| Presentation | 2017-04-21 Charge storage behavior of zirconia ceramics under DC electric field Yumi Tanaka, Hiroyuki Hara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) is an important load-bearing bioceramic. However, a phenomenon called LTD, in which a phase destabilization occurs under moisture, reduces the reliability of Y-TZP as long-term implants. Since the exact mechanism of LTD is still unclear, this work was directed to evaluate an influence of surface charges of Y-TZP on LTD. Y-TZP were polarized under DC electrical field to vary surface O2- concentrations, which resulted in a successful preparation of Y-TZP surfaces with stable static charges. LTD durability was significantly influenced by the polarity on the surfaces; the negatively-charged surface was proved to show a good LTD durability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Yttria-stabilized zirconia / bioceramic / oxide ion conduction / polarization / surface charges / low temperature degradation |
| Paper # | SDM2017-8,OME2017-8 |
| Date of Issue | 2017-04-13 (SDM, OME) |
| Conference Information | |
| Committee | OME / SDM |
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| Conference Date | 2017/4/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tatsugochou Shougaigakushuu Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Organic molecular devices, silicon device, biotechnology, thin film device, novel material, evaluation method, etc |
| Chair | Naoki Matsuda(AIST) / Tatsuya Kunikiyo(Renesas) |
| Vice Chair | Tatsuo Mori(Aichi Inst. of Tech.) / Takahiro Shinada(Tohoku Univ.) |
| Secretary | Tatsuo Mori(NTT) / Takahiro Shinada(Univ. of Tokyo) |
| Assistant | Hirotake Kajii(Osaka Univ.) / Dai Taguchi(Tokyo Inst. of Tech.) / Hiroya Ikeda(Shizuoka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Organic Molecular Electronics / Technical Committee on Silicon Device and Materials |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Charge storage behavior of zirconia ceramics under DC electric field |
| Sub Title (in English) | Preparation of Y-TZP bioceramics with enhanced LTD durability |
| Keyword(1) | Yttria-stabilized zirconia |
| Keyword(2) | bioceramic |
| Keyword(3) | oxide ion conduction |
| Keyword(4) | polarization |
| Keyword(5) | surface charges |
| Keyword(6) | low temperature degradation |
| 1st Author's Name | Yumi Tanaka |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Sci.) |
| 2nd Author's Name | Hiroyuki Hara |
| 2nd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| Date | 2017-04-21 |
| Paper # | SDM2017-8,OME2017-8 |
| Volume (vol) | vol.117 |
| Number (no) | SDM-7,OME-8 |
| Page | pp.pp.35-39(SDM), pp.35-39(OME), |
| #Pages | 5 |
| Date of Issue | 2017-04-13 (SDM, OME) |