Abstract
SiC nanowires (SiCNWs) are suitable candidates used as additives to improve the thermal conductivity of alumina, since they exhibit superior properties such as high chemical and thermal stability. In this study, alumina matrix composites reinforced with very small amount of β-SiC/SiO2 core–shell nanowires were fabricated by hot-pressing. They were first characterized and compared with alumina matrix specimens containing SiC nanopowder. It was found out that with 0.2 wt% SiC additives, the grain sizes of the alumina specimens were reduced by 20 % of that of the monolithic one, regardless of the shape of the SiC additives. Vickers hardness of specimen containing both SiCNWs and SiC nanopowders slightly increased, while fracture toughness decreased more than that of the monolithic alumina. Thermal conductivity of the specimens increased with increased amount of SiCNWs and was better than those of the specimens containing SiC nanopowders. The alumina composite containing 0.2 wt% SiCNWs had higher thermal conductivity than that of the monolithic alumina by as much as 45 %. From these results, it is clear that only small amount of nanosized SiC as an additive material, particularly SiCNWs, has a significant effect on the properties of alumina matrix composites.
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Okada A (2008) J Eur Ceram Soc 28:1097
Rahaman MN, Yao A, Bal BS, Garino JP, Ries MD (2007) J Am Ceram Soc 90:1965
Wang HZ, Gao L, Guo JK (2000) Ceram Int 26:391
Sciti D, Vicens J, Bellosi A (2002) J Mater Sci 37:3747
Collin MIK, Rowcliffe DJ (2001) J Am Ceram Soc 84:1334
Chou YS, Green DJ (1994) J Eur Ceram Soc 14:303
Kim DW, Choi YJ, Choi KJ, Park JG, Park JH, Pimenov SM, Frolov VD, Abanshin NP, Gorfinkel BI, Rossukanyi NM, Rukovishnikov AI (2008) Nanotechnology 19:225706
Ito Y, Takahashi K, Fujii M, Zhang X (2009) Heat Transf–Asian Res 38:297
Wong EW, Sheehan PE, Lieber CM (1997) Science 277:1971
Li YY, Chiu SC (2009) J Cryst Growth 311:1036
Chen JJ, Tang WH, Xin LP, Shi QA (2011) Appl Phys A Mater 102:213
Yakimova R, Petoral RM, Yazdi GR, Vahlberg C, Spetz AL, Uvdal K (2007) J Phys D Appl Phys 40:6435
Khongwong W, Imai M, Yoshida K, Yano T (2009) J Ceram Soc Jpn 117:439
Khongwong W, Yoshida K, Yano T (2010) Mater Sci Eng B Adv 173:117
Khongwong W, Yoshida K, Yano T (2010) Nanostruct Mater Nanotechnol IV 31:51
Rasband WS (2011) ImageJ. U.S. National Institutes of Health, Bethesda, ML, USA
Chase MW Jr, Davies CA, Downey JR Jr, Frurip DJ, McDonald RA, Syverud AN (1985) JANAF Thermochemical Tables. Part 1, Al-Co
Krell A (1998) Ceram Eng Sci Proc 19:159
Nicoletto G, Tucci A, Esposito L (1996) Fatigue Fract Eng Mater Struct 19:119
Goldsmid HJ, Penn AW (1968) Phys Lett A 27:523
Hirosaki N, Okamoto Y, Ando M, Munakata F, Akimune Y (1996) Adv Ceram Matrix Compos III Ceram Trans 74:227
Louet N, Reveron H, Fantozzi G (2008) J Eur Ceram Soc 28:205
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Jiraborvornpongsa, N., Imai, M., Yoshida, K. et al. Effects of trace amount of nanometric SiC additives with wire or particle shapes on the mechanical and thermal properties of alumina matrix composites. J Mater Sci 48, 7022–7027 (2013). https://doi.org/10.1007/s10853-013-7511-6
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DOI: https://doi.org/10.1007/s10853-013-7511-6