Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface
To study relationship between friction and plastic deformation modes of single crystals, wear patterns were analyzed for BaSO4, an orthorhombic crystal having various cleavage faces and slip systems. Upon scanning a sapphire stylus along the b-axis at (0 0 1) face, formation of...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2016-09-01
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| Series: | Tribology Online |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/trol/11/5/11_608/_pdf/-char/en |
| _version_ | 1818569149717151744 |
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| author | Hitoshi Shindo Tatsuya Sasaki Kaoru Hashimoto Masaki Moriya Clara Morita-Imura Kaori Niki |
| author_facet | Hitoshi Shindo Tatsuya Sasaki Kaoru Hashimoto Masaki Moriya Clara Morita-Imura Kaori Niki |
| author_sort | Hitoshi Shindo |
| collection | DOAJ |
| description | To study relationship between friction and plastic deformation modes of single crystals, wear patterns were analyzed for BaSO4, an orthorhombic crystal having various cleavage faces and slip systems. Upon scanning a sapphire stylus along the b-axis at (0 0 1) face, formation of triangular deformation patterns extending outside the wear track were observed with optical microscopy. Atomic force microscopic analysis revealed that the triangular areas were elevated, and the two sides were formed by {2 1 0} cleavage steps, starting within the track, and continued by {1 1 0} slip steps outside the track. Upon scanning with heavier normal loads, lots of {0 1 1} slip steps were formed inside the triangles, presumably due to horizontal compression given by the stylus to the triangular areas isolated from the rest of the surface. Mechanism of the wear pattern formation was proposed. When the stylus was scanned along the a-axis, the wear tracks were segmented into short strips by {1 0 1} slips. Under heavier normal loads, the segment structures were partly destroyed by the stylus, presumably by (0 0 1) slip and cleavage, producing debris on both sides of the track. The changes in deformation patterns under heavier normal loads caused steeper increase in friction curves measured in the two directions. Different deformation modes were activated depending upon the scan directions, normal loads and locations relative to the stylus. |
| first_indexed | 2024-12-14T06:44:20Z |
| format | Article |
| id | doaj.art-2ec045a221f743f6896c4c7b08ed720a |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-12-14T06:44:20Z |
| publishDate | 2016-09-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-2ec045a221f743f6896c4c7b08ed720a2022-12-21T23:13:07ZengJapanese Society of TribologistsTribology Online1881-21982016-09-0111560861310.2474/trol.11.608trolMicro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) SurfaceHitoshi Shindo0Tatsuya Sasaki1Kaoru Hashimoto2Masaki Moriya3Clara Morita-Imura4Kaori Niki5Department of Applied Chemistry, Chuo UniversityDepartment of Applied Chemistry, Chuo UniversityDepartment of Applied Chemistry, Chuo UniversityDepartment of Applied Chemistry, Chuo UniversityDepartment of Applied Chemistry, Chuo UniversityGraduate School of Advanced Integration Science, Chiba UniversityTo study relationship between friction and plastic deformation modes of single crystals, wear patterns were analyzed for BaSO4, an orthorhombic crystal having various cleavage faces and slip systems. Upon scanning a sapphire stylus along the b-axis at (0 0 1) face, formation of triangular deformation patterns extending outside the wear track were observed with optical microscopy. Atomic force microscopic analysis revealed that the triangular areas were elevated, and the two sides were formed by {2 1 0} cleavage steps, starting within the track, and continued by {1 1 0} slip steps outside the track. Upon scanning with heavier normal loads, lots of {0 1 1} slip steps were formed inside the triangles, presumably due to horizontal compression given by the stylus to the triangular areas isolated from the rest of the surface. Mechanism of the wear pattern formation was proposed. When the stylus was scanned along the a-axis, the wear tracks were segmented into short strips by {1 0 1} slips. Under heavier normal loads, the segment structures were partly destroyed by the stylus, presumably by (0 0 1) slip and cleavage, producing debris on both sides of the track. The changes in deformation patterns under heavier normal loads caused steeper increase in friction curves measured in the two directions. Different deformation modes were activated depending upon the scan directions, normal loads and locations relative to the stylus.https://www.jstage.jst.go.jp/article/trol/11/5/11_608/_pdf/-char/endeformation modes, wear patterns, atomic force microscopy, frictional anisotropy, slip systems, baso4 |
| spellingShingle | Hitoshi Shindo Tatsuya Sasaki Kaoru Hashimoto Masaki Moriya Clara Morita-Imura Kaori Niki Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface Tribology Online deformation modes , wear patterns , atomic force microscopy , frictional anisotropy , slip systems , baso4 |
| title | Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface |
| title_full | Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface |
| title_fullStr | Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface |
| title_full_unstemmed | Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface |
| title_short | Micro-Scale Friction and Wear at Orthorhombic BaSO4(0 0 1) Surface |
| title_sort | micro scale friction and wear at orthorhombic baso4 0 thinsp 0 thinsp 1 surface |
| topic | deformation modes , wear patterns , atomic force microscopy , frictional anisotropy , slip systems , baso4 |
| url | https://www.jstage.jst.go.jp/article/trol/11/5/11_608/_pdf/-char/en |
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