Heat Transfer Analysis of the Micron-Scale Agglomerates of TiO2 Precursor during the Detonation Process

Yan Dong Qu; Xiao Jie Li; Hong Hao Yan

doi:10.4028/www.scientific.net/AMR.306-307.1138

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 306-307Heat Transfer Analysis of the Micron-Scale...

Heat Transfer Analysis of the Micron-Scale Agglomerates of TiO₂ Precursor during the Detonation Process

Abstract:

Removing water excessively could result in the formation of sphere-like agglomerates of TiO₂ precursor with 1-2 μm in size, which was used to prepare TiO₂ nanoparticles by detonation method. Different temperature distributions of TiO₂ precursor agglomerates influenced the components of detonation products. In order to obtain the temperature distributions, a mathematic model was introduced to study the heat transfer behaviors of the TiO₂ precursor agglomerates during the detonation process. The temperature history at spherical center with different spherical radiuses and time was also studied. The calculation results were in good agreement with the experimental results. The heat transfer analysis laid the foundation for the synthesis mechanism research of TiO₂ nanoparticles, and it was also helpful to design and optimize experimental procedure.

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Periodical:

Advanced Materials Research (Volumes 306-307)

Pages:

1138-1141

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.306-307.1138

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Online since:

August 2011

Authors:

Yan Dong Qu, Xiao Jie Li, Hong Hao Yan

Keywords:

Agglomerate, Detonation Method, Heat Transfer, Phase Transition, TiO₂ Nanoparticle

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