DocumentCode :
2885260
Title :
Effect of Bi2O3 as sintering aid in modifying the NTC characteristics of MnCr2O4 compositions for temperature sensors
Author :
Stella, K.A. ; Krishnankutty, K. ; Dayas, K.R. ; Seema, A.
Author_Institution :
University of Calicut, Department of Chemistry, India
fYear :
2012
fDate :
7-10 March 2012
Firstpage :
301
Lastpage :
304
Abstract :
Densification process of Mn-Cr-O negative temperature coefficient (NTC) ceramic compositions in presence of Bi2O3 as a sintering aid and also as a dopant was studied. Bi2O3 (3.8mole %) decreased the sintering temperature of the phase pure MnxCr3−xO4 compositions and obtained more than 95% of theoretical density. Electrical characteristics of the compositions were evaluated and it is found that Bi2O3 addition improved NTC properties, thus making these more suitable as temperature sensor.
Keywords :
Thermistor; electrical characteristics; sintering aid;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Physics and Technology of Sensors (ISPTS), 2012 1st International Symposium on
Conference_Location :
Pune, India
Print_ISBN :
978-1-4673-1040-6
Type :
conf
DOI :
10.1109/ISPTS.2012.6260953
Filename :
6260953
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2885260
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