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Article
Synthesis, Characterization and Fabrication of NTC Thick Film Thermistor Using Lead Free Glass Frit
Author(s)
Shweta Jagtap1, Sunit Rane2* and Suresh Gosavi3
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DOI:10.17265/2161-6213/2016.11-12.003
Affiliation(s)
1. Department of Instrumentation Science, Savitribai Phule Pune University, Pune 411007, India
2. Renewable Energy and Sensor Materials Laboratory, Centre for Materials for Electronics Technology (C-MET), Panchawati, Off. Dr. Bhabha Road, Pune 411008, India
3. Department of Physics, Savitribai Phule Pune University, Pune 411007, India
ABSTRACT
Thermistors are important and attractive in microelectronic and opto- electronic systems due to their unique thermoelectric properties and their applications in air flow sensor, IR detectors, temperature sensors etc. In the present study, mixed transition manganite semiconducting ceramics with spinel structures are used for the preparation of negative temperature co-efficient (NTC) ceramic thermistor. Here, we report the preparation of NTC powders by co-precipitation of chlorides of Mn, Co, Ni and its lead free thick film thermistors. The synthesized NTC powders as well as its thick films were characterized by TGA, XRD, and SEM. The prepared thick film thermistors showed thermistor constant (β) in the range 3,562-4,334 K over the temperature range of 25-250 ºC.
KEYWORDS
NTC thermistor, lead free, thick film, thermistor constant.
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