| Grant number: | 15/07319-8 |
| Support Opportunities: | Regular Research Grants |
| Start date: | February 01, 2016 |
| End date: | July 31, 2018 |
| Field of knowledge: | Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials |
| Principal Investigator: | Eliria Maria de Jesus Agnolon Pallone |
| Grantee: | Eliria Maria de Jesus Agnolon Pallone |
| Host Institution: | Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil |
| City of the host institution: | Pirassununga |
| Associated researchers: | Julieta Adriana Ferreira ; Rafael Vieira de Sousa ; Rubens Andre Tabile |
Abstract
A new concept of extensively studied materials involves nanostructured materials, which can be defined as systems that contain at least one microstructural characteristic with nanometric dimensions. These nanostructures may be responsible for particular characteristics of the nanocomposites in their properties such as increased hardness, fracture mode to change from transgranular intragranular, besides improving the mechanical properties and wear. In this context, the objective of this project is focused on the study and development of nanocomposites zirconia ceramic matrix initially containing nanometric inclusions of alumina using an unconventional and fast route of sintering: sintering flash process. In the flash sintering is assisted by electromagnetic field. In this technique, low electromagnetic field values and a direct current (DC) or alternating current (AC) is applied during the sintering. As a result, one obtains a significantly accelerated sintering rate and a reduction in the ceramic grain growth. Thus, no conventional sintering techniques (such as flash sintering) are promising alternatives for the control of the microstructure of ceramics, using up to 70% less energy during the sintering process. (AU)
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