TY - GEN
T1 - Effect of multimode and single-mode microwave processing of anisotropic grain growth of CuFeO 2
AU - Fukushima, Jun
AU - Takiawa, Hirotsugu
N1 - Funding Information:
This work was supported by a JSPS Grant-m-Aid for Scientific Research (S) No. JP17H06156.
Publisher Copyright:
© 2018 IEICE
PY - 2019/1/16
Y1 - 2019/1/16
N2 - the authors verified an anisotropic grain growth mechanism of CuFeO 2 in microwave processing by comparative experiments using multimode and single-mode microwave irradiation furnace. Anisotropic grain growth of CuFeO 2 was promoted in multimode processing with continuous wave, but not with pulse wave. On the other hand, in single-mode processing, pulse wave was promoted anisotropic grain growth. In microwave E-field irradiation, it is considered that anisotropic grain growth was promoted by increasing the solid phase diffusion due to electric fields increase around the powder interface. In microwave H-field irradiation, it is considered that local heating around the powder interface resulted in diffusion promotion and anisotropic grain growth was occurred.
AB - the authors verified an anisotropic grain growth mechanism of CuFeO 2 in microwave processing by comparative experiments using multimode and single-mode microwave irradiation furnace. Anisotropic grain growth of CuFeO 2 was promoted in multimode processing with continuous wave, but not with pulse wave. On the other hand, in single-mode processing, pulse wave was promoted anisotropic grain growth. In microwave E-field irradiation, it is considered that anisotropic grain growth was promoted by increasing the solid phase diffusion due to electric fields increase around the powder interface. In microwave H-field irradiation, it is considered that local heating around the powder interface resulted in diffusion promotion and anisotropic grain growth was occurred.
KW - Diffusion processes
KW - Magnetic materials
KW - Materials processing
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U2 - 10.23919/APMC.2018.8617648
DO - 10.23919/APMC.2018.8617648
M3 - Conference contribution
AN - SCOPUS:85061801853
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 1630
EP - 1632
BT - 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th Asia-Pacific Microwave Conference, APMC 2018
Y2 - 6 November 2018 through 9 November 2018
ER -