Magnesium based amorphous alloys for application as temporary biomaterial

• Grant number: 10/01375-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2010
• End date: April 30, 2011
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Walter José Botta Filho
• Grantee: Guilherme Yuuki Koga
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 05/59594-0 - Properties of amorphous, metastable and nano-structured metallic alloys, AP.TEM

Abstract

The objective of this project is to develop amorphous Mg-based alloys to be applied as temporary biomaterial, that is, to act as a material which can be absorbed by the organism. The alloys to be studied are from the system magnesium - calcium - zinc, and the compositions will be chosen using the topological instability criterion ("lambda criterion"), developed by our group, to select compositions which are good candidates to form amorphous structure under conditions of low cooling rate. The project involves the choice of compositions, production of the different alloys by rapidly solidification process using a "melt-spinning" apparatus or cooling in copper mold, the thermal and structural characterization, by DSC and DRX and the mechanical characterization by compression tests.