Dynamics of evaporation of complex nanoparticle mixtures
University of Edinburgh
PhD Supervisor: Dr Jovana RadulovicApplication Deadline: 30/09/2013
Funding Availability: Open to UK/EU/Overseas applicants. Studentships will cover University fees (at UK/EU or overseas rate), plus a stipend for 3.5 years at the enhanced EPSRC rate (£14,640 for 2013/14).
Research Area: Materials & Processes
Project description: Nanoparticles of various
chemical natures have attracted significant research interest over the
last few decades. Metallic nano-oxide in particular have proven to be of
importance mostly due their promising use in improving heat transfer
applications, but also due to potential revolution in numerous
surface/bio-science projects. Evaporation of a liquid droplet is a
fundamental problem with a wide variety of practical applications,
ranging from industrial processes (printing, drying and coating) to
agriculture (crop spraying) and biology (DNA microarray analysis). In
recent years there has been intensive international research effort on
various aspects of droplet evaporation, with a strong emphasis on the
complex solutions. The role played by surfactants in the wetting process
has been extensively studied because of its huge potential
applications. However, nanoparticles can also exhibit a certain degree
of interfacial activity. Additionally, surfactants are often employed to
combat the biggest drawback of nanoparticle dispersion- tendency to
segregate and phase separation, but it is not always obvious how these
two specials interact. While the evaporation of droplets containing
nanoparticles has been largely studied, the understanding of formation
of observed patterns of nanoparticle deposits is an ever-expanding
knowledge frontier with vast potential in numerous industries.
This project is primarily an in-depth experimental investigation of
evaporative behaviour of nanoparticle-based complex fluids with the aim
to reveal the underlying mechanisms of combined wetting and evaporation
processes. A combination of analytical and experimental methods will be
needed to investigate and analyse evaporative behaviour of liquids
containing different nanoparticle species with additives on solid
surfaces of varying hydrophobicity and roughness. The experimental
findings should be quantified by developing suitable mathematical
models; therefore, an ideal candidate would have a strong theoretical
background and some modelling skills. The formation of solid patterns
will be investigated using microscopy techniques.
Eligibility and qualifications: Applicants must be
of outstanding academic merit: a first class or upper second class
honours undergraduate degree (or International equivalent) is the
minimum qualification requirement.
To undertake this research, we are seeking a motivated candidate with a degree in Chemical or Mechanical Engineering or Materials Science. Exceptionally, we will consider a strong candidate with Physical Chemistry background.
Experience in experimental work and an ability to work effectively with researchers are essential.To undertake this research, we are seeking a motivated candidate with a degree in Chemical or Mechanical Engineering or Materials Science. Exceptionally, we will consider a strong candidate with Physical Chemistry background.
Please apply here: www.see.ed.ac.uk/postgraduate/apply
Select the Research Area referred to in the advert and clearly state on your application form which project you are applying for and the relevant supervisor.
Informal Enquiries to: J.Radulovic@ed.ac.uk
Further information: www.eng.ed.ac.uk/drupal/research/IMP
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