title: Silica-Based and Borate-Based, Titania-Containing Bioactive Coatings Characterization: Critical Strain Energy Release Rate, Residual Stresses, Hardness, and Thermal Expansion.
abstract: Silica-based and borate-based glass series, with increasing amounts of TiO₂ incorporated, are characterized in terms of their mechanical properties relevant to their use as metallic coating materials. It is observed that borate-based glasses exhibit CTE (Coefficient of Thermal Expansion) closer to the substrate's (Ti6Al4V) CTE, translating into higher mode I critical strain energy release rates of glasses and compressive residual stresses and strains at the coating/substrate interface, outperforming the silica-based glasses counterparts. An increase in the content of TiO₂ in the glasses results in an increase in the mode I critical strain energy release rate for both the bulk glass and for the coating/substrate system, proving that the addition of TiO₂ to the glass structure enhances its toughness, while decreasing its bulk hardness. Borate-based glass BRT3, with 15 mol % TiO₂ incorporated, exhibits superior properties overall compared to the other proposed glasses in this work, as well as 45S5 Bioglass®and Pyrex.
authors.affiliation: Department of Mechanical & Industrial Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada. omaralejandro.rodrig@ryerson.ca.|St. Michael's Hospital, Toronto, ON M5B 1W8, Canada. omaralejandro.rodrig@ryerson.ca.
authors.forename: Omar
authors.initials: O
authors.lastname: Rodriguez
authors.affiliation: Department of Mechanical & Industrial Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada. amatinma@ryerson.ca.|St. Michael's Hospital, Toronto, ON M5B 1W8, Canada. amatinma@ryerson.ca.
authors.forename: Ali
authors.initials: A
authors.lastname: Matinmanesh
authors.affiliation: Department of Mechanical & Industrial Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada. sunjeev.phull@ryerson.ca.
authors.forename: Sunjeev
authors.initials: S
authors.lastname: Phull
authors.affiliation: St. Michael's Hospital, Toronto, ON M5B 1W8, Canada. SchemitschE@smh.ca.|Department of Surgery, University of Western Ontario, London, ON N6A 4V2, Canada. SchemitschE@smh.ca.
authors.forename: Emil H
authors.initials: EH
authors.lastname: Schemitsch
authors.affiliation: Oakville Trafalgar Memorial Hospital, Oakville, ON L6J 3L7, Canada. paulzalzal@gmail.com.|Faculty of Health Sciences, Department of Surgery, McMaster University, Hamilton, ON L8S 4L8, Canada. paulzalzal@gmail.com.
authors.forename: Paul
authors.initials: P
authors.lastname: Zalzal
authors.affiliation: School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin D09 W6Y4, Ireland. owen.clarkin@dcu.ie.
authors.forename: Owen M
authors.initials: OM
authors.lastname: Clarkin
authors.affiliation: Department of Mechanical & Industrial Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada. mpapini@ryerson.ca.
authors.forename: Marcello
authors.initials: M
authors.lastname: Papini
authors.affiliation: Department of Mechanical & Industrial Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada. mtowler@ryerson.ca.|St. Michael's Hospital, Toronto, ON M5B 1W8, Canada. mtowler@ryerson.ca.|Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia. mtowler@ryerson.ca.
authors.forename: Mark R
authors.initials: MR
authors.lastname: Towler
keywords: borate-based glass; coefficient of thermal expansion; enameling; indentation