Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple

Akira Kishimoto; Yukari Kamakura; Takashi Teranishi; Hidetaka Hayashi

doi:10.1016/j.matchemphys.2013.02.038

Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple

Akira Kishimoto, Yukari Kamakura, Takashi Teranishi, Hidetaka Hayashi

Research output: Contribution to journal › Article

4 Citations (Scopus)

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	https://doi.org/10.1016/j.matchemphys.2013.02.038
Publication status	Published - May 15 2013

Keywords

Annealing
Ceramics
Diffusion
Oxides

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.matchemphys.2013.02.038

Fingerprint Dive into the research topics of 'Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple'. Together they form a unique fingerprint.

Cite this

@article{98ea4799243a4b698974d533df4138fc,

title = "Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple",

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.",

keywords = "Annealing, Ceramics, Diffusion, Oxides",

author = "Akira Kishimoto and Yukari Kamakura and Takashi Teranishi and Hidetaka Hayashi",

year = "2013",

month = may,

day = "15",

doi = "10.1016/j.matchemphys.2013.02.038",

language = "English",

volume = "139",

pages = "825--829",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier BV",

number = "2-3",

}

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 - Teranishi, Takashi

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 -