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Effect of diatomite additive on the mechanical and dielectric properties of porous SiO2-Si3N4 composite ceramics

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Abstract

Porous SiO2-Si3N4 composite ceramics with high porosity and excellent mechanical properties were fabricated by pressureless-sintering at relatively low temperature of 1 500 °C using diatomite as pore forming agent. The effects of diatomite on flexural strength, fracture toughness, shrinkage, porosity and phase transformation of the porous ceramics were investigated in detail. Compared with that of the ceramic without adding diatomite, the porosity of the ceramic with 10% diatomite is increased by about 27.4%, the flexural strength and fracture toughness reaches 78.04 MPa and 1.25 MPa·m1/2, respectively. As the porosity increases, the dielectric constant of porous SiO2-Si3N4 ceramic decreases obviously from 3.65 to 2.95.

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References

  1. Pyzik AJ, Beaman DR. Microstructure and Properties of Self-reinforced Silicon Nitride[J]. J. Am. Ceram. Soc., 1993, 76(11): 2737–2744

    Article  Google Scholar 

  2. Chen DY, Zhang BL, Zhuang HR, et al. Combustion Synthesis of Network Silicon Nitride Porous Ceramics[J]. Ceram. Int., 2003, 29(4): 363–364

    Article  Google Scholar 

  3. Fukasawa T, Deng ZY, Ando M, et al. Synthesis of Porous Silicon Nitride with Unidirectionally Aligned Channels Using Freeze-drying Process[J]. J. Am. Ceram. Soc., 2002, 85(9): 2151–2155

    Article  Google Scholar 

  4. Takahashi M, Fa-Zhi Z, Kato T, et al. Gelcasting Fabrication of Porous Ceramics Using a Continuous Process[J]. J. Eur. Ceram. Soc., 2006, 26(4-5): 667–671

    Article  Google Scholar 

  5. Sepulveda P, Binner JGP. Processing of Cellular Ceramics by Foaming and In Situ Polymerisation of Organic Monomers[J]. J. Eur. Ceram. Soc., 1999, 19(12): 2059–2066

    Article  Google Scholar 

  6. Diaz A, Hampshire S. Characterisation of Porous Silicon Nitride Materials Produced with Starch[J]. J. Eur. Ceram. Soc., 2004, 24(2): 413–419

    Article  Google Scholar 

  7. Zhang RB, Fang DN, Pei YM, et al. Microstructure, Mechanical and Dielectric Properties of Highly Porous Silicon Nitride Ceramics Produced by A New Water-based Freeze Casting[J]. Ceram. Int., 2012, 38(5): 4373–4377

    Article  Google Scholar 

  8. Jia DC, Zhou Y, Lei TC. Ambient and Elevated Temperature Mechanical Properties of Hot-pressed Fused Silica Matrix Composite[J]. J. Eur. Ceram. Soc., 2003, 23(5):801–808

    Article  Google Scholar 

  9. Kicevic D, Gasic M, Markovic D. A Statistical Analysis of the Influence of Processing Conditions on the Properties of Fused Silica[J]. J. Eur. Ceram. Soc., 1996, 16(8): 857–864

    Article  Google Scholar 

  10. Lyons JS, Starr TL. Strength and Toughness of Slip-cast Fused-silica Composites[J]. J. Am. Ceram. Soc., 1994, 77(6): 1673–1675

    Article  Google Scholar 

  11. Li XM, Yin XW, Zhang LT, et al. Mechanical and Dielectric Properties of Porous Si3N4-SiO2 Composite Ceramics[J]. Mat. Sci. Eng. a-Struct., 2009, 500(1-2): 63–69

    Article  Google Scholar 

  12. Xia YF, Zeng YP, Jiang DL. Dielectric and Mechanical Properties of Porous Si3N4 Ceramics Prepared via Low Temperature Sintering[J]. Ceram. Int., 2009, 35(4):1699–1703

    Article  Google Scholar 

  13. Martinovic S, Vlahovic M, Boljanac T, et al. Preparation of Filter Aids Based on Diatomites[J]. International Journal of Mineral Processing, 2006, 80(2-4): 255–260

    Article  Google Scholar 

  14. Lu Y, Yang J, Lu W, et al. Synthesis of Porous Silicon Nitride Ceramics from Diatomite[J]. Mater. Manuf. Process., 2010, 25(9): 998–1000

    Article  Google Scholar 

  15. Hadjar H, Hamdi B, Jaber M, et al. Elaboration and Characterisation of New Mesoporous Materials from Diatomite and Charcoal[J]. Micropor. Mesopor. Mat., 2008, 107(3): 219–226

    Article  Google Scholar 

  16. Wu JH, Guo JK, Li BS. Preparation and Properties of SiO2 Matrix Composites Doped with AlN Particles[J]. J. Mater. Sci., 2000, 35(19): 4895–4900

    Article  Google Scholar 

  17. Shan SY, Yang JF, Gao JQ, et al. Porous Silicon Nitride Ceramics Prepared by Reduction-nitridation of Silica[J]. J. Am. Ceram. Soc., 2005, 88(9): 2594–2596

    Article  Google Scholar 

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Authors and Affiliations

  1. Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, 250061, China

    Guanglei You  (油光磊), Jianqiang Bi  (毕见强), Yafei Chen & Chonglong Yin

  2. School of Material Science and Engineering, Shandong University, Jinan, 250061, China

    Guanglei You  (油光磊), Jianqiang Bi  (毕见强), Yafei Chen & Chonglong Yin

  3. State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing, 100084, China

    Chang’an Wang

Authors
  1. Guanglei You  (油光磊)
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  2. Jianqiang Bi  (毕见强)
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  3. Yafei Chen
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  4. Chonglong Yin
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  5. Chang’an Wang
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Corresponding author

Correspondence to Jianqiang Bi  (毕见强).

Additional information

Supported by the National Natural Science Foundation of China (No.51272132), Independent Innovation Foundation of Shandong University (No.2012TS213), State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University(No. KF201403)

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You, G., Bi, J., Chen, Y. et al. Effect of diatomite additive on the mechanical and dielectric properties of porous SiO2-Si3N4 composite ceramics. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 31, 528–532 (2016). https://doi.org/10.1007/s11595-016-1404-x

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  • DOI: https://doi.org/10.1007/s11595-016-1404-x

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