Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics
Aluminium titanate, Al2TiO5 (AT) with the pseudobrookite structure is the only compound in the alumina-titania system. It is an excellent refractory and thermal shock resistant material due to its relatively low thermal expansion coefficient (1 ×10-6 ºC –1) and high melting point (1860ºC). However,...
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| Format: | Journal Article |
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Trans Tech Publications Inc
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/44527 |
| _version_ | 1848757027102261248 |
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| author | Oo, Zeya Low, It-Meng (Jim) |
| author_facet | Oo, Zeya Low, It-Meng (Jim) |
| author_sort | Oo, Zeya |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Aluminium titanate, Al2TiO5 (AT) with the pseudobrookite structure is the only compound in the alumina-titania system. It is an excellent refractory and thermal shock resistant material due to its relatively low thermal expansion coefficient (1 ×10-6 ºC –1) and high melting point (1860ºC). However, its low mechanical strength, hardness and fracture resistance together with susceptibility to decomposition in the temperature range 900–1200ºC has limited its wider application. In this paper, the innovative tailored design of functionally- graded Al2TiO5 – based ceramics system was presented. This involves the use of a vacuum heat-treatment or die-pressing to form hard graded layers of alumina on Al2TiO5. These hard outer layers will provide hardness and wear resistance to protect the softer but damage resistant underlayers. The results will also explore unresolved issues concerning the effect of graded interfaces on their physical and mechanical performance properties. |
| first_indexed | 2025-11-14T09:21:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-44527 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:21:33Z |
| publishDate | 2011 |
| publisher | Trans Tech Publications Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-445272017-09-13T16:08:23Z Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics Oo, Zeya Low, It-Meng (Jim) functionally graded materials refractory Vickers contacts bonded interface Aluminium titanate, Al2TiO5 (AT) with the pseudobrookite structure is the only compound in the alumina-titania system. It is an excellent refractory and thermal shock resistant material due to its relatively low thermal expansion coefficient (1 ×10-6 ºC –1) and high melting point (1860ºC). However, its low mechanical strength, hardness and fracture resistance together with susceptibility to decomposition in the temperature range 900–1200ºC has limited its wider application. In this paper, the innovative tailored design of functionally- graded Al2TiO5 – based ceramics system was presented. This involves the use of a vacuum heat-treatment or die-pressing to form hard graded layers of alumina on Al2TiO5. These hard outer layers will provide hardness and wear resistance to protect the softer but damage resistant underlayers. The results will also explore unresolved issues concerning the effect of graded interfaces on their physical and mechanical performance properties. 2011 Journal Article http://hdl.handle.net/20.500.11937/44527 10.4028/www.scientific.net/AMR.239-242.171 Trans Tech Publications Inc restricted |
| spellingShingle | functionally graded materials refractory Vickers contacts bonded interface Oo, Zeya Low, It-Meng (Jim) Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title | Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title_full | Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title_fullStr | Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title_full_unstemmed | Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title_short | Indentation Responses of Functionally-Graded Al2TiO5-Based Ceramics |
| title_sort | indentation responses of functionally-graded al2tio5-based ceramics |
| topic | functionally graded materials refractory Vickers contacts bonded interface |
| url | http://hdl.handle.net/20.500.11937/44527 |