Abstract
Strain-dependent electrical conduction has been observed in the system NiO-CaO. xNiO·(1 - x)CaO solid solutions are fabricated by a traditional solid-reaction method. When the 0.03NiO·0.97CaO solid solution is annealed at 1000°C, excess NiO is excluded and precipitates on the surface or intergrain layers. When compressive stress is applied to the specimen, the electrical conductivity increases with an increase in the applied stress. The magnitude of the conductivity change exceeds 50% during 15 MPa loading at 800°C. The presence of a precipitated NiO layer over the xNiO· (1 - x)CaO phase is suggested to be the origin of the applied stress-dependent electrical conductivity.
| Original language | English |
|---|---|
| Pages (from-to) | 1609-1611 |
| Number of pages | 3 |
| Journal | Journal of the American Ceramic Society |
| Volume | 80 |
| Issue number | 6 |
| Publication status | Published - Jun 1997 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Ceramics and Composites
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Strain-dependent electrical conduction in the system NiO-CaO. / Nakamura, Yoshinobu; Ogawa, Hiroshi; Nakashima, Tetsuya; Kishimoto, Akira; Yanagida, Hiroaki.
In: Journal of the American Ceramic Society, Vol. 80, No. 6, 06.1997, p. 1609-1611.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Strain-dependent electrical conduction in the system NiO-CaO
AU - Nakamura, Yoshinobu
AU - Ogawa, Hiroshi
AU - Nakashima, Tetsuya
AU - Kishimoto, Akira
AU - Yanagida, Hiroaki
PY - 1997/6
Y1 - 1997/6
N2 - Strain-dependent electrical conduction has been observed in the system NiO-CaO. xNiO·(1 - x)CaO solid solutions are fabricated by a traditional solid-reaction method. When the 0.03NiO·0.97CaO solid solution is annealed at 1000°C, excess NiO is excluded and precipitates on the surface or intergrain layers. When compressive stress is applied to the specimen, the electrical conductivity increases with an increase in the applied stress. The magnitude of the conductivity change exceeds 50% during 15 MPa loading at 800°C. The presence of a precipitated NiO layer over the xNiO· (1 - x)CaO phase is suggested to be the origin of the applied stress-dependent electrical conductivity.
AB - Strain-dependent electrical conduction has been observed in the system NiO-CaO. xNiO·(1 - x)CaO solid solutions are fabricated by a traditional solid-reaction method. When the 0.03NiO·0.97CaO solid solution is annealed at 1000°C, excess NiO is excluded and precipitates on the surface or intergrain layers. When compressive stress is applied to the specimen, the electrical conductivity increases with an increase in the applied stress. The magnitude of the conductivity change exceeds 50% during 15 MPa loading at 800°C. The presence of a precipitated NiO layer over the xNiO· (1 - x)CaO phase is suggested to be the origin of the applied stress-dependent electrical conductivity.
UR - http://www.scopus.com/inward/record.url?scp=0031165083&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031165083&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031165083
VL - 80
SP - 1609
EP - 1611
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 6
ER -