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Full-Text Articles in Engineering
Laser Textured Calcium Phosphate Bio-Ceramic Coatings On Ti-6al-4v For Improved Wettability And Bone Cell Compatibility, Sameer R. Paital
Laser Textured Calcium Phosphate Bio-Ceramic Coatings On Ti-6al-4v For Improved Wettability And Bone Cell Compatibility, Sameer R. Paital
Doctoral Dissertations
The interaction at the surfaces of load bearing implant biomaterials with tissues and physiological fluids is an area of crucial importance to all kinds of medical technologies. To achieve the best clinical outcome and restore the function of the diseased tissue, several surface engineering strategies have been discussed by scientific community throughout the world. In the current work, we are focusing on one such technique based on laser surface engineering to achieve the appropriate surface morphology and surface chemistry. Here by using a pulsed and continuous wave laser direct melting techniques we synthesize three dimensional textured surfaces of calcium phosphate …
Synthesis And Scintillation Of Single Crystal And Polycrystalline Rare-Earth-Activated Lutetium Aluminum Garnet, Paul A Cutler
Synthesis And Scintillation Of Single Crystal And Polycrystalline Rare-Earth-Activated Lutetium Aluminum Garnet, Paul A Cutler
Masters Theses
Single crystals with composition Lu3Al5O12 were synthesized using Czochralski and micro-pulling-down melt growth techniques. Polycrystalline ceramics of the same composition were synthesized by vacuum annealing of powders prereacted using a citrate-nitrate combustion technique and by spark-plasma-sintering of powders prereacted using a flame-spray-pyrolysis technique. Single crystals and polycrystalline ceramics are activated with Ce3+ or Pr3+ or doubly activated with Ce3+ and Tb3+ ions. Cerium-doped Czochralski-grown single crystals were compared to cerium-terbium codoped Czochralski-grown and micro-pulling down single crystals. Cerium-terbium codoped single crystals are also compared to similarly-activated polycrystalline ceramics sintered under vacuum using combustion-synthesized prereacted powders. X-ray diffraction analysis and fluorescence …
The Synthesis And Crystal Chemistry Of Ca12al14o33 Doped With Fe2o3, Sabina Nwamaka Ude
The Synthesis And Crystal Chemistry Of Ca12al14o33 Doped With Fe2o3, Sabina Nwamaka Ude
Masters Theses
The crystal chemistry of Fe doped mayenite (Ca12Al14-xFexO33) samples prepared using solid state and sol-gel synthesis techniques were compared. Five samples were prepared using solid state process with varying Fe concentration (x) where x = 0, 0.05, 0.1, 0.25 and 0.3; two sets of samples were made via the sol-gel, the first set was prepared for studying the amount of Fe substituted by varying the Fe concentration where x = 0, 0.05, 0.1, 0.2, 0.3 and 0.4 and the second set was prepared for studying the firing temperature and did not contain Fe additions (x = 0). Samples produced via …