Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification
The microstructure and mechanical properties of platinum (Pt) fibers fabricated by unidirectional solidification using the alloy-micro-pulling-down (A-μ-PD) method were investigated using a Universal Testing Machine and Electron Backscattered Diffraction (EBSD). The Pt fiber fabricated at a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/3/216 |
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| author | Yuui Yokota Takayuki Nihei Masao Yoshino Akihiro Yamaji Satoshi Toyoda Hiroki Sato Yuji Ohashi Shunsuke Kurosawa Kei Kamada Akira Yoshikawa |
| author_facet | Yuui Yokota Takayuki Nihei Masao Yoshino Akihiro Yamaji Satoshi Toyoda Hiroki Sato Yuji Ohashi Shunsuke Kurosawa Kei Kamada Akira Yoshikawa |
| author_sort | Yuui Yokota |
| collection | DOAJ |
| description | The microstructure and mechanical properties of platinum (Pt) fibers fabricated by unidirectional solidification using the alloy-micro-pulling-down (A-μ-PD) method were investigated using a Universal Testing Machine and Electron Backscattered Diffraction (EBSD). The Pt fiber fabricated at a growth rate of 10 mm/min was composed of relatively large grains with <100> crystal orientation along the growth direction. The crystal orientation was consistent with the easy axis of the crystal growth on the face-centered-cubic (f.c.c.) structure. On the other hand, the adjacent grains of the Pt fiber fabricated at 50 mm/min were randomly oriented owing to a faster growth rate. In tensile tests, the Pt fibers fabricated by the A-μ-PD method indicated extremely different stress−strain curves compared to the commercial Pt wire. The maximum tensile stress of the Pt fiber reached ~100 MPa, and the Pt fiber ruptured after 58% nominal strain. |
| first_indexed | 2024-04-11T13:22:13Z |
| format | Article |
| id | doaj.art-4e951ad07c624b62855d49313c91ee63 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T13:22:13Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-4e951ad07c624b62855d49313c91ee632022-12-22T04:22:10ZengMDPI AGCrystals2073-43522020-03-0110321610.3390/cryst10030216cryst10030216Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional SolidificationYuui Yokota0Takayuki Nihei1Masao Yoshino2Akihiro Yamaji3Satoshi Toyoda4Hiroki Sato5Yuji Ohashi6Shunsuke Kurosawa7Kei Kamada8Akira Yoshikawa9New Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanC&A Corporation 1-15-9, Ichiban-cho, Aoba-ku, Sendai, Miyagi 980-0811, JapanInstitute for Materials Research, Tohoku University 2-1-1, Katahira, Aoba-Ku, Sendai, Miyagi 980-8577, JapanInstitute for Materials Research, Tohoku University 2-1-1, Katahira, Aoba-Ku, Sendai, Miyagi 980-8577, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanNew Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8579, JapanThe microstructure and mechanical properties of platinum (Pt) fibers fabricated by unidirectional solidification using the alloy-micro-pulling-down (A-μ-PD) method were investigated using a Universal Testing Machine and Electron Backscattered Diffraction (EBSD). The Pt fiber fabricated at a growth rate of 10 mm/min was composed of relatively large grains with <100> crystal orientation along the growth direction. The crystal orientation was consistent with the easy axis of the crystal growth on the face-centered-cubic (f.c.c.) structure. On the other hand, the adjacent grains of the Pt fiber fabricated at 50 mm/min were randomly oriented owing to a faster growth rate. In tensile tests, the Pt fibers fabricated by the A-μ-PD method indicated extremely different stress−strain curves compared to the commercial Pt wire. The maximum tensile stress of the Pt fiber reached ~100 MPa, and the Pt fiber ruptured after 58% nominal strain.https://www.mdpi.com/2073-4352/10/3/216platinumunidirectional solidificationalloy-micro-pulling-down methodmicrostructuremechanical property |
| spellingShingle | Yuui Yokota Takayuki Nihei Masao Yoshino Akihiro Yamaji Satoshi Toyoda Hiroki Sato Yuji Ohashi Shunsuke Kurosawa Kei Kamada Akira Yoshikawa Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification Crystals platinum unidirectional solidification alloy-micro-pulling-down method microstructure mechanical property |
| title | Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification |
| title_full | Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification |
| title_fullStr | Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification |
| title_full_unstemmed | Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification |
| title_short | Microstructure and Mechanical Properties of Platinum Fiber Fabricated by Unidirectional Solidification |
| title_sort | microstructure and mechanical properties of platinum fiber fabricated by unidirectional solidification |
| topic | platinum unidirectional solidification alloy-micro-pulling-down method microstructure mechanical property |
| url | https://www.mdpi.com/2073-4352/10/3/216 |
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