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Enhanced Mechanical and Electromagnetic-Wave-Absorption Properties of Ceramic Matrix Composites Fabricated by Novel Laser-Machining-Assisted CVI
J. Wang, Y. Liu, L. Cheng, X. Chen, Q. Zhou, Z. Hou, F. Ye
Science and Technology on Thermostructure Compsite Materials Laboratory, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
received October 10, 2017, received in revised form November 21, 2017, accepted January 16, 2018
Vol. 9, No. 1, Pages 79-84 DOI: 10.4416/JCST2017-00080
Abstract
A novel technique based on laser-machining-assisted chemical vapor infiltration (LA-CVI) was proposed and developed to fabricate ceramic matrix composites (CMCs). The results showed that the compressive strength, the shear strength and the bending strength of the C/SiC composites increased by 50.7 %, 11.8 % and 17.8 %, respectively, compared with those of classical CVI-C/SiC composites. The improvement can be attributed to the reopening of the diffusion channels and formation of a dense band and a coating around the channels. On the other hand, the minimum reflection loss (RL) of the C/SiC composites fabricated by means of LA-CVI improved 307 % against that of CVI-C/SiC composites in the frequency range of 8 GHz to 18 GHz owing to the multiple reflection of the electromagnetic (EM) waves in periodic micro-holes. The advantages of the LA-CVI method with regard to improving mechanical properties and the EM-wave-absorption properties of CMCs were demonstrated.
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Keywords
Ceramic matrix composites, laser-machining-assisted CVI, mechanical properties, electromagnetic-wave-absorbing properties
References
1 Naslain. R.: Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview, Compos. Sci. Technol., 64, [2], 155 – 170, (2004).
2 Delhaes, P.: Chemical vapor deposition and infiltration processes of carbon materials, Carbon, 40, [5], 641 – 657, (2002).
3 Qian, J., Wang, J., Hou, G., et al.: Preparation and characterization of biomorphic SiC hollow fibers from wood by chemical vapor infiltration, Scripta Mater., 53, [12], 1363 – 1368, (2005).
4 Yin, X., Kong, L., Zhang, L., et al.: Electromagnetic properties of Si-C-N based ceramics and composites, Int. Mater. Rev., 59, [6], 326 – 355, (2014).
5 Naslain, R.: CVI Composites, Warren Red. Ceramic Matrix Composites. London: Chapman and Hall, Blackie, 199 – 244, (1992).
6 Gonon, M., Fantozzi, G.: Densification of SiC/C/SiC composite materials by successive impregnation pyrolysis cycles with an organ metallic precursor, High Temperature Ceramic Matrix Composites, Woodhead, Bordeaux, 437 – 445, (1993).
7 Hillig, W.B.: Making ceramic composites by melt infiltration, Am. Ceram. Soc. Bull., 73, [4], 56 – 62, (1994).
8 Reznik, B., Gerthsen, D., Hüttinger, K.J.: Micro-and nanostructure of the carbon matrix of infiltrated carbon felts, Carbon, 39, [2], 215 – 229, (2001).
9 Shaw, J.H., Rossol, M.N., Marshall, D.B., Zok, F.W.: Effects of tow-scale holes on the mechanical performance of a 3D woven C/SiC composite, J. Am. Ceram. Soc., 98, 948 – 956, (2015).
10 Golecki, I.: Rapid vapor-phase densification of refractory composites. Mater. Sci. Eng.: R, 20, 37 – 124, (1997).
11 Feng, Y., Feng, Z., Li, S., Zhang, W., Luan, X., Liu, Y., Cheng, L., Zhang, L.: Micro-CT characterization on porosity structure of 3D Cf / SiCm composite, Composites Part A: Appl. Sci. Manuf., 46, [1], 133 – 141, (2009).
12 Jing, W., Chunhui, W., Yongsheng, L., Laifei, C., Weinan, L., Qing, Z., Xiaojun, Y.: Microstructure and chemical bond evolution of diamond-like carbon films machined by femtosecond laser, Appl. Surf. Sci., 340, 34 – 55, (2015).
13 Ruoheng, Z., Weinan, L., Yongsheng. L., Chunhui, W., Jing, W., Xiaojun, Y., Laifei, C.: Machining parameter optimization of C/SiC composites using high power pico-second laser, Appl. Surf. Sci., 330, 321 – 331, (2015).
14 Yongsheng, L., Jing, W., Weinan, L., Chunhui. W., Qing, Z., Xiaojun, Y., Laifei, C.: Effect of energy density and feeding speed on micro-holes drilling in SiC/SiC composites by picosecond laser, Int. J. Adv. Manuf. Tech., 84, [9], 1917 – 1925, (2016).
15 Jing, W., Laifei, C., Yongsheng, L., Litong, Z., Xiaoying, L., Yi, Z., Qing. Z.: Enhanced densification and mechanical properties of carbon fiber reinforced silicon carbide matrix composites via laser machining aided chemical vapor infiltration, Ceram. Int., 43, 11538 – 11541, (2017).
16 Xu, Y.D., Cheng, L.F., Zhang, L.T., Yin, H.F., Yin, X.W.: Microstructure and mechanical properties of three-dimensional textile hi-nicalon SiC/SiC composites by chemical vapor infiltration, J. Am. Ceram. Soc., 85, [5], 1217 – 1221, (2002).
17 Mei, H., Cheng, L.F., Zhang, L.T., Luan, X.G., Zhang, J.: Behavior of two-dimensional C/SiC composites subjected to thermal cycling in controlled environments, Carbon, 44, [1], 121 – 127, (2006).
18 Yongsheng, L., Chunhui, W., Weinan, L., Xiaojun, Y., Qing, Z., Laifei, C., Litong, Z.: Effect of energy density on the machining character of C/SiC composites by picosecond laser, Appl. Phys. A, 116, [3], 1221 – 1228, (2013).
19 Zongbei, H., Litong, Z., Yi, Z., Yongsheng, L., Xiaoying, L., Bo, C.: Microstructural characterization and failure analysis of 2D C/SiC two-layer beam with pin-bonded hybrid joints, Int. J. Adhes. Adhes., 57, 70 – 78, (2015).
20 Yin, X., Xue, Y., Zhong, L., Cheng, L.; Dielectric, electromagnetic absorption and interference shielding properties of porous yttria-stabilized zirconia/silicon carbide composites, Ceram. Int., 38, 2421 – 2427, (2012).
21 Nowak, B., Karlström, O., Backmann, P., Brink, A. Zevenhoven, M., Voglsam, S., Winter, F., Hupa, M.: Mass transfer limitation in thermogravimetry of biomass gasification, J. Therm. Anal. Calorim., 111, [1], 183 – 192, (2013).
22 Yunfeng, H., Litong, Z., Laifei, C., Zhengxian, L., Jihong, D.: Microstructure and mechanical properties of SiCP/SiC and SiCW/SiC composites by CVI, J. Mater. Sci., 45, 392 – 398, (2010).
23 Hwan-Sup, L., Jun-Gyu, K., Doo-Jin, C.: The effects of SiC whiskers and an SiC film coating deposited by chemical vapor infiltration (CVI) on a porous cordierite substrate, J. Mater. Sci., 43, 5574 – 5578, (2008).
24 Nakai, A., Ohki, T., Takeda, N., Hamada, H.: Mechanical properties and micro-fracture behaviors of flat braided composites with a circular hole, Compos. Struct, 52, 315 – 322, (2001).
25 Suo, T., Fan, X., Hu, G. et al.: Compressive behavior of C/SiC composites over a wide range of strain rates and temperature, Carbon, 62, 481 – 492, (2013).
26 Guo, H.B., Wang, B., Jia, P.R. et al.: In-plane shear behaviours of a 2D-SiC/SiC composite under various loading conditions, Ceram. Int., 41, 11562 – 11569, (2015).
27 Yang, W.: Development of CVI process and property evaluation of CVI-SiC/SiC composites, Doctoral thesis, Institute of Advanced Energy, Kyoto University, (2002).
28 Liang, J., Xiao, H., Gao, P. et al.: Microstructure and properties of 2D-Cf/SiC composite fabricated by combination of CVI and PIP process with SiC particle as inert fillers, Ceram. Int., 43, [2], 1788 – 1794, (2017).
29 Yin, X.W., Cheng, L.F., Zhang, L.T., Travitzky, N., Greil. P.; Fibre-reinforced multifunctional SiC matrix composite materials, Int. Mater. Rev., 62, [3] 117 – 172, (2017).
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