The effect of the nano- bioglass reinforcement on magnesium based composite

Mohammad Khodaei; Farahnaz Nejatidanesh; Mohammad Javad Shirani; Alireza Valanezhad; Ikuya Watanabe; Omid Savabi

doi:10.1016/j.jmbbm.2019.103396

The effect of the nano- bioglass reinforcement on magnesium based composite

J Mech Behav Biomed Mater. 2019 Dec:100:103396. doi: 10.1016/j.jmbbm.2019.103396. Epub 2019 Aug 12.

Authors

Mohammad Khodaei¹, Farahnaz Nejatidanesh², Mohammad Javad Shirani³, Alireza Valanezhad⁴, Ikuya Watanabe⁴, Omid Savabi⁵

Affiliations

¹ Department of Materials Science and Engineering, Golpayegan University of Technology, Golpayegan, Iran. Electronic address: khodaei@gut.ac.ir.
² Dental Materials Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
³ Post graduate student of Prosthodontics, Student Research Committee, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
⁴ Department of Dental and Biomedical Materials Science, Nagasaki University, Nagasaki, Japan.
⁵ Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran. Electronic address: savabi@hotmail.com.

PMID: 31442943
DOI: 10.1016/j.jmbbm.2019.103396

Abstract

Nano-bioceramic particles serving as a reinforcement can improve the mechanical and biological properties of magnesium implants, but they might have some side effects, that must be addressed. In this research, magnesium composites including 10 wt% nano-bioglass (nBG) were fabricated using powder metallurgy (PM10) and spark plasma sintering (SPS10) methods for bone reconstruction purposes. The results of the compression test indicated that the SPS10 sample had higher mechanical properties, in comparison to the PM10 sample, and nBG had more reinforcing effect on the mechanical properties of magnesium matrix. X-ray difractometery indicated that nBG was chemically reacted with magnesium in the PM10 sample, and resulted in some extra phases (MgO and Mg₂Si) formation, while there was no detectable extra phases in the SPS10 sample. However, a higher in vitro degradation rate was observed for PM10 sample, because of multi-phase formation at the magnesium matrix. To inhibit the chemical reaction between magnesium and nBG kinetically, a short time sintering process can be, therefore, recommended.

Keywords: Biomaterials; Composite materials; In-situ reaction; Magnesium; Nano-bioglass.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bone Substitutes / chemistry*
Calorimetry, Differential Scanning
Ceramics*
Compressive Strength
Kinetics
Magnesium / chemistry*
Materials Testing
Metals / chemistry*
Microscopy, Electron, Scanning
Nanocomposites / chemistry*
Particle Size
Porosity
Powders / chemistry
Pressure
Prostheses and Implants
Prosthesis Design
Stress, Mechanical
Time Factors
X-Ray Diffraction

Substances

Bioglass
Bone Substitutes
Metals
Powders
Magnesium