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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/043/0227

    • Keywords

       

      Biodegradable; Mg-based composites; bone implant material; SBF solution.

    • Abstract

       

      Biodegradable materials for orthopaedic implants have gained much attention due to their similar properties to natural bone. Magnesium-based alloys are considered the best biodegradable material for bone substitute materials.However, magnesium alloys have very high corrosion rate. Research has been focused to fabricate and to make their composites to control their corrosion rates in human physiological environment and to develop the ability of formingbone-like apatite layer on their surface. In the present study, Mg–Zn–Mn metal alloys were selected for making their composites with hydroxyapatite (HAp) and bio-glasses. HAp was prepared by the co-precipitation method and bio-glasses(45S5P7) were prepared by the melting and quenching method. Samples from metal–ceramic composites were prepared by the powder metallurgy route in various compositions. Furthermore, samples were characterized for their phases,microstructure, corrosion behaviour, mechanical properties and bioactivity. The composites showed bioactivity in simulated body fluid (SBF) solution and their young’s modulus values were obtained near to the human bone. The degradation properties, as studied in SBF solution, revealed Mg-based alloy composites having approximately 10% bio-active glasses and 10% b-tri-calcium phosphate resulted in the reduction of the corrosion rate.

    • Author Affiliations

       

      POOJA RAI1 RAJ KUMAR CHATURVEDI1 APOORV MISHRA1 VIJAY KUMAR1 VINAY KUMAR SINGH1

      1. Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India

    • Dates

       
      Published
      20 August 2020
      Manuscript received
      13 June 2019
      Accepted
      27 February 2020
      Final version published online
      20 August 2020

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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