Citation
Wa. Groen et al., Aging of NTC ceramics in the system Mn-Ni-Fe-O, J EUR CERAM, 21(10-11), 2001, pp. 1793-1796
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN journal
09552219
→ ACNP
Volume
21
Issue
10-11
Year of publication
2001
Pages
1793 - 1796
Database
ISI
SICI code
0955-2219(2001)21:10-11<1793:AONCIT>2.0.ZU;2-T
Abstract
The aging behaviour of negative temperature coefficient ceramics in the sys
tem Mn-Ni-Fe-O has been investigated by electrical resistivity measurements
and magnetic measurements. Comparison is made between samples cooled in ai
r and in a controlled atmosphere in which no oxidation can occur. The resul
ts show that the aging is dependent on composition and the oxidation which
occurs during the cooling down after sintering. (C) 2001 Elsevier Science L
td. All rights reserved.