Microstructure of Er2O3 Coating Layer of Hydrogen Penetration Control

Takayuki Shinkawa; Satoshi Sunada; Yoshimitsu Hishinuma; Teruya Tanaka; Takeo Muroga; Susumu Ikeno; Kenji Matsuda

doi:10.4028/www.scientific.net/AMR.922.667

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Microstructure of Er2O3 Coating Layer of Hydrogen...

Microstructure of Er₂O₃Coating Layer of Hydrogen Penetration Control

Abstract:

Erbium oxide (Er₂O₃) was shown to be a high potential candidate for tritium penetration barrier and electrical insulator coating for advanced breeding blanket systems such as liquid Li, Li-Pb or molten-salt blankets. Recently, Hishinuma et. al. succeeded to form Er₂O₃ coating layer on large interior surface area of metal pipe using Metal Organic Chemical Vapor Deposition (MOCVD) process. In this work, Er₂O₃coating layer of hydrogen penetration control on stainless steel 316 (SUS 316) substrate have been investigated to the effect of hydrogen penetration and using SEM, TEM and SAED patterns. Er₂O₃coating layer of before hydrogen penetration was granular structures from SEM observation. Er₂O₃ coating layer was columnar grains from TEM observation. TEM image and SAED patterns obtained from Er oxide film can be understood that the growth direction of Er₂O₃ film was [110].

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Periodical:

Advanced Materials Research (Volume 922)

Pages:

667-670

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.922.667

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Online since:

May 2014

Authors:

Takayuki Shinkawa*, Satoshi Sunada, Yoshimitsu Hishinuma, Teruya Tanaka, Takeo Muroga, Susumu Ikeno, Kenji Matsuda

Keywords:

Er₂O₃, MOCVD Process, SEM Observation, TEM Observation

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References

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