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Synthesis and Characterization of a Boron-Containing Precursor for ZrB2 Ceramic
X. Y. Tao1, Z. Xiang1, S. Zhou1, Y. Zhu1, W. Qiu2, T. Zhao2
1 School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China
2 Laboratory of Advanced Polymer Materials, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
received August 4, 2015, received in revised form September 6, 2015, accepted September 28, 2015
Vol. 7, No. 1, Pages 107-112 DOI: 10.4416/JCST2015-00041
Abstract
A precursor for ZrB2 ceramic was successfully synthesized in a chemical reaction between polyzirconoxanesal (PZS) and boric acid. The molecular structure of the precursor, thermal properties and the pyrolysis behavior of the precursor were investigated. The results showed that the as-synthesized precursor was a polymer based on Zr-O-C-B bonds. The precursor was stable in air atmosphere and soluble in common organic solvents. The ceramic yield of the precursor at 1200 °C was around 65.5 % under N2 atmosphere. The derived ceramics obtained at 1200 °C were composed of B2O3, ZrO2 and carbon. When the temperature was increased up to 1300 °C, peaks of ZrC emerged owing to carbothermal reduction. m-ZrO2 and t-ZrO2 disappeared when the pyrolysis temperature was increased to above 1400 °C. ZrB2 became the predominant phase when the pyrolysis temperature was increased up to 1500 °C.
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Keywords
Zirconium diboride, preceramic polymers, boric acid, precursor infiltration pyrolysis
References
1 Smeacetto, F., Ferraris, M., Salvo, M.: Protective coatings for carbon bonded carbon fibre composites, Ceram. Int., 34, 1297 – 1301, (2008).
2 Hutton, T.J., McEnaney, B., Crelling, J.C.: Structural studies of wear debris from carbon-carbon composite aircraft brakes, Carbon, 37, 37907 – 916, (1999).
3 Shimada, S., Sato, T.: Preparation and high temperature oxidation of SiC compositionally graded graphite coated with HfO2, Carbon, 40, 2469 – 2475, (2002).
4 Park, S.J., Cho, M.S., Lee, J R.: Influence of molybdenum disilicide filler on carbon-carbon composites, Carbon, 37, 1685 – 1689, (1999).
5 Cheng, G.W.: An inorganic-organic hybrid precursor strategy for the synthesis of zirconium diboride powders, Int. J. Refract. Met. H., 36, 149 – 153, (2013).
6 James, W.Z., Greg, E.H., William, G.F., Frederic, M., Alida, B.: Fabrication and properties of reactively hot pressed ZrB2-SiC ceramics, J. Eur. Ceram. Soc., 27, 2729 – 2736, (2007).
7 Guo, S.Q., Hu, C.F., Kagawa, Y.: Mechanochemical processing of nanocrystalline zirconium diboride powder, J. Am. Ceram. Soc., 94, 3643 – 3647, (2011).
8 Wu, W.W., Zhang, G.J., Kan, Y.M., Wang, P.L., Vanmeensel, K., Vleugels, J., Biest, O.V.: Synthesis and microstructural features of ZrB2-SiC based composites by reactive spark plasma sintering and reactive hot pressing, Scripta Mater., 57, 317 – 320, (2007).
9 Hou, Y., Hu, P., Zhang, X.H., Gui, K.X.: Effects of graphite flake diameter on mechanical properties and thermal shock behavior of ZrB2-nanoSiC-graphite ceramics, Int. J. Refract. Met. H., 41, 133 – 137, (2013).
10 Zhao, H.L., Wan, J.L., Zhu, Z.M., Pan W., Wang J.: In situ synthesis mechanism of ZrB2-ZrN composite, Mater. Sci. Eng., A452-453, 130 – 134. (2007).
11 Zhao, H., He, Y., Jin, Z.Z.: Preparation of zirconium boride powder, J. Am. Ceram. Soc., 78, [9], 2534 – 6, (1995).
12 Tsuchida, T., Yamamoto, S.: Mechanical activation assisted self-propagating high-temperature synthesis of ZrC and ZrB2 in air from Zr/B/C powder mixture, J. Eur. Ceram. Soc., 24, [1], 45 – 51(2004).
13 Mishra, S.K., Das, S., Ramchandrarao, P.: Microstructure evolution during sintering of self-propagating high-temperature synthesis produced ZrB2powder, J. Mater. Res., 17, [11], 2809 – 14, (2002).
14 Bernardo, E., Parcianello, G., Colombo, P., Adair, J.H., Barnes, A.T., Hellmann, J.R., Jones, B.H., Kruise, J., Swab, J.J.: SiAlON ceramics from preceramic polymers and nano-sized fillers: Application in ceramic joining, J. Eur. Ceram. Soc., 32, 1329 – 1335, (2012).
15 Tao, X.Y., Wei, X.Y., Chen, Q., Lu, W.Z., Ma, M., Zhao, T: Synthesis, characterization and thermal behavior of new preceramic polymers for zirconium carbide, Adv. Appl. Ceram., 112, [5], 301 – 305, (2013).
16 Xie, C.M., Chen, M.W., Wei, X., Ge, M., Zhang, W.G.: Synthesis and microstructure of zirconium diboride formed from polymeric precursor pyrolysis, J. Am. Ceram. Soc., 95, [3], 866 – 869, (2012).
17 Li, R.X., Zhang, Y., Lou, H.J.: Synthesis of ZrB2 nanoparticles by sol-gel method, J. Sol-Gel Sci. Techn., 58, 580 – 585, (2011).
18 Tao, X.Y., Li, H., Qiu, W.F., Zhao, T.: Synthesis of nanosized zirconium carbide from preceramic polymers by the facile one-pot reaction, Polym. Advan. Technol., 21, [4], 300 – 304, (2010).
19 Ji, H.M., Yang, M., Li, M.M., Ji. G.Y., Fan, H.N., Sun, X.H.: Low-temperature synthesis of ZrB2 nano-powders using a sorbitol modified sol-gel processing route, Adv. Powder Technol., 25, 910 – 915, (2014).
20 Liu, C.Q., Li, K.Z., Li, H.J., Zhang, S.Y., Zhang, Y L.: In situ synthesis mechanism of ZrB2-ZrC-C composites, Ceram. Int., 40, 10297 – 10302, (2014).
21 Yan, Y.J., Huang, Z.R., Dong, S.M., Jiang, D.L.: New route to synthesize ultra-fine zirconium diboride powders using inorganic-organic hybrid precursors, J. Am. Ceram. Soc., 89, [11], 3585 – 3588, (2006).
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