Fabrication and Characterization of Hydroxyapatite-Carbon Nano Tubes Composites
Esmaile Salahi,
Armin Rajabi
Issue:
Volume 2, Issue 4, December 2016
Pages:
41-45
Received:
2 September 2016
Accepted:
2 November 2016
Published:
30 November 2016
DOI:
10.11648/j.ajn.20160204.11
Downloads:
Views:
Abstract: In this research is proposed a relatively popular approach for fabrication of Hydroxyapatite- carbon nanotubes (HAp-CNT) composite, through suspension and hot press methods. The principle raw materials, namely suspensions of CNT and HAp were mixed with together to produce the composites with different wt% CNT. The sonicated suspension is dried at 110°C and subsequent was hot pressed at 500°C under 500 MPa uniaxial pressures. Microstructure and fracture surface of the composites were studied by scanning electron microscope (SEM). The results revealed that addition of 3 wt% CNT to HAp matrix resulted in an about 70% increase in bending strength of the composite.
Abstract: In this research is proposed a relatively popular approach for fabrication of Hydroxyapatite- carbon nanotubes (HAp-CNT) composite, through suspension and hot press methods. The principle raw materials, namely suspensions of CNT and HAp were mixed with together to produce the composites with different wt% CNT. The sonicated suspension is dried at 1...
Show More
Studying Structural and Optical Properties of Thin Films LiNixMn2-xO4 (x = 0, 0.4, 0.5, 0.6) Prepared by Sol-Gel Method
Adnan Hafez Mini,
Mohammad Bashir Karaman,
Ahmed Khaled Kbetri
Issue:
Volume 2, Issue 4, December 2016
Pages:
46-50
Received:
14 October 2016
Accepted:
18 November 2016
Published:
12 December 2016
DOI:
10.11648/j.ajn.20160204.12
Downloads:
Views:
Abstract: Thin films LiNixMn2-xO4 (x=0, 0.4, 0.5, 0.6) were prepared by Sol-Gel method employing spin-coated technique. The films were annealed at 600°C for 2 hours. The structural properties of the films were studied by XRD technique. The films were found in cubic spinel structure with decreasing in the lattice constant by increasing the substitution ratio until x=0.5. After this ratio additional peaks appearing in XRD pattern, this indicates a phase transition of LiNi0.6Mn1.4O4 thin film. Optical properties of the LiNixMn2-xO4 thin films were investigated by UV–VIS spectroscopy in [400-900] nm rang. The study indicated the presence of a high absorbency values in some part of visible range spectrum of the LiNixMn2-xO4 thin films. Direct optical band gap for thin films LiNixMn2-xO4 were estimated.
Abstract: Thin films LiNixMn2-xO4 (x=0, 0.4, 0.5, 0.6) were prepared by Sol-Gel method employing spin-coated technique. The films were annealed at 600°C for 2 hours. The structural properties of the films were studied by XRD technique. The films were found in cubic spinel structure with decreasing in the lattice constant by increasing the substitution ratio ...
Show More
Electrical Exploding Wires as the Source of Nanoparticles
Volodymyr Chumakov,
Oleksandr Stolarchuk,
Mikhailo Ostrizhnoi
Issue:
Volume 2, Issue 4, December 2016
Pages:
51-55
Received:
22 July 2016
Accepted:
12 August 2016
Published:
29 December 2016
DOI:
10.11648/j.ajn.20160204.13
Downloads:
Views:
Abstract: The results of experimental investigations of metal nanoparticles produce on the basis of the electrical exploding conductors effect for medical using are presented. Experimental equipment is designed. Analysis of copper nanoparticles biological activity was was carried out. Simplified model for calculating the current integral is shown.
