Output details
12 - Aeronautical, Mechanical, Chemical and Manufacturing Engineering
University of Manchester : A - Chemical Engineering
Continuous Deposition of a Liquid Thread onto a Moving Substrate. Numerical Analysis and Comparison With Experiments
This paper considers, using simulation and experiment, Direct-Write
printing of silver-laden inks to produce electrically-conducting
tracks, leading to a novel (and highly sustainable) manufacturing
technique for producing electronic circuits. For various
nozzle-substrate stand-off distances and nozzle-substrate tilt angles,
the domain of nozzle flow rates that permits steady state printed
track widths is identified. Instabilities, that break up the
continuous printed tracks, are highly undesirable in this application,
but were avoided with sufficiently high flow rates and low stand-offs.
Vertical, rather than tilted, nozzle configurations were also found to
be better at producing thin tracks necessary for miniaturised
electronic devices.