Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy
Electrode posited Ni-W alloys have been investigated in the as-deposited state by transmission electron microscopy in order to investigate the microstructural features in dependence of the tungsten content. Within the tungsten content range from 7 at. up to 12 at., the microstructure is nanocrystall...
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| Format: | Article |
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Elsevier
2009
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| author | Klimenkov, Michael Haseeb, A.S. Md. Abdul Bade, Klaus |
| author_facet | Klimenkov, Michael Haseeb, A.S. Md. Abdul Bade, Klaus |
| author_sort | Klimenkov, Michael |
| collection | UM |
| description | Electrode posited Ni-W alloys have been investigated in the as-deposited state by transmission electron microscopy in order to investigate the microstructural features in dependence of the tungsten content. Within the tungsten content range from 7 at. up to 12 at., the microstructure is nanocrystalline characterized by a bimodal grain size distribution, consisting out of 20 to 200 nm sized grains and also larger grains with several 100 mm characteristic dimension. No clear trend in microstructure formation is visible with W content or deposition conditions in the investigated W content range. Only solid solution phase characteristics were observed. The lattice constant is 0.360 nm for 12 at. W as derived from electron diffraction for the solid solution face centered cubic structure. Larger grains show twinning and stacking faults. Voids with diameter of a few nm were detected along with some multiple twinned particles. indicating high stress level during growth. About 2 at. difference in the alloy composition from grain to grain was measured. (C) 2009 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-06T05:15:08Z |
| format | Article |
| id | um.eprints-5748 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:15:08Z |
| publishDate | 2009 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-57482018-10-16T05:10:21Z http://eprints.um.edu.my/5748/ Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy Klimenkov, Michael Haseeb, A.S. Md. Abdul Bade, Klaus TA Engineering (General). Civil engineering (General) Electrode posited Ni-W alloys have been investigated in the as-deposited state by transmission electron microscopy in order to investigate the microstructural features in dependence of the tungsten content. Within the tungsten content range from 7 at. up to 12 at., the microstructure is nanocrystalline characterized by a bimodal grain size distribution, consisting out of 20 to 200 nm sized grains and also larger grains with several 100 mm characteristic dimension. No clear trend in microstructure formation is visible with W content or deposition conditions in the investigated W content range. Only solid solution phase characteristics were observed. The lattice constant is 0.360 nm for 12 at. W as derived from electron diffraction for the solid solution face centered cubic structure. Larger grains show twinning and stacking faults. Voids with diameter of a few nm were detected along with some multiple twinned particles. indicating high stress level during growth. About 2 at. difference in the alloy composition from grain to grain was measured. (C) 2009 Elsevier B.V. All rights reserved. Elsevier 2009 Article PeerReviewed Klimenkov, Michael and Haseeb, A.S. Md. Abdul and Bade, Klaus (2009) Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy. Thin Solid Films, 517 (24). pp. 6593-6598. ISSN 0040-6090, DOI https://doi.org/10.1016/j.tsf.2009.04.039 <https://doi.org/10.1016/j.tsf.2009.04.039>. https://doi.org/10.1016/j.tsf.2009.04.039 doi:10.1016/j.tsf.2009.04.039 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Klimenkov, Michael Haseeb, A.S. Md. Abdul Bade, Klaus Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title | Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title_full | Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title_fullStr | Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title_full_unstemmed | Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title_short | Structural investigations on nanocrystalline Ni-W alloy films by transmission electron microscopy |
| title_sort | structural investigations on nanocrystalline ni w alloy films by transmission electron microscopy |
| topic | TA Engineering (General). Civil engineering (General) |
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