Synthesis of Solid, Spherical Zirconia Particles by Spray Pyrolysis

Shi‐Chang ‐C Zhang, Gary Lynn Messing, Michael Borden

Research output: Contribution to journalArticle

150 Citations (Scopus)

Abstract

A model is used to predict solid particle formation during spray pyrolysis by correlating droplet shrinkage before salt precipitation with its relative solution saturation. For the rapid drying conditions and droplet size of ∼ 10 μm, which are characteristic of conventional spray pyrolysis, solid salt particles are formed when a droplet's initial relative solution saturation is ∼ 10−2 and the precipitated salt is sufficiently permeable to permit evolution of the remaining solvent after precipitation. It is proposed that this concentration allows the drying droplet more time and a shorter diffusion distance in which to maintain chemical homogeneity before precipitation. Using these concepts it is demonstrated that zirconyl chloride (ZrOCI2· 8H2O) and zirconyl hydroxychloride (ZrO(OH)CI) are excellent zirconium salts for solid zirconia particle synthesis by spray pyrolysis.

Original languageEnglish (US)
Pages (from-to)61-67
Number of pages7
JournalJournal of the American Ceramic Society
Volume73
Issue number1
DOIs
StatePublished - Jan 1 1990

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Spray pyrolysis
Zirconia
pyrolysis
spray
droplet
Salts
salt
Saturation (materials composition)
Drying
saturation
Zirconium
homogeneity
Chlorides
chloride
particle
zirconium oxide
drying

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Zhang, Shi‐Chang ‐C ; Messing, Gary Lynn ; Borden, Michael. / Synthesis of Solid, Spherical Zirconia Particles by Spray Pyrolysis. In: Journal of the American Ceramic Society. 1990 ; Vol. 73, No. 1. pp. 61-67.
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Synthesis of Solid, Spherical Zirconia Particles by Spray Pyrolysis. / Zhang, Shi‐Chang ‐C; Messing, Gary Lynn; Borden, Michael.

In: Journal of the American Ceramic Society, Vol. 73, No. 1, 01.01.1990, p. 61-67.

Research output: Contribution to journalArticle

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