Design and characteristics of hydroxyapatites: effect of radiation
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Type of Work7 pages
conference paper and presentation slides (slides available only on the publisher's website)
Citation of Original PublicationJayati Bhavsar, Jayati Bhavsar, Areeba Tufail, Areeba Tufail, Pooja Gautam, Pooja Gautam, Brad Arnold, Brad Arnold, Fow-Sen Choa, Fow-Sen Choa, Lisa Kelly, Lisa Kelly, Brian Cullum, Brian Cullum, Paul Smith, Paul Smith, Ching Hua Su, Ching Hua Su, K. D. Mandal, K. D. Mandal, N. B. Singh, N. B. Singh, "Design and characteristics of hydroxyapatites: effect of radiation", Proc. SPIE 10662, Smart Biomedical and Physiological Sensor Technology XV, 1066205 (14 May 2018); https://doi.org/10.1117/12.2301032
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silicate based hard materials processed with organic flux
ow temperature processing techniques
directional solidification method
High Performance Computing Facilty (HPCF)
characteristics of organic treated material verses coarsened oxide materials
nano and micron sized powders
titanates processed by sintering and grain growth
We have prepared silicate based hard materials and have processed it with organic flux. Because of the bioactivities of hydroxyapatites with tissues, this class of materials have attracted interest for bone applications. We have utilized low temperature processing techniques. Organic melt was used and the directional solidification method to cast the shaped sample. This organic treated material has different characteristics than coarsened oxide materials. Our approach involved low temperature processing using nano and micron sized powders of the material system Na₂OK₂O-CaO- MgO-Ga₂O₃-SiO₂, and titanates were processed by sintering and grain growth. Our results indicate that substitution of gallium and magnesium or titanium with some variation in processing methods have great potential to improve the glassy characteristics without decreasing the mechanical properties of bones. Effect of radiation on bone was studied by exposing with commercially available Cs¹³⁷ gamma ray source. It was observed that electrical resistivity increased due to radiation exposure for this system.