Summary:
With the growing need for better implant materials bioglass ceramics have aroused interest because of their ability to bond with tissues. Intrinsically low strength of the former, however, restricts their use for load bearing implant applications.Sodium bio-glass powders were prepared through sol gel route. These were calcined at 8000 C for one hour to expel moisture and residual gases. Rectangular specimens with varying amount of epoxy in sodium bio-glass were prepared by curing under pressure. The modulus of rupture was determined by three-point bend test. Samples were immersed in simulated body fluid (SBF) environment for different time intervals to study the bioactivity. Tissue like growth on the surface of the samples was studied by environmental scanning electron microscopy (ESEM), and, elemental composition present on the surface by energy dispersive x-ray analysis (EDAX). Inductively coupled plasma-atomic emission spectroscopy (ICP-AES) was carried out to observe the change in ionic concentration of simulated body fluid after removal of the samples.

Format:
Pages : 5
Size: 175 kb
Author :Deepak K. Pattanayak, Devesh Srivastava, Himanshu Gupta, B. T. Rao andT. R. Rama Mohan
Powder Metallurgy and Particulate Materials Lab,
Dept. of Metallurgical Engineering and Materials Science

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Evaluation of Epoxy / Sodium Bioglass Ceramic Composites in Simulated Body Fluid

 

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