Abstract
Interdiffusion between the perovskite CaTiO3 and SrTiO 3 diffusion couple was investigated in an annealing method using 24-GHz MMW irradiation as the heating source. Interdiffusion was enhanced by MMW irradiation, and the apparent activation energy for interdiffusion decreased 54%, compared with conventional furnace heating. The intrinsic diffusions for both Ca2+ and Sr2+ were also enhanced, although their relative degrees of enhancement differed, partly as a result of differences in MMW absorptivity between the two ceramics. The observed isothermal diffusion enhancement could be ascribed to a nonthermal effect, apart from the differential degree of enhancement between the transport species.
| Original language | English |
|---|---|
| Pages (from-to) | 825-829 |
| Number of pages | 5 |
| Journal | Materials Chemistry and Physics |
| Volume | 139 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - May 15 2013 |
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Keywords
- Annealing
- Ceramics
- Diffusion
- Oxides
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple. / Kishimoto, Akira; Kamakura, Yukari; Teranisi, Takasi; Hayashi, Hidetaka.
In: Materials Chemistry and Physics, Vol. 139, No. 2-3, 15.05.2013, p. 825-829.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple
AU - Kishimoto, Akira
AU - Kamakura, Yukari
AU - Teranisi, Takasi
AU - Hayashi, Hidetaka
PY - 2013/5/15
Y1 - 2013/5/15
N2 - Interdiffusion between the perovskite CaTiO3 and SrTiO 3 diffusion couple was investigated in an annealing method using 24-GHz MMW irradiation as the heating source. Interdiffusion was enhanced by MMW irradiation, and the apparent activation energy for interdiffusion decreased 54%, compared with conventional furnace heating. The intrinsic diffusions for both Ca2+ and Sr2+ were also enhanced, although their relative degrees of enhancement differed, partly as a result of differences in MMW absorptivity between the two ceramics. The observed isothermal diffusion enhancement could be ascribed to a nonthermal effect, apart from the differential degree of enhancement between the transport species.
AB - Interdiffusion between the perovskite CaTiO3 and SrTiO 3 diffusion couple was investigated in an annealing method using 24-GHz MMW irradiation as the heating source. Interdiffusion was enhanced by MMW irradiation, and the apparent activation energy for interdiffusion decreased 54%, compared with conventional furnace heating. The intrinsic diffusions for both Ca2+ and Sr2+ were also enhanced, although their relative degrees of enhancement differed, partly as a result of differences in MMW absorptivity between the two ceramics. The observed isothermal diffusion enhancement could be ascribed to a nonthermal effect, apart from the differential degree of enhancement between the transport species.
KW - Annealing
KW - Ceramics
KW - Diffusion
KW - Oxides
UR - http://www.scopus.com/inward/record.url?scp=84875932244&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875932244&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2013.02.038
DO - 10.1016/j.matchemphys.2013.02.038
M3 - Article
AN - SCOPUS:84875932244
VL - 139
SP - 825
EP - 829
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
SN - 0254-0584
IS - 2-3
ER -