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요업학회지 = Journal of the Korean Ceramic Society v.25 no.4, 1988년, pp.415 - 423   피인용횟수: 1

Ethyl Silicate로부터 Silicon Nitride의 합성(I)
Synthesis of Silicon Nitride from Ethyl Silicate(I)

오일환    (대구공업전문대학 요업과   ); 박금철    (한양대학교 공과대학 무기재료공학과  );
  • 초록

    Mixtures of carbon and silica (about 0.46 ${\mu}{\textrm}{m}$ ) which was synthesized by the hydrolysis of ethyl silicate, the molar ratio of silica/carbon was fixed as 1/10(weight ratio : 1/2), were nitrided in the temperature range 135 $0^{\circ}C$ ~150 $0^{\circ}C$ . The phse of the product Si3N4 was $\alpha$ phase and the morphology was hexagnoal prism and the nitridation reaction was completed in 5 hrs at 150 $0^{\circ}C$ or 7hrs at 145 $0^{\circ}C$ . The reaction rate above 150 $0^{\circ}C$ was diffusion-controlled, following Jander equation. Activation energy Q was derived from the Arrhenius plot and the value was about 101kcal/mol. Axis ratio of Lattice constants(c/a) was 0.726 and unit volume was $\AA$ 3, the larger the molar ratio of carbon/Alkoxide was, the smaller the particle size of $\alpha$ Si3N4 was.


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  • 이 논문을 인용한 문헌 (1)

    1. 1988. "Synthesis of Silicon Nitride from Ethyl Silicate(II) : Effect of Additive on the Nitridation of Silicon Nitride" 요업학회지 = Journal of the Korean Ceramic Society, 25(5): 561~569     

 저자의 다른 논문

  • 오일환 (3)

    1. 1987 "Ethyl Silicate의 가수분해에 의한 단분산 Silica 미립자의 합성(1)" 요업학회지 = Journal of the Korean Ceramic Society 24 (5): 500~506    
    2. 1988 "Ethyl Silicate로부터 Silicon Nitride의 합성(II) : 실화반응에서 첨가제의 영향" 요업학회지 = Journal of the Korean Ceramic Society 25 (5): 561~569    
    3. 1994 "울진도석에 관한 기초적인 연구" 요업학회지 = Journal of the Korean Ceramic Society 31 (1): 47~54    
  • 박금철 (23)

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