News

NEWS

Lecture 14th August 2018

Great Exhibition of North, Newcastle Upon Tyne, UK

I will be delievering a lecture on smart technology and it's benefit for general public on 14th August 2018 at the great exhibition of north. More information can be found here.

Invited Talk 21st August 2018

Krakow, Poland

I have been invited to give a talk on advance functional materials for sensing and actuation application at International Conference on Advanced Structural and Functional Materials 2018. The Conference will be held in Krakow Poland.

Workshop 17th-21st September 2018

Nairobi, Kenya

I will be part of a delegation from Northumbria University to deliever a workshop on Advance Manufacturing Technology in Nairobi, Kenya.

New Article Published

A new article on manufacturing of piezoelectric composites has been published in Journal of Manufacturing and Materials Processing.


Title: Fabrication of Piezoelectric Composites Using High-Temperature Dielectrophoresis


Abstract:

In this paper, we present a method to create a highly sensitive piezoelectric quasi 1–3 composite using a thermoplastic material filled with a piezoelectric powder. An up-scalable high-temperature dielectrophoresis (DEP) process is used to manufacture the quasi 1–3 piezoelectric polymer-ceramic composites. For this work, thermoplastic cyclic butylene terephthalate (CBT) is used as a polymer matrix and PZT (lead zirconium titanate) ceramic powder is chosen as the piezoelectric active filler material. At high temperatures, the polymer is melted to provide a liquid medium to align the piezoelectric particles using the DEP process inside the molten matrix. The resulting distribution of aligned particles is frozen upon cooling the composite down to room temperature in as little as 10 min. A maximum piezoelectric voltage sensitivity (g33) value of 54 ± 4 mV·m/N is reported for the composite with 10 vol% PZT, which is twice the value calculated for PZT based ceramics.


Publisher: MDPI

Full Text:  link

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