Log-normal nanograin-size distributions in nanostructured composites
A key challenge in the fabrication of superhard nanocomposite films is how to control the distribution of grain sizes in these materials. High-resolution transmission electron microscopy has been used to measure nanograin-size distributions in the Ti-B-N films with various B contents. The results sh...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Taylor & Francis
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/15930 |
| _version_ | 1848749029469454336 |
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| author | Lu, Chungsheng Lu, Y. Shen, Y. Mai, Y. |
| author_facet | Lu, Chungsheng Lu, Y. Shen, Y. Mai, Y. |
| author_sort | Lu, Chungsheng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A key challenge in the fabrication of superhard nanocomposite films is how to control the distribution of grain sizes in these materials. High-resolution transmission electron microscopy has been used to measure nanograin-size distributions in the Ti-B-N films with various B contents. The results show that the mean grain size decreases with increase of B content and the grain-size distribution conforms to a log-normal function when the hardness approaches a maximum value. The transition from normal to log-normal distributions can be determined by analysis in terms of a minimum information criterion. The origin of a log-normal size distribution probably results from heterogeneity arising from a diffusion-drift process. |
| first_indexed | 2025-11-14T07:14:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-15930 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:14:26Z |
| publishDate | 2008 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-159302017-09-13T16:00:27Z Log-normal nanograin-size distributions in nanostructured composites Lu, Chungsheng Lu, Y. Shen, Y. Mai, Y. A key challenge in the fabrication of superhard nanocomposite films is how to control the distribution of grain sizes in these materials. High-resolution transmission electron microscopy has been used to measure nanograin-size distributions in the Ti-B-N films with various B contents. The results show that the mean grain size decreases with increase of B content and the grain-size distribution conforms to a log-normal function when the hardness approaches a maximum value. The transition from normal to log-normal distributions can be determined by analysis in terms of a minimum information criterion. The origin of a log-normal size distribution probably results from heterogeneity arising from a diffusion-drift process. 2008 Journal Article http://hdl.handle.net/20.500.11937/15930 10.1080/09500830802406237 Taylor & Francis restricted |
| spellingShingle | Lu, Chungsheng Lu, Y. Shen, Y. Mai, Y. Log-normal nanograin-size distributions in nanostructured composites |
| title | Log-normal nanograin-size distributions in nanostructured composites |
| title_full | Log-normal nanograin-size distributions in nanostructured composites |
| title_fullStr | Log-normal nanograin-size distributions in nanostructured composites |
| title_full_unstemmed | Log-normal nanograin-size distributions in nanostructured composites |
| title_short | Log-normal nanograin-size distributions in nanostructured composites |
| title_sort | log-normal nanograin-size distributions in nanostructured composites |
| url | http://hdl.handle.net/20.500.11937/15930 |