5ZrSiO4-xCaCO3 혼합계에서 CaCO3첨가량이 CaZrO3와 m-ZrO2의 합성 및 미세구조변화에 미치는 영향

김재원; 이재언; 조창용; 이재현; 정연길; Jae-Won Kim; Jae-Ean Lee; Chang-Yong Jo; Je-hyun Lee; Yeon-Gil Jung

Korean Journal of Materials Research, Vol.13, No.9, 572-580, September, 2003

DOI10.3740/MRSK.2003.13.9.572 Export Citation

5ZrSiO4-xCaCO3 혼합계에서 CaCO3첨가량이 CaZrO3와 m-ZrO2의 합성 및 미세구조변화에 미치는 영향

Influence of Addition Amount of CaCO3on the Synthesizing behavior and Microstructural Evolution of CaZrO3 and m-ZrO2 in 5ZrSiO4-xCaCO3 Mixture System

김재원, 이재언, 조창용 ¹, 이재현 , 정연길 ^†

창원대학교 재료공학과
¹한국기계연구원 내열재료그룹

Jae-Won Kim, Jae-Ean Lee, Chang-Yong Jo¹, Je-hyun Lee , and Yeon-Gil Jung^†

Department of Materials Science and Engineering, Changwon National University, #9 Sarim-dong, Changwon, Kyungnam 641-773, Korea
¹High Temperature Materials Group, Korea Institute of Machinery and Materials, #66 Sangnam-dong, Changwon, 641-010, Korea

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Synthesizing behavior and microstructural evolution of and in a thermal reaction process of -mixtures, where x is 7 and 19, were investigated to determine the addition amount of CaO in CaO::ternary composition. CaZrO-CaSiOprecursor prepared by the mixture of and CaCOin aqueous suspending media was controlled to the acidic (pH=4.0) condition with HCI solution to enhance the thermal reaction. The addition amount of dispersant into the -slip increased with increasing mole ratio of , which was associated with the viscosity of slip. Decarbonation reaction was activated with an increase of the addition amount of , showing different final temperatures in -and -mixtures as about 980 and 116, respectively, for finishing decarbonation reaction. The grain morphology was changed to spherical shape for all samples with an increase of sintering temperature. The grain size and phase composition of the synthesized composites depended on the mixture ratio of Zrsi04 and CacO3 powders, indicating that the main crystals were m-ZrO2 (3 ) and ( 7 ) in $ZrSiO_4$-7CaCO_3$and -mixtures, respectively.

Keywords:thermal reaction;Zircon();Calcium carbonate();synthesis;microstructure

[References]

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Generali E, Baldi G, Ferrari AM, Leonelli C, Manfredini T, Siligardi C, Pellacani GC, Ceramica Informazione No. 358, Faenza Editrice, Faenza (Italy), 1996, p. 16 (1996)
Liang JZ, Tang CY, Li RKY, Wong TT, Metall. Mater., 4(4), 616 (1998)
Dash S, Kamruddin M, Ajikumar PK, Tyagi AK, Raj B, Thermochim. Acta, 363(1-2), 129 (2000)
Hashimoto S, Yamaguchi A, Oya SI, J. Cryst. Growth., 169, 376 (1996)
Roth RS, Dnnis JS, McMurdie HF, Phase Diagrams for Ceramists Vol 1, The American Ceramic Society, Inc., Columbus, Ohio, 1993, p. 231 (1993)
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Trans. Brit. Ceram. Soc., 67, 205 (1968)
Gul'ko O, Kordyuk RA, Dokl. Adad. Nauk SSSR, 142, 639-64 Chem. Tech. Section. Transl., (1962) pp. 6-7 (1962)
Kim JW, Lee JE, Jung YG, Jo CY, Lee JH, Paik U, J. Mater. Res., 18(1), 81 (2003)
Einstein A, Investigation on the theory of Brownian Motion, Matheun Publisher, London, 1986 (1986)
Fullman PL, Measurement of particle sizes in opaque bodies, Tans AIME 197 (1953) pp. 447-452 (1953)
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Wang Y, Thomson WJ, Thermochimica Acta., 225, 383 (1995)
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Mysen BO, Phase Diagrams for Ceramists, National Institute of Standards and Technology, The American Ceramic Soc., 8, 188 (1990) (1990)
Shi Y, Huang XX, Yen DS, Ceram. Int., 23(5), 457 (1997)
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Ewing J, Beruto D, Search AW, J. Am. Ceram. Soc., 62, 580 (1979)

[Related Articles]

[1] Nagayama H, Tetsu To Hagane, 63(10), 1643 (1997)

[2] Yokoyama E, Ooi H, Tetsu To Hagane, 56(6), 454 (1969)

[3] Generali E, Baldi G, Ferrari AM, Leonelli C, Manfredini T, Siligardi C, Pellacani GC, Ceramica Informazione No. 358, Faenza Editrice, Faenza (Italy), 1996, p. 16 (1996)

[4] Liang JZ, Tang CY, Li RKY, Wong TT, Metall. Mater., 4(4), 616 (1998)

[5] Dash S, Kamruddin M, Ajikumar PK, Tyagi AK, Raj B, Thermochim. Acta, 363(1-2), 129 (2000)

[6] Hashimoto S, Yamaguchi A, Oya SI, J. Cryst. Growth., 169, 376 (1996)

[7] Roth RS, Dnnis JS, McMurdie HF, Phase Diagrams for Ceramists Vol 1, The American Ceramic Society, Inc., Columbus, Ohio, 1993, p. 231 (1993)

[8] Qureshi MH, Bretti NH, Science of Ceramics, 4th Joint Meeting with The Netherlands Ceramic Society (1967), ed. Qureshi MH, Bretti NH (1967)

[9] Trans. Brit. Ceram. Soc., 67, 205 (1968)

[10] Gul'ko O, Kordyuk RA, Dokl. Adad. Nauk SSSR, 142, 639-64 Chem. Tech. Section. Transl., (1962) pp. 6-7 (1962)

[11] Kim JW, Lee JE, Jung YG, Jo CY, Lee JH, Paik U, J. Mater. Res., 18(1), 81 (2003)

[12] Einstein A, Investigation on the theory of Brownian Motion, Matheun Publisher, London, 1986 (1986)

[13] Fullman PL, Measurement of particle sizes in opaque bodies, Tans AIME 197 (1953) pp. 447-452 (1953)

[14] Roosen A, Bowen HK, J. Am. Ceram. Soc., 71(111), 970 (1998)

[15] Mulokozi AM, Lugwisha E, Thermochim. Acta, 194, 375 (1992)

[16] Maciejewski M, Baldyaga J, Thermochim. Acta., 92, 105 (1985)

[17] Criado JM, Ortega A, Thermochim. Acta., 195, 163 (1992)

[18] Price D, Fatemi N, Dollimore D, Whitehead R, Thermochim. Acta, 94, 313 (1985)

[19] Topor ND, Tolokonnikova LI, Kadenatsi BM, J. Thermal. Anal., 207, 245 (1981)

[20] Peric J, Kristulovic R, Ferie J, Vacak M, Thermochim. Acta., 207, 245 (1992)

[21] Dubrawski JB, England BM, J. Thermal. Anal., 39, 987 (1993)

[22] Wang Y, Thomson WJ, Thermochimica Acta., 225, 383 (1995)

[23] Kingery WD, Bowen HK, Uhlmann DR, Int. to Ceramics, 2'nd ed., John Wiley & Sons (New York), Chapter 9

[24] Langmuir, J. Am. Chem. Soc., 38, 2263 (1916)

[25] Mysen BO, Phase Diagrams for Ceramists, National Institute of Standards and Technology, The American Ceramic Soc., 8, 188 (1990) (1990)

[26] Shi Y, Huang XX, Yen DS, Ceram. Int., 23(5), 457 (1997)

[27] Keyser WD, Wollast RL, Hansen P, Naessens G, International Symp. Reactivity Solids, 5th, Munich (1964) pp. 658-666 (1964)

[28] Ewing J, Beruto D, Search AW, J. Am. Ceram. Soc., 62, 580 (1979)