceramics sintered in different atmospheres, J. Euro Ceram. Soc. 12(1993) 271-277.

DOI: 10.1016/0955-2219(93)90102-w

Google Scholar