Feasibility of Using Multilayer Platelets as Toughening Agents
Resource
Materials, 3(1), 1-8
Journal
Materials
Pages
1
Date Issued
2010
Date
2010
Author(s)
Chin, Yuan-Liang
Abstract
It is known that the toughness of brittle ceramics can be improved significantly with the addition of hard platelets. In the present study, platelet-shape multilayer ceramic laminates are utilized as a toughening agent for alumina ceramics. They are prepared by laminating the BaTiO3:-based ceramic tapes. Although the elastic modulus of the BaTiO3-based platelets is lower than that of the alumina matrix, and the platelets are also reactive to alumina at elevated temperatures, the weak platelets are found to exhibit the ability to deflect major matrix cracks by forming a large number of microcrack branches within the platelets, thus achieving the desired toughening effect. © 2010 by the authors.
Type
journal article
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