Structural characteristics of cordierite/steatite ceramics sintered from mixtures containing pore-forming organovermiculite
作者： M. Valášková , J. Zdrálková , J. Tokarský , G. Simha Martynková , M. Ritz
DOI: 10.1016/J.CERAMINT.2014.07.095
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摘要: Abstract The preceramic mixtures appropriate to the composition of cordierite are composed talc, kaolinite and vermiculite (Ver), and/or organovermiculite (Ver-org) as a pore-forming agent. for sintering at 1300 °C were prepared in two different ways, loosely crucibles compressed into pellets. Structural characterization cordierite/steatite ceramic was performed using X-ray powder diffraction (XRD), FTIR spectroscopy, scanning electron microscopy analysis porosity measurement. samples showed (1) bimodal meso-macropore size distribution unimodal macropore distribution, when included Ver Ver-org, respectively, (2) higher occurred comparison with XRD patterns quantitative phase revealed ceramics indialite (IND) orthorhombic forms enstatite: protoenstatite (PEN) orthoenstatite (OREN). All contained greater amount PEN than OREN slightly quantity IND sintered compare from twice Ver-org high (91 vol%), (about 9 vol%) no OREN. unit cell parameter c pure about 0.001–0.003 nm shorter all INDs. supports structural substitution cations during crystallization Ca 0.50 Mg 1.50 –Ca 0.25 1.75 . IR spectra 400–1600 cm −1 region confirmed presence steatite.
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sci-hub.se 参考文章(45)
I. V. Popova, E. S. Astapova, E. A. Vanina, N. S. Kostyukov, Long-Term Radiation Changes in SK-1 Steatite Ceramic Atomic Energy. ,vol. 92, pp. 261- 264 ,(2002) , 10.1023/A:1016002215342
J. S. Pressnall, J. J. Fitzpatrick, Paul Predecki, High Temperature Guinier X-Ray Diffractometry for Thermal Expansion Measurements in the Hexagonal form of Cordierite ((2MgO•2Al2O3•5SiO2) Advances in x-ray analysis. ,vol. 27, pp. 397- 404 ,(1983) , 10.1154/S0376030800017316
H.Ş. Soykan, Low-temperature fabrication of steatite ceramics with boron oxide addition Ceramics International. ,vol. 33, pp. 911- 914 ,(2007) , 10.1016/J.CERAMINT.2006.02.001
Hasan Gökçe, Duygu Ağaoğulları, M. Lütfi Öveçoğlu, İsmail Duman, Tahsin Boyraz, Characterization of microstructural and thermal properties of steatite/cordierite ceramics prepared by using natural raw materials Journal of The European Ceramic Society. ,vol. 31, pp. 2741- 2747 ,(2011) , 10.1016/J.JEURCERAMSOC.2010.12.007
TM Ul’yanova, NP Krut’ko, Yu V Matrunchik, EM Dyatlova, ES Paemurd, None, A thermostable composite ceramic based on cordierite Glass and Ceramics. ,vol. 63, pp. 411- 414 ,(2006) , 10.1007/S10717-006-0136-3
I. Janković-Častvan, S. Lazarević, D. Tanasković, A. Orlović, R. Petrović, Dj. Janaćković, Phase transformation in cordierite gel synthesized by non-hydrolytic sol–gel route Ceramics International. ,vol. 33, pp. 1263- 1268 ,(2007) , 10.1016/J.CERAMINT.2006.05.003
Xu Qing, Song Chaowen, Chen Wen, Liu Xiaofang, Zhang Feng, Structure and infrared radiation properties of substituted cordierites Journal of Wuhan University of Technology-Mater. Sci. Ed.. ,vol. 21, pp. 68- 70 ,(2006) , 10.1007/BF02841208
Marta Valášková, Gražyna Simha Martynková, Microporous Cordierite Ceramics Prepared from Clay Mineral Mixtures Containing Vermiculite Journal of Scientific Conference Proceedings. ,vol. 2, pp. 49- 52 ,(2010) , 10.1166/JCP.2010.1010
Z. Weiss, J. Krajíček, L. Smrčok, J. Fiala, A computer X‐ray quantitative phase analysis Journal of Applied Crystallography. ,vol. 16, pp. 493- 497 ,(1983) , 10.1107/S0021889883010882
M. Valášková, J. Zdrálková, G. Simha Martynková, B. Smetana, J. Vlček, S. Študentová, Structural variability of high purity cordierite/steatite ceramics sintered from mixtures with various vermiculites Ceramics International. ,vol. 40, pp. 8489- 8498 ,(2014) , 10.1016/J.CERAMINT.2014.01.060