High toughness glass-ceramics in the MgO-Al2O3-SiO2 system.

• Grant number: 11/22936-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2012
• End date: June 30, 2013
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Edgar Dutra Zanotto
• Grantee: Lívia Maria Garcia Gonçalves
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The main purpose of this project is to obtain relatively tough glass-ceramics (KIc>2.0 MPa.M1/2) of the MgO-Al2O3-SiO2 system, with small crystal size (1-10 microns) and crystallized fraction up to 70% (most oxide glasses exhibit KIC< 0.7, and traditional glass-ceramics exhibit KIC in the range 1.0 - 1.5 MPa.m1/2). Different glass compositions of the MgO-Al2O3-SiO2 system will be designed with ZrO2 and/or TiO2 as nucleating agents. We intend to contribute for the development of high strength and high toughness glass-ceramics.

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. (10/15635-3, 12/03072-0, 07/08179-9, 13/07793-6, 11/22936-2, 10/18947-6)