Modelling evaporation and chemical reaction in a multi-component droplet from spray pyrolysis synthesis of mixed metal-oxide nanocomposite films
by S.M. Navid Khatami; Olusegun J. Ilegbusi; Leonid I. Trakhtenberg
International Journal of Mathematical Modelling and Numerical Optimisation (IJMMNO), Vol. 6, No. 2, 2015

Abstract: This paper describes the mathematical modelling of transport and chemical reaction phenomena in a single droplet deposited on a heated substrate by spray pyrolysis. The droplet contains mixed salt solutions of tin chloride (SnCl₄) and indium nitrate (In(NO₃)₃) which react on the substrate to produce mixed oxides (In₂O₃-SnO₂) and water residue. The water residue is subsequently evaporated, leaving a thin film of the mixed oxides. The droplet, containing solvent and precursors is modelled using computational fluid dynamics technique. The various stages of droplet morphology associated with surface energy and evaporation are predicted. The transient distribution is also predicted of the concentration of the various species in the droplet. The results show that homogeneous chemical reaction occurs within 60% of the radial distance from the centre. This in turn results in the deposition of metal oxide within that region while a significant amount of unused reactants remains thereafter.

Online publication date: Tue, 16-Jun-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mathematical Modelling and Numerical Optimisation (IJMMNO):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com