Conventional drilling is a multipoint, end cutting tool that involves cutting of a hole into a solid. The present work entailed the use of Electric Discharge Machining (EDM)technique to produce micro-holes in two different materials using copper and brass electrode tubes. The workpiece materials were selected on the basis of their use in biomedical implants and aerospace engineering. Optimization of the factors and their levels were accomplished using L-16 orthogonal array by Taguchi method. It was observed that workpiece material S.S.-316L can be best machined with brass electrode-tube...

Biomaterials have numerous applications in joint replacements, bone plates, ligaments, drug delivery, scaffolds for tissue engineering etc. Wet chemical method is a versatile technique and was used in the present investigation to synthesize Hydroxyapatite from eggshells. Effects of aging time, aging temperature and sintering temperature on structural and morphological properties of synthesized product was analyzed comprehensively. Aging time and temperatures were observed to have profound influence on properties of Hydroxyapatite.

Hydroxyapatite (HAP) is a major mineral constituent of vertebrate bones and teeth. Corals may be used for substitution purposes in biomaterials having many biomedical applications. Corals (sea-shells) of class "Gonipora" having characteristics of natural micro-porous structure were used as a raw material in present investigation. A simple method of converting the corals into HAP powder using wet precipitation method has been developed. Thermogravimetric Analysis (TGA), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were employed...