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2015 | 1 | 1 |

Article title

Core/Clad Phosphate Glass Fibres Containing Iron
and/or Titanium


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Phosphate glasses are novel amorphous biomaterials
due to their fully resorbable characteristics, with
controllable degradation profiles. In this study, phosphate
glasses containing titanium and/or iron were identified
to exhibit sufficiently matched thermal properties (glass
transition temperature, thermal expansion coefficient and
viscosity) which enabled successful co-extrusion of glass
billets to form a core/clad preform. The cladding composition
for the core/clad preforms were also reversed. Fe clad
and Ti clad fibres were successfully drawn with an average
diameter of between 30~50 μm. The average cladding
annular thickness was estimated to be less than 2 μm. Annealed
core/clad fibres were degraded in PBS for a period
of 27 days. The strength of the Fe clad fibres appeared to
increase from 303 ± 73 MPa to 386 ± 45 MPa after nearly
2 weeks in the dissolution medium (phosphate buffered
solution) before decreasing by day 27. The strength of the
Ti clad fibres revealed an increase from 236 ± 53 MPa to
295 ± 61 MPa when compared at week 3. The tensile modulus
measured for both core/clad fibres ranged between
51 GPa to 60 GPa. During the dissolution study, Fe clad fibres
showed a peeling mechanism compared to the Ti clad







Physical description


16 - 5 - 2015
20 - 7 - 2015
30 - 4 - 2015


  • Faculty of Engineering, Division of Materials, Mechanics
    and Structures, University of Nottingham, NG7 2RD
  • Department of Manufacturing and Materials Engineering,
    Kuliyyah of Engineering, International Islamic University
    Malaysia, Malaysia
  • Faculty of Engineering, Division of Materials, Mechanics
    and Structures, University of Nottingham, NG7 2RD
  • Faculty of Engineering, Division of Materials, Mechanics
    and Structures, University of Nottingham, NG7 2RD
  • Faculty of Engineering, Division of Materials, Mechanics
    and Structures, University of Nottingham, NG7 2RD


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