Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Boron Compounds from Calcium Borate, Colemanite : Synthesis of Hexagonal Boron Nitride from Boric Oxide(III)

Colemanite 붕산염으로부터 붕소화합물의 제조 : 무수붕산으로부터 육방정 질화붕소의 합성 (III)

  • 지미정 (요업기술원 전자소재기술개발사업단) ;
  • 장재훈 (요업기술원 전자소재기술개발사업단) ;
  • 백종후 (요업기술원 전자소재기술개발사업단) ;
  • 이미재 (요업기술원 전자소재기술개발사업단) ;
  • 임형미 (요업기술원 전자소재기술개발사업단) ;
  • 최병현 (요업기술원 전자소재기술개발사업단)
  • Published : 2004.11.01
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Abstract

This study has been undertaken with objective of studying the mechanism and condition of formation of hexagonal boron nitride from reduction of boric okide in the presence of carbon under nitrogen atmosphere. It was found that the formation of hexagonal boron nitride was started at 1400$^{\circ}C$ and almost completed its conversion at 1550$^{\circ}C$. The morphology of boron nitride synthesized in this study was very fine and platelet. It was considered as reaction pathway of hexagonal boron nitride that boron oxide was reduced to born and evaporated by activated carbon, and then it was reacted with nitrogen.

무수붕산(B$_2$O$_3$)과 활성탄소를 사용하여 질소 분위기에서 육방정 질화붕소(h-BN)을 합성할 때 그 생성조건 및 반응과정을 검토하였다. 육방정 질화붕소의 생성조건은 140$0^{\circ}C$ 이상에서 질화붕소가 합성되기 시작하여 155$0^{\circ}C$에서는 대부분의 합성이 이루어졌고, 그 이상의 온도에서는 생성이 크지 않았음이 확인되었다. 합성된 질화붕소의 입자 형상은 미세한 판상 결정을 나타내었다. 반응 과정은 무수붕산이 탄소에 의하여 환원되어 붕소로 기화됨과 동시에 공존하는 질소 가스와 반응하여 육방정 질화붕소로 합성되는 반응 경로를 따를 것으로 사료된다.

Keywords

References

  1. C. F. Gardinier, 'Physical Properties of Superabrasives', Ceram. Bull., 67 [6] 1006-09 (1998)
  2. M. Hubacek and M. Ueki, 'Chemical Reactions in Hexagonal Boron Nitride System,' J. Solid State Chem., 123 [2] 215-35 (1996) https://doi.org/10.1006/jssc.1996.0171
  3. Y. G. Son, Y. B. Lee, H. C. Park, and K. D. Oh, 'Preparation of Fine Boron Nitride from Decaborane and Ammonia,' J. Kor. Ceram. Soc., 26 [2] 179-86 (1989)
  4. S. P. S. Arya and A. D. Amico, 'Preparation, Properties and Application of Boron Nitride Thin Film,' Thin Solid Films, 157 [2] 267-82 (1988) https://doi.org/10.1016/0040-6090(88)90008-9
  5. H. T. Hwaugi, T. Masamoto, S. Masayosi, Korea Patent, 10-1999- 7000968, Korea (1999)
  6. B. H. Choi, H. M. Lim, M. J. Jee, J. H. Jang, J. H. Baek, and M. J. Lee, 'Studies on Preparation of Boron Compounds from Colemanite Preparation of Boric Acid and Reaction Mechanism (I),' J. Kor. Ceram. Soc., 41 [10] 756-65 (2004) https://doi.org/10.4191/KCERS.2004.41.10.756
  7. S. J. Yoon and A. Jha, 'Vapour-Phase Reduction and the Synthesis of Boron-Based Ceramic Phases: Part II The Synthesis of Hexagonal Boron Nitride Phase,' J. Mater. Sci., 31 2265-77 (1996) https://doi.org/10.1007/BF01152935
  8. A. Aydogdu, 'Production of Boron Nitride,' Ph.D thesis, Middle East Technical University, Ankara, Turkey (1993)
  9. S. Jager, K. Bewilogua, and C.-P. Klages, 'nfrared Spectroscopic Investigations on h-BN and Mixed h/c-BN Thin Films,' Thin Solid Films, 245 [1-2] 50-4 (1994) https://doi.org/10.1016/0040-6090(94)90876-1
  10. V. Cholet, L. Vandenbulcke, J. P. Rouan, P. Baillif, and R. Erre, 'Characterization of Boron Nitride Films Deposited from $BCL_3-NH_3-H_2$ Mixtures in Chemical Vapour Infiltration Conditions,' J. Mater. Sci., 29 1417-28 (1994) https://doi.org/10.1007/BF00368905
  11. S. Kurooka, T. Ikeda, K. Kohama, T. Tanaka, and A. Tanaka, 'Formation and Characterization of BN Films with Ti Added,' Suif. Coat. Tech., 166 [2-3] 111-16 (2003) https://doi.org/10.1016/S0257-8972(02)00823-X
  12. L. Shi, Y. Gu, L. Chen, Y. Qian, Z. Yang, and J. Ma, 'Synthesis and Morphology Control of Nanocrystalline Boron Nitride,' J. Solid State Chem., 177 [3] 721-24 (2004) https://doi.org/10.1016/j.jssc.2003.08.026
  13. L. Chen, Y. Gu, L. Shi, Z. Yang, J. Ma, and Y. Qian, 'A Room-Temperature Approach to Boron Nitride Hollow Spheres,' Solid State Commun., 130 [8] 537-40 (234)
  14. S.J. Yoon and A. Jha, 'Vapour-Phase Reduction and the Synthesis of Boron-Based Ceramic Phases: Part I the Phase Equilibria in the B-C-N-O System,' J Mater. Sci., 30 607-14 (1995) https://doi.org/10.1007/BF00356318
  15. A. Aydogdu and N. Sevinc, 'Carbothermic Formation of Boron Nitride,' J. Eur. Ceram. Soc., 23 [16] 3153-61 (2003) https://doi.org/10.1016/S0955-2219(03)00092-X
  16. C. Suryanarayana and M. G. Norton, 'X-Ray Diffraction a Practical Approach,' Plenum Press, New York, USA (2000)
  17. JCPDS card No. 45-0896