Premium
Growth of zirconia particles made by flame spray pyrolysis
Author(s) -
Mueller Roger,
Jossen Rainer,
Kammler Hendrik K.,
Pratsinis Sotiris E.,
Akhtar M. Kamal
Publication year - 2004
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.10272
Subject(s) - agglomerate , fourier transform infrared spectroscopy , particle size distribution , particle (ecology) , scanning electron microscope , cubic zirconia , pyrolysis , materials science , particle size , thermal spraying , analytical chemistry (journal) , transmission electron microscopy , mineralogy , chemical engineering , chemistry , composite material , ceramic , nanotechnology , chromatography , organic chemistry , coating , oceanography , engineering , geology
The growth of ZrO 2 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. © 2004 American Institute of Chemical Engineers AIChE J, 50: 3085–3094, 2004