Title :
Borosilicate fiber reinforced aluminum matrix composite for wound healing and bone regeneration implants
Author_Institution :
Engineering and Materials Science Dept. German University in Cairo, GUC
Abstract :
Aluminum metal matrix composite is produced via new emerging processing. Direct metal oxidation, DIMOX, is applied on aluminum alloy 6xxx to produce alumina phase intrinsically reinforce residual aluminum. Parametric study focused on temperature, time and alloying elements are controlled. Alloying elements addition established by the addition of boric acid at different percentage 2, 5, 10 and 25 wt. %. The control of shape and size of composite constituents is established via rheocasting at 700°C. The control of porosity produced Aluminum foam reinforced with alumina and aluminum borosilicate bulk fiber and micro fibers. In addition, Aluminum borosilicate Nano fibers dispersed in residual aluminum is controlled to produce coating on aluminum metal matrix composite. Microstructural characterization, with energy dispersive X-ray spectroscopy is applied along with mechanical characterization. Modulus of rupture reveals the effect of addition of boric acid in DIMOX and rheocasting. The application of aluminum borosilicate coating is recommended for wound healing and bone regeneration implants.
Keywords :
X-ray chemical analysis; alloying additions; aluminium alloys; biomedical materials; bone; borosilicate glasses; calcium compounds; casting; coatings; elastic moduli; fracture; glass fibre reinforced composites; mechanical alloying; metal foams; nanocomposites; nanofabrication; nanofibres; nanomedicine; nanoporous materials; oxidation; phosphosilicate glasses; porosity; potassium compounds; prosthetics; sodium compounds; tissue engineering; wounds; DIMOX; Na2O-K2O-MgO-CaO-B2O3-SiO2-P2O5; alloying elements addition; alumina phase; aluminum alloy 6xxx; aluminum borosilicate nanofibers; aluminum foam; bone regeneration implants; boric acid; borosilicate fiber reinforced aluminum matrix composite; coating; direct metal oxidation; energy dispersive X-ray spectroscopy; mechanical characterization; microfibers; microstructural characterization; porosity; residual aluminum; rheocasting; rupture modulus; temperature 700 degC; wound healing; Aluminum; Bones; Glass; Implants; Optical fiber dispersion; Aluminum boric silicate; Composite; DIMOX; foam; implant; nano fibers; rheocasting;
Conference_Titel :
Engineering and Technology (ICET), 2012 International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4673-4808-9
DOI :
10.1109/ICEngTechnol.2012.6396142