| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.2064 |
| 발표분야 |
재료 |
| 제목 |
용액연소합성법으로 제조된 ZrO2 및 3-YSZ 나노입자의 소결거동 |
| 초록 |
The initial stage of sintering of ZrO2 and 3-YSZ (insert size range from 20 to 100nm) nanoparticles synthesized by solution-based flame methods was carried out studied in an aerosol system. By comparing the sintering rate of the particles with those predicted by classical sintering models, it was determined that the mass transport mechanism changed from total surface transport to surface diffusion control with increasing sintering temperature for ZrO2 nanoparticles. As expected, neck growth rate increased considerably with decreasing particle size and increasing sintering temperature, even in the range of nano-size. For the 3-YSZ nanoparticles, the neck growth rate was slower than that for equal sized pure zirconia nanoparticles. It suggested that mass transport from surface of the 3-YSZ particles was retarded by the presence of the yttrium ion during the initial stage of sintering. Under the very dilute particle concentration condition of this study, classical bulk sintering models appear to provide an adequate representation of crystalline nanoparticle sintering rate. |
| 저자 |
김윤성1, 임준혁2, 신용섭3, 김원배4, Amit U. Limaye5, Joseph J. Helble5
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| 소속 |
1요업(세라믹)기술원, 2부경대, 3경성대, 4인성파우더테크, 5Univ. of Connecticut |
| 키워드 |
용액연소합성법; ZrO2; 3-YSZ; 나노; 소결
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| E-Mail |
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| 원문파일 |
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