Project sparks improvements at Filtronic
A
Powdermatrix product story
Edited by the Engineeringtalk editorial team
Dec 20, 2005
Spark project provides data to help Filtronic Comtek improve production processes.
A Spark project has provided data to help Filtronic Comtek improve production processes.
Spark awards are given to fund problem solving, proof-of-concept, technology demonstration and other development activities for companies that are members of Powdermatrix, the Faraday Partnership responsible for promoting advanced ceramics and powder technology.
The main product in Filtronic's ceramic range must have a specific electronic property, temperature coefficient of resonant frequency or TCf, with a value close to zero.
The ceramic is manufactured by mixing four powders, which introduces potential batch variations in TCf and can cause lengthy product lead times.
The Spark project helped assess process reproducibility by calling on expertise at Ceram to analyse the zeta potential of powder suspensions and optimum dispersion conditions for powders and mixes in the process.
Using a zeta probe to assess dispersion levels, Ceram was able to suggest a process route that involved the separate mixing of two well dispersed materials and subsequently adding the mixture to a suspension of the other two components.
Subsequent production tests at Filtronic showed the approach has the potential to improve powder processing and overall product reproducibility.
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