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http://dx.doi.org/10.4191/KCERS.2008.45.1.845

Expansion Characteristics of the Hydrated Sodium Silicate which Synthesized by Hydrothermal Reaction  

Cho, Ho-Yeon (Department of Materials Science and Engineering, Chungnam National University)
Kong, Yang-Pyo (Korea Institute of Construction Materials)
Suhr, Dong-Soo (Department of Materials Science and Engineering, Chungnam National University)
Publication Information
Journal of the Korean Ceramic Society / v.45, no.12, 2008 , pp. 845-850 More about this Journal
Abstract
Hydrated sodium silicate was synthesized by hydrothermal reaction using anhydrous sodium silicate. The optimum additions of water was 25wt% to make hydrated sodium silicate with homogeneous and purposed water contents. Porous ceramics with homogeneous microstructure and spherical closed pore can be fabricated by elimination of the large pores(a few mm in size) which was formed during first heat treatment through the decomposition of water. Spherical closed pore was formed above $600^{\circ}C$ and the pore size was increased with increasing second heat treatment temperature due to growth of pores. The size of spherical closed pore was varied from 35 to $233\;{\mu}m$ and specific gravity was varied from 0.2 to 1.02 depending on the combinations of the first and second heat treatment temperature.
Keywords
Hydrothermal reaction; Anhydrous sodium silicate; Hydrated sodium silicate; Closed pore; Porous ceramics;
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Times Cited By KSCI : 6  (Citation Analysis)
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1 H. S. Yu, D. H. Yang, K. I. Rhee, and C. K. Lee, "Transformation and Morphology of Crystalline Phases in the Hydrothermal Processing of Amorphous Silica(in Korean)," J. Kor. Ins. Mineral & Energy Res. Eng., 38 [2] 69-75 (2001)
2 S. K. Yang, S. H. Jung, and J. B. Kang, "Fabrication of Porous Ceramics for Microorganism Carrier by Hydrothermal Reaction(in Korean)," J. Kor. Ceram. Soc., 40 [12] 1213-19 (2003)   과학기술학회마을   DOI   ScienceOn
3 B. H. Kim and Y. H. Na, "Characteristics of Porous Wollastonite Ceramics Fabricated by Hydrothermal Synthesis(in Korean)," J. Kor. Ceram. Soc., 32 [8] 893-900 (1995)   과학기술학회마을
4 Y. S. Choi and H. K. Kim, "Research of Incombusitible Low Vacuum Insulating Material Using Silica Gel," Ministry of Commerce, Industry and Energy, 3-13 (2005)
5 T. Fujiu, "Processing and Properties of Cellular Silica Synthesized by Foaming Sol-Gels," J. Am. Ceram. Soc., 73 [1] 85-92 (1990)   DOI
6 J. K. Park and J. D. Lee, "Preparation of Porous Inorganic Materials by Foaming Slurry(in Korean)," J. Kor. Ceram. Soc., 35 [12] 1280-88 (1998)   과학기술학회마을
7 Y. P. Kong, H. Y. Cho, and D. S. Suhr, "Characteristics Changes of the Hydrated Sodium Silicate Depending on Heat Treatment Temperature(in Korean)," J. Kor. Ceram. Soc., 45 [3] 185-89 (2008)   과학기술학회마을   DOI   ScienceOn
8 Y. P. Kong, H. Y. Cho, and D. S. Suhr, "Expansion Characteristics of the Hydrated Sodium Silicate(in Korean)," J. Kor. Ceram. Soc., 45 [1] 54-9 (2008)   과학기술학회마을   DOI   ScienceOn
9 J. S. Woyansky and C. E. Scott, "Processing of Porous Ceramics," J. Am. Ceram. Soc. Bull., 71 [11] 1674-80 (1992)
10 J. Y. Yoon, I. H. Song, D. S. Park, and H. D. Kim, "A Technical Trend of the Porous Material," KIMM, 15 [3] 98-108 (2004)
11 G. Y. Jang, S. R. Kim, K. H. Lee, and J. H. Jung, "Manufacturing Method of Porous Ceramics(in Korean)," J. Kor. Ceram. Soc. Bull., 10 [2] 193-202 (1995)
12 S. M. Han, D.Y. Shin, and S. K. Kang, "Preparation for Porous Ceramics Using Low Grade Clay(in Korean)," J. Kor. Ceram. Soc., 35 [6] 575-82 (1998)
13 Y. P. Kong, S. H. Seo, J. H. Kim, and D. S. Suhr, "Characteristics of Porous Ceramics Depending on Water Content of the Water Glass and Heat Treatment Temperature(in Korean)," J. Kor. Ceram. Soc., 42 [10] 691-7 (2005)   과학기술학회마을   DOI   ScienceOn