Barium titanate-based PTCR thermistor fibers: Processing and properties

Barium titanate-based thermistors in the shape of fine rods between 500 and 150μm in diameter have been prepared via thermoplastic powder extrusion. Processing of the filaments is complicated by their large surface area-to-volume ratio which results in the volatilization of components during sinteri...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. A. Physical. 2007-04, Vol.135 (2), p.394-404
Main Authors: Wegmann, Markus, Brönnimann, Rolf, Clemens, Frank, Graule, Thomas
Format: Article
Language:English
Subjects:
BaTiO3 and titanates
Extrusion
Fibers
PTC thermistors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Barium titanate-based thermistors in the shape of fine rods between 500 and 150μm in diameter have been prepared via thermoplastic powder extrusion. Processing of the filaments is complicated by their large surface area-to-volume ratio which results in the volatilization of components during sintering. Due to their negligible size and thermal mass, these ultra-small thermistors exhibit much faster responses to changes in their operating conditions than millimeter-scale positive temperature coefficient of resistivity (PTCR) elements.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2006.08.008