GROWTH AND STRUCTURE OF COMBUSTION AEROSOLS - FUMED SILICA
GROWTH AND STRUCTURE OF COMBUSTION AEROSOLS - FUMED SILICA
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DOI：
10.1080/02786829008959400
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发表时间：
1990-01-01
影响因子：
5.2
通讯作者：
HURD, AJ
中科院分区：
文献类型：
--
作者：
SCHAEFER, DW;HURD, AJ
基于商用气相二氧化硅粉末的中子、X射线和光散射数据，提出了火焰中动力学生长过程的模型。该模型和数据与聚集成高度分叉的团簇的原始颗粒的存在是一致的。通过映射到动力学模型，确定了决定粉末结构的四个过程：动力学成核、弹道聚合、烧结和扩散限制聚集。
A model is presented for kinetic growth processes in flames, based on neutron, X-ray, and light-scattering data on commercial fumed silica powders. The model and data are consistent with the existence of fractally rough primary particles aggregated into highly ramified clusters. By mapping onto kinetic models, four processes are identified that determine the structure of the powders: kinetic nucleation, ballistic polymerization, sintering, and diffusion-limited aggregation.