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| Presentation | 2018-08-10 11:25 Surface composition and chemical bond structure of Zr-based metallic glass Haruto Koriyama, Keisuke Fujimori, Yoshiharu Enta (Hirosaki Univ.), Nozomu Togashi (Adamant Namiki Precision Jewel)  CPM2018-19 Link to ES Tech. Rep. Archives: CPM2018-19 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | It has been reported that the Zr-based bulk metallic glass alloy commonly known as Vit 105 (Zr_{52.5}Cu_{17.9}Ni_{14.6}Al_{10}Ti_{5}) exhibits better corrosion resistance, as compared to the alloy containing no Ti atoms. In this study, to investigate the physical and chemical origins of the corrosion resistance, X-ray photoelectron spectroscopic (XPS) measurements have been carried out for both the Vit 105 and Zr 55 (Zr_{55}Cu_{30}Al_{10}Ni_{5}) alloys. Elemental compositions, chemical bonding states, and thicknesses of the passivation layers on both alloys were obtained from depth profile of core-level spectra. Moreover, exact rate of initial oxidation started from bulk surface without the passivation layer was obtained by real-time XPS. The results demonstrated that main composition of the passivation layers on both alloys is zirconium oxide, with some amount of aluminum oxide and titanium oxide in Vit 105, while there are no presence of copper and nickel in the layers. It was also found that there are almost no differences in the thickness of the passivation layer and the initial oxidation rate between both alloys. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Metallic Glass / Passivation Layer / Elemental Composition / XPS / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 179, CPM2018-19, pp. 53-56, Aug. 2018. | |
| Paper # | CPM2018-19 | |
| Date of Issue | 2018-08-02 (CPM) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CPM2018-19 Link to ES Tech. Rep. Archives: CPM2018-19 |
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| Conference Information | |
| Committee | CPM |
| Conference Date | 2018-08-09 - 2018-08-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hirosaki Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Component Parts and Materials, etc. |
| Paper Information | |
| Registration To | CPM |
| Conference Code | 2018-08-CPM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Surface composition and chemical bond structure of Zr-based metallic glass |
| Sub Title (in English) | |
| Keyword(1) | Metallic Glass |
| Keyword(2) | Passivation Layer |
| Keyword(3) | Elemental Composition |
| Keyword(4) | XPS |
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| 1st Author's Name | Haruto Koriyama |
| 1st Author's Affiliation | Hirosaki University (Hirosaki Univ.) |
| 2nd Author's Name | Keisuke Fujimori |
| 2nd Author's Affiliation | Hirosaki University (Hirosaki Univ.) |
| 3rd Author's Name | Yoshiharu Enta |
| 3rd Author's Affiliation | Hirosaki University (Hirosaki Univ.) |
| 4th Author's Name | Nozomu Togashi |
| 4th Author's Affiliation | Adamant Namiki Precision Jewel Co., Ltd. (Adamant Namiki Precision Jewel) |
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| Speaker | Author-1 |
| Date Time | 2018-08-10 11:25:00 |
| Presentation Time | 20 minutes |
| Registration for | CPM |
| Paper # | CPM2018-19 |
| Volume (vol) | vol.118 |
| Number (no) | no.179 |
| Page | pp.53-56 |
| #Pages | 4 |
| Date of Issue | 2018-08-02 (CPM) |
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