Development of bioactive glass-ceramics with high fracture toughness

• Grant number: 12/03072-0
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): April 01, 2012
• Effective date (End): March 31, 2013
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Edgar Dutra Zanotto
• Grantee: Olavo Serafin Bianchin
• Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Glass-ceramics are polycrystalline materials obtained through crystallization of certain glasses. The control of crystallization and chemical composition allows one to obtain glass-ceramics with varied crystalline phases, crystalline fractions, crystal size, thus covering numerous properties. For the development and improvement of these properties, glass-ceramics have been used in numerous environments, such as in the aerospace industry, households, electronic circuits, acoustic systems and even as biomaterials.The main objective of this work is the development of a relatively tough and bioactive glass-ceramic, i.e. that shows a biological response when in contact with body fluids. For this goal, we will devise a new glass formulation with optimized microstructure by heat treatment, and thus obtain desired properties, such as high toughness (KC > 2,5 MPa.m1/2) and a high index of bioactivity (Ib> 3,1).

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOARES, VIVIANE O.; DAGUANO, JULIANA K. M. B.; LOMBELLO, CHRISTIANE B.; BIANCHIN, OLAVO S.; GONCALVES, LIVIA M. G.; ZANOTTO, EDGAR D. New sintered wollastonite glass-ceramic for biomedical applications. CERAMICS INTERNATIONAL, v. 44, n. 16, p. 20019-20027, NOV 2018. Web of Science Citations: 0.