Browse > Article
http://dx.doi.org/10.4191/KCERS.2009.46.3.242

Low Temperature Synthesis of Forsterite Powders by the Geopolymer Technique  

Son, Se-Gu (YERAM REEM Research Center)
Lee, Ji-Hyeon (Department of Environmental Engineering, Kangwon National University)
Lee, Sang-Hoon (Department of Environmental Engineering, Hanyang University)
Kim, Young-Do (YERAM REEM Research Center)
Publication Information
Journal of the Korean Ceramic Society / v.46, no.3, 2009 , pp. 242-248 More about this Journal
Abstract
Forsterite is a crystalline magnesium silicate with chemical formula $Mg_2SiO_4$, which has extremely low electrical conductivity that makes it an ideal substrate material for electronics. In this study, forsterite precursors were synthesized with magnesium silicate gels from the mixture of magnesium nitrate solution and various sodium silicate solution by the geopolymer technique. Precursors and heattreated powders were characterized by thermogravimetrical differential thermal analyzer(TG-DTA), X-ray diffractometer(XRD), scanning electron microscopy(SEM), Si magic angle spinning nuclear magnetic resonance(MAS-NMR), transmission electron microscopy(TEM). As the result of analysis about the crystallization behavior by DTA, the synthesized precursors were crystallized in the temperature range of $700^{\circ}C$ to $900^{\circ}C$. The XRD results showed that the gel composition began to crystallize at various temperature. Also, it was found that the sodium orthosilicate based precursors(named as 'FO') began to crystallize at above $550^{\circ}C$. The FO peaks were much stronger than sodium silicate solution based precursors(named as 'FW'), sodium metasilicate based precursors(named as 'FM') at $800^{\circ}C$. TEM investigation revealed that the 100nm particle sized sample was obtained from FO by heating up to $800^{\circ}C$.
Keywords
Geopolymer technique; Forsterite; Nano size; Crystallization behavior;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 M.T.Tsai, 'Preparation and Crystallization of Forsterite Fibrous Gels', J. Eur. Ceram. Soc., 23 1283-91 (2003)   DOI   ScienceOn
2 S.Ni, L.Chou, and J.Chang, 'Preparation and Characterization of Fosterite$(Mg_2SiO_4)$ Bioceramics,' Ceram. Inter., 33 83-8 (2007)   DOI   ScienceOn
3 J. Davidovits, 'Geopolymers and Geopolymeric Materials,' J. Therm. Anal., 35 429-41(1989)   DOI
4 K. Ikeda, K. Onikura, Y. Nakamura, and S. Vedanand, 'Optical Spectra ofg Silicate Gels Prepared by the Geopolymer Technique, with Special Reference to the Low-temperature Formation of Lievenbergite$(Ni_2SiO_4)$,' J. Am. Ceram. Soc., 84 [8] 1717-20 (2001)   DOI   ScienceOn
5 J. Davidovits, 'Inorganic Polymeric New Materials,' J. Therm. Anal., 37 1633-56 (1991)   DOI
6 T. Iwahiro, Y. Nakamura, R. Komatsu, and K. Ikeda, 'Crystallization Behavior and Characteristics of Mullites Formed from Alumina-silica Gels Prepared by the Technique in Acidic Conditions,' J. Eur. Ceram. Soc., 21 2515-19 (2001)   DOI   ScienceOn
7 M. Criado, A. Palomo, and A. Fernandez-Jimenez, 'Alkali Activation of Fly Ashes.Part 1: Effect of Curing Conditions on the Carbonation of the Reaction Products,' Fuel, 84 2048-54 (2005)   DOI   ScienceOn
8 M. B. D. Mitchell, D. Jackson, and P. F. James, 'Preparation and Characterization of Forsterite $(Mg_2SiO_4)$ Aerogels,' J. Non-Cryst. Solids., 225 125-29 (1998)   DOI   ScienceOn
9 K.X. Song and X.M.Chen, 'Phase Evolution and Microwave Dielectric Characteristics of Ti-substituted $Mg_2SiO_4$ Fosterite Ceramics,' Mater. Lett., 62 520-22 (2008)   DOI   ScienceOn
10 M.T.Tsai, 'Effects of Hydrolysis Processing on the Character of Fosterite gel Fibers. Part : Crystallites and Microstructural Evolutions,' J. Eur. Ceram. Soc., 22 1085-94 (2002)   DOI   ScienceOn
11 R. Vallepu, A.M. Fernandez Jimenez, T. Terai, A. Mikuni, A. Palomo, K.J.D. Mackenzie, and K. Ikeda, 'Effect of Synthesis pH on the Preparation and Properties of K-Al-bearing Silicate Gels from Solution,' J. Ceram. Soc. Japan, 114 [7] 624-29 (2006)   DOI
12 A. Palomo, M.W.Grutzeck, and M.T.Blanco, 'Alkali-Activated Fly Ashes-A Cement for the Future,' Cem. Concr, Res., 29 1323-29 (1999)   DOI   ScienceOn
13 M. Criado, A. Fernandez-Jimenez, A.G. de la Torre, M.A.G. Aranda, and A. Palomo, 'An XRD Study of the Effect of the $SiO_2/Na_2O$ Ratio on the Alkali Activation of Fly Ash,' Cem. Concr. Res., 37 671-79 (2007)   DOI   ScienceOn
14 D. Panias, I. P. Giannopoulou, and T. Perraki, 'Effect of Synthesis Parameters on Themechanical Properties of Fly Ash-Based Geopolymers,' Colloids Sur., A301 246-54 (2007)
15 S. G. Son, J. H. Lee, J. M. Lee, and Y. D. Kim, 'Synthesis of Mullite Powder by the Geopolymer Technique,' J. Kor. Ceram. Soc., 45 [5] 303-08 (2008)   과학기술학회마을   DOI   ScienceOn
16 S. G. Son, J. H. Lee, J. M. Lee, and Y. D. Kim, 'Low Temperature Synthesis of Willemite Powder,' J. Kor. Ceram. Soc., 45 [7] 401-04(2008)   과학기술학회마을   DOI   ScienceOn