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- Kese, K. O. (author)
Effect of ageing on the electrical resistivities of (Ba0.69Pb0.31)Ti-3 PTCR ceramic thermistors
- Article/chapterEnglish2005
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- Elsevier BV,2005
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kth-14596
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-14596URI
- https://doi.org/10.1016/j.ceramint.2004.06.021DOI
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- Language:English
- Summary in:English
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- QC 20100525
- The electrical resistivity of (Ba0.69Pb0.31)TiO3 PTCR ceramic thermistors aged at temperatures of 175, 200, 250 and 300 degrees C, respectively, were measured. When the samples were aged at temperatures of 175 and 200 degrees C, room-temperature resistivity decreased at the initial ageing stage, and then increased with the ageing time. The samples displayed a monotonous rise of the room-temperature resistivity when the ageing treatments were performed at 250 and 300 degrees C. PTCR effects showed different characteristics after different ageing treatments. These ageing characteristics were analyzed by considering interior oxidation and reduction reactions.
Subject headings and genre
- electrical properties
- thermistors
- (Ba0.69Pb0.31)TiO3
- ageing
- oxidation
- reduction
- donor-doped batio3
Added entries (persons, corporate bodies, meetings, titles ...)
- Li, Z. C. (author)
- Bergman, BillKTH,Keramteknologi(Swepub:kth)u1bg91kj (author)
- KTHKeramteknologi (creator_code:org_t)
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- In:Ceramics International: Elsevier BV31:3, s. 375-3780272-88421873-3956
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