Fabrication and properties of aluminum silicate fibrous materials with in situ synthesized K2Ti6O13 whiskers

Hao Liu; Nan Wei; Zhou-fu Wang; Xi-tang Wang; Yan Ma

doi:10.1007/s12613-017-1525-z

Volume 24 Issue 11

Nov. 2017

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(11): 1335-1340

Hao Liu, Nan Wei, Zhou-fu Wang, Xi-tang Wang, and Yan Ma, Fabrication and properties of aluminum silicate fibrous materials with in situ synthesized K₂Ti₆O₁₃ whiskers, Int. J. Miner. Metall. Mater., 24(2017), No. 11, pp. 1335-1340. https://doi.org/10.1007/s12613-017-1525-z

Cite this article as:

Hao Liu, Nan Wei, Zhou-fu Wang, Xi-tang Wang, and Yan Ma, Fabrication and properties of aluminum silicate fibrous materials with in situ synthesized K2Ti6O13 whiskers, Int. J. Miner. Metall. Mater., 24(2017), No. 11, pp. 1335-1340. https://doi.org/10.1007/s12613-017-1525-z

Citation:

PDF( 2301 KB)

Research Article

Fabrication and properties of aluminum silicate fibrous materials with in situ synthesized K₂Ti₆O₁₃ whiskers

+ Author Affiliations

Corresponding author:
Hao Liu E-mail: wustlh@163.com
Received: 29 March 2017; Revised: 31 May 2017; Accepted: 31 May 2017

Abstract

Abstract

To improve their mechanical and thermal insulation properties, aluminum silicate fibrous materials with in situ synthesized K₂Ti₆O₁₃ whiskers were prepared by firing a mixture of short aluminum silicate fibers and gel powders obtained from a sol-gel process. During the preparation process, the fiber surface was coated with K₂Ti₆O₁₃ whiskers after the fibers were subjected to a heat treatment carried out at various temperatures. The effects of process parameters on the microstructure, compressive strength, and thermal conductivity were analyzed systematically. The results show that higher treatment temperatures and longer treatment durations promoted the development of K₂Ti₆O₁₃ whiskers on the surface of aluminum silicate fibers; in addition, the intersection structure between whiskers modulated the morphology and volume of the multi-aperture structure among fibers, substantially increasing the fibers' compressive strength and reducing their heat conduction and convective heat transfer at high temperatures.
- aluminum silicate fiber;
- potassium hexatitanate whiskers;
- compressive strength;
- thermal conductivity

FullText(HTML)

Supplements(0)

References(16)

References

[1]	T.P. Brown and P.T.C. Harrison, Crystalline silica in heated man-made vitreous fibres:A review, Regul. Toxicol. Pharm., 68(2014), No. 1, p. 152.
[2]	B. Kanka and H. Schneider, Aluminosilicate fiber/mullite matrix composites with favorable high-temperature properties, J. Eur. Ceram. Soc., 20(2000), No. 5, p. 619.
[3]	S.Q. Guo, C.F. Hu, H. Gao, Y. Tanaka, and Y. Kagawa, SiC (SCS-6) fiber-reinforced Ti₃AlC₂ matirx composites:Interfacial characterization and mechanical behavior, J. Eur. Ceram. Soc., 35(2015), No. 5, p. 1375.
[4]	H. Liu, X.T. Wang, B.G. Zhang, Z.F. Wang, and Y.H. Yang, Structure and properties of CaO-MgO-SiO₂ inorganic glass fiber with additives (Al₂O₃, Y₂O₃), J. Wuhan Univ. Technol. Mater. Sci. Ed., 27(2012), No. 1, p. 58.
[5]	A.K. Bhattacharyya, B.N. Choudhury, P. Chintaiah, and P. Das, Studies on a probable correlation between thermal conductivity, kinetics of devitrification and changes in fiber radius of an aluminosilicate ceramic vitreous fiber on heat treatment, Ceram. Int., 28(2002), No. 7, p. 711.
[6]	S. Ananthakumar, M. Jayasankar, and K.G.K. Warrier, Microsturctural, mechanical and thermal characterisation of sol-gel-derived aluminium titanate-mullite ceramic composites, Acta Mater., 54(2006), No. 11, p. 2965.
[7]	W. Pan and R.T. Li, Crystallization kinetics of the aluminum silicate glass fiber, Mater. Sci. Eng. A, 271(1999), No. 1-2, p. 298.
[8]	J.H. Li, X.G. Ning, H.Q. Ye, J. Pan, and H. Fukunaga, Characterization of the whisker-matrix interfacial reactions in K₂O·6TiO₂ whisker-reinforced aluminium matrix composites, J. Mater. Sci., 32(1997), No. 2, p. 543.
[9]	S. Takaya, Y. Lu, S.J. Guan, K. Miyazawa, H. Yoshida, and H. Asanuma, Fabrication of the photocatalyst thin films of nano-structured potassium titanate by molten salt treatment and its photocatalytic activity, Surf. Coat. Technol., 275(2015), p. 260.
[10]	R.Y. Luo, Y.F. Ni, J.S. Li, C.L. Yang, and S.B. Wang, The mechanical and thermal insulating properties of resin-derived carbon foams reinforced by K₂Ti₆O₁₃ whiskers, Mater. Sci. Eng. A, 528(2011), No. 4-5, p. 2023.
[11]	K. Chung and Y. Hong, Friction and wear properties of scrap tire/potassium hexatitanate whisker composites, J. Ind. Eng. Chem., 19(2013), No. 4, p. 1234.
[12]	W. Wang, C.J. Zhou, G.W. Liu, and G.J. Qiao, Molten salt synthesis of mullite whiskers on the surface of SiC ceramics, J. Alloys Compd., 582(2014), p. 96.
[13]	S.V. Vikram, D.M. Phase, and V.S. Chandel, High-TC phase transition in K₂Ti₆O₁₃ lead-free ceramic synthesised using solid-state reaction, J. Mater. Sci. Mater. Electron., 21(2010), No. 9, p. 902.
[14]	M.A. Siddiqui, V.S. Chandel, and A. Azam, Comparative study of potassium hexatitanate (K₂Ti₆O₁₃) whiskers prepared by sol-gel and solid state reaction routes, Appl. Surf. Sci., 258(2012), No. 19, p. 7354.
[15]	R.L. Penn and J.F. Banfield, Imperfect oriented attachment:dislocation generation in defect-free nanocrystals, Science, 281(1998), No. 5379, p. 969.
[16]	X. Lu, M.C. Arduini-Schuster, J. Kuhn, O. Nilsson, J. Fricke, and R.W. Pekala, Thermal conductivity of monolithic organic aerogels, Science, 255(1992), No. 5047, p. 971.