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- surface morphology and effect of particle sizes on the electrical conductivity of feal2o3 composite
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- development of step-wise functionally graded materials nano (3ypsz/al2o3) with improved fracture toughness and low thermal degradation for hip joint replacements
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- structural and optical analysis of chalcogenide nanostructures
- growing one-dimensional zno nanostructures
- fabrication of superconducting ybco agglomerated particles (anps) by electrospinning
- laser-induced breakdown spectroscopy (libs) technique for the characterization of iraqi cement
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- oxide and metallic materials for photovoltaic applications: a review
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- formation and migration of dislocations produced by plastic deformation in 1070 al-alloy
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- optical properties of gelatin/tgs composites
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- effect of annealing temperature on the optical and electrical properties of mg doped tio2 thin films
- nano-ceramics ti3sic2 max phase reinforced single walled carbon nanotubes by spark plasma sintering
- copolysiloxane solvent detector using langmuir-blodgett surface potential method
- optical properties of manganese chiral single ring by glancing angle deposition technique
- analysis of flip flop design using nanoelectronic single electron transistor
- tunable carbon quantum dots from starch via microwave assisted carbonization
- the effect of additives on behavior of the high temperature laxy1-xba2cu3o7-δ superconductor
Journal of Experimental and Theoretical NANOTECHNOLOGY
About the Journal :
Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.
DEVELOPMENT OF STEP-WISE FUNCTIONALLY GRADED MATERIALS NANO (3YPSZ/AL2O3) WITH IMPROVED FRACTURE TOUGHNESS AND LOW THERMAL DEGRADATION FOR HIP JOINT REPLACEMENTS
Abstract:
In this work high order (10 layers) step – wise functionally graded materials (FGM) of nano 3Y- tetragonal zirconia poly crystals (3YPSZ) and nano alumina (Al2O3) successfully prepared by powder technology technique. “Fracture toughness and hardness were measured by using indentation methods”. Low thermal degradation (LTD) was done at 134 ºC and 0.2 bar in autoclave, the amount of monoclinic phase of ZrO2 (m – phase) on the exposed surface was calculated by X-ray’s diffraction (XRD). Results showed prevent of m – t transformation after 40 hr in all FGM specimens, high fracture toughness along cross – section of specimens due to increase of zirconia content, which tetragonal phase is toughening agent. SEM observations and EDS analytic a long cross – section of specimen showed good distributed of 3YPSZ from EDS analytic and there were no agglomerates, some pores appear due to binder material that was used in pressing process.
Keywords: FGM; alumina; 3YPSZ; LTD; fracture toughness.
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