JOURNAL BROWSE
Search
Advanced SearchSearch Tips
An Experimental Study on Composition Characteristics of SiO/TiO/Multicomponent Particle Generated in a Coflow Diffusion Flame
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Experimental Study on Composition Characteristics of SiO/TiO/Multicomponent Particle Generated in a Coflow Diffusion Flame
Kim, Tae-O; Seo, Jeong-Su; Choe, Man-Su;
  PDF(new window)
 Abstract
Chemical compositions of polydisperse SiO/TiOmulticomponent aggregates were measured for different heights from the burner surface and different mobility diameters of aggregates. SiO/TiOmulticomponent particles were generated in a hydrogen/oxygen coflow diffusion flame from two sets of precursors: TTIP(titanium tetraisopropoxide), TEOS(tetraethylorthosilicate). To maintain 1:1 mole ratio of TTIP:TEOS vapor, flow rate of carrier gas was fixed at 0.6lpm for TTIP, at 0.1lpm for TEOS. In-situ sampling probe was used to supply particles into DMA(differential mobility analyzer) which was calibrated with using commercial DMA(TSI, model 3071A) and classifying monodisperse multicomponent particles. Classified monodisperse particles were collected with electrophoretic collector. The distributions of composition from particles to particle were determined using EDS(energy dispersive spectrometry) coupled with TEM(transmission electron microscope). The chemical(atomic) compositions of classified monodisperse particle were obtained for different heights; z=40mm, 60mm, 80mm. The results suggested that the chemical(atomic) composition of SiOdecreased with the height from burner surface and the composition of SiOand TiOapproached to the value of 1 to 1 fat downstream. It is also found that the composition of SiOdecreases as the mobility diameter of aggregate increases.
 Keywords
Flame Synthesis;Chemical Composition;Composite Nanoparticle;Differential Mobility Analyzer;Energy Dispersive Spectrometry;
 Language
Korean
 Cited by
1.
산소부화를 통한 화염온도 변화에 따른 연소합성된 TiO2 나노입자의 결정구조 변화,이교우;

대한기계학회논문집B, 2006. vol.30. 7, pp.692-699 crossref(new window)
2.
수소 확산화염에서 화염온도가 TiO2 나노입자의 합성에 미치는 영향,이교우;이승복;이종수;배귀남;

대한기계학회논문집B, 2005. vol.29. 9, pp.1013-1021 crossref(new window)
 References
1.
Mezey, E.J., 1996, 'Pigments and reinforcing agents,' in Powell, C. F., Oxley, J.H. and Bocker, J.M. Jr.(Eds), 'Vapor Deposition,' Wiley, New York, pp. 423-451

2.
Freudenberg, B. and Mocellin, A., 1987, 'Aluminum Titante Formation by Solid State Reaction of Coarse $Al_2O_3\;and\;TiO_2$ Powders,' J. Am. Ceram. Soc., Vol. 70, p.33

3.
Backer, M.R., Cavender, R., Elder, M.L., Jones, P.C. and Murphy, J.A., 1991, 'Methods of Manufacturing Optical Waveguide Fiber With Titania-silica Outer Cladding,' U.S. Patent Number 5,067,975

4.
Hung, 1992, 'Formation of Ceramic Oxide Powders in Flame,' Ph. D. Dissertation Thesis, The Jones Hopkins University

5.
Ehrman, S.H., Fridlander, S.K. and Zachaiah, M.R., 1998, 'Characteristics of $SiO_2/TiO_2$ Nanocomposite Particles,' J. of Aerosol Sci. Vol.29, pp. 687-706 crossref(new window)

6.
Seto, T., Hirota, A., Fujimoto,T., Shimada, M. and Okuyama, K., 1997, 'Sintering of Polydisperse Nanometer-Sized Agglomerates,' Aerosol Science and Technology, Vol. 27, pp. 422-438 crossref(new window)

7.
Jung, C., Han, B., Ahn, K. H., Choi, M., and Lee, J. S., 1999, 'Measurement of Particle Size Distribution during Flames Synthesis Using in-situ Sampling Probe,' J. of Aerosol Sci., Vol.30, pp. s351-s352 crossref(new window)

8.
손성혁, 육세진, 안강호, 최만수, 2000, '$H_2/O_2$ 확산화염에서 전기수력학적 방법과 증발기에 의해 발생된 입자의 성장 비교에 관한 실험적 연구,' 춘계학술대회논문집 B, pp. 168-173