Growth of zirconia particles made by flame spray pyrolysis

被引：81

作者：

Mueller, R

Jossen, R

Kammler, HK

Pratsinis, SE ^{[1
]}

机构：

[1] ETH, Swiss Fed Inst Technol, Particle Technol Lab, Dept Mech & Proc Engn, CH-8092 Zurich, Switzerland

[2] Millennium Chem Inc, Res Ctr, Glen Burnie, MD 21060 USA

来源：

AICHE JOURNAL | 2004年 / 50卷 / 12期

关键词：

coagulation-sintering; aerosol dymanics; thermophoresis; agglomerate and primary particles; nanoparticles;

D O I：

10.1002/aic.10272

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The growth of ZrO2 particles in spray flames is studied at production rates of 100 and 300 g/h by thermophoretic sampling (TS) and image analysis of transmission electron microscope (TEM) micrographs. At each TS location, the corresponding temperature of the particle-laden spray flame is measured along the centerline by Fourier transform infrared (FTIR) spectroscopy. The product powder is analyzed by nitrogen adsorption and TEM. The measured evolution of primary particle size distribution is presented and quantitatively explained, accounting for aerosol coagulation and sintering. The evolution of the average agglomerate size and number of primary particles per agglomerate is calculated and compared to TEM micrographs. (C) 2004 American Institute of Chemical Engineers.

引用

页码：3085 / 3094

页数：10