2024-03-29T12:05:49Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/829392021-05-11T14:30:00Zcom_10261_78com_10261_3com_10261_28457col_10261_331col_10261_28462
00925njm 22002777a 4500
dc
Borrell, Amparo
author
Salvador, M. D.
author
Rocha, Victoria G.
author
Fernández, Adolfo
author
Molina, Tamara
author
Moreno Botella, Rodrigo María
author
2013
Full dense alumina + 40 vol.% aluminium titanate composites were obtained by colloidal filtration and fast reaction-sintering of alumina/titania green bodies by spark plasma sintering at low temperatures (1250-1400 °C). The composites obtained had near-to-theoretical density (>99%) with a bimodal grain size distribution. Phase development analysis demonstrated that aluminium titanate has already formed at 1300 °C. The mechanical properties such as Vickers hardness, flexural strength and fracture toughness of bulk composites are significantly higher than those reported elsewhere, e.g. the composite sintered at 1350 °C show values of about 24 GPa, 424 MPa and 5.4 MPa m 1/2, respectively. The improved mechanical properties of these composites are attributed to the enhanced densification and the finer and more uniform nanostructure achieved by non-conventional fast sintering of slip-cast dense green compacts. © 2012 Elsevier Ltd. All rights reserved.
Composites Part B: Engineering 47: 255-259 (2013)
http://hdl.handle.net/10261/82939
10.1016/j.compositesb.2012.11.010
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100003359
Enhanced properties of alumina-aluminium titanate composites obtained by spark plasma reaction-sintering of slip cast green bodies