The mechanical properties of nanocomposites based on poly lactic acid/polyolefin elastomer (PLA/POE) were investigated. compounds made using an internal mixer. POE in two levels at 10–20 wt.% and nano fillers, including multi-walled carbon nanotubes (MWCNT) graphene nano-platelets (GnPs) 1, 2, 3 levels, added to the PLA. Impact tensile tests conducted extract impact properties, respectively. di...

Cellulose nanofibers were isolated from coconut coir fibers by chemical treatment using alkaline, mineral acids and inorganic salts, followed by mechanical treatment and disintegration methods like sonication, cryo crushing and dissolution. The size and morphology of cellulose nanofibers were investigated by using the Field Emission Scanning Electron Microscope (FESEM). The width of synthesized...

although cu and fe are immiscible under equilibrium conditions, they can form supersaturated solid solutions by mechanical alloying. in this paper, nano-structured of the metastable cu-fe phase containing 10, 15, 20 and 25% wt fe were synthesized by intensive ball milling for 15h, in order to achieve a solid solution of fe in cu. the phase composition, dissolution of the fe atoms into the cu ma...

This work aims to define the microstructure and study mechanical properties of an Al matrix incorporated with various amounts Fe2O3 (3, 6, 9, 12 15 wt.%) a constant amount Ag at 1 wt.%. Al/Fe2O3 + hybrid nano-composite samples are manufactured using powder metallurgy. An aluminum is considered important alloy, owing its such as being lightweight, strong corrosion wear resistant, which enable it...

The BaZrxTi1-xO3: Eu 3+ phosphors have been synthesized the conventional solid state reaction method. Mechanoluminescence (ML) and thermoluminescence (TL) in barium zirconium titanate (BZT) system with Europium as dopant is reported for the first time. The BZT system belongs to perovskite family. The samples are prepared in a high temperature furnace at a temperature of 1200 o C. The powder X r...

Chitosan–silver (CS–Ag) nanocomposite materials were synthesized by a simple chemical method. The synthesized CS–Ag nanocomposite contains 20 wt% silver. Silver nanoparticles were synthesized by chemical reduction method as well. The CS–Ag nanocomposite was characterized using Field emission scanning electronic microscope (FESEM), X-ray diffraction (XRD) and Fourier transform infrared spectrosc...

in this study, aluminum (al) matrix reinforced with micro-particles (30 µm) and nano-particles (50 nm) boron carbide (b4c) were used to prepare al-2.5%wt., b4c nano-composite and micro-composite, respectively, using mechanical alloying method. the mixed powders were mechanically milled at 5, 10, 15 and 20 hrs. the xrd results indicated that the crystallite sizes of both the micro-composite and ...

The present paper aims to study the preparation of polyaniline nanofibers through simple interfacial polymerization. Ammonium persulfate, hydrochloric acid and chloroform were used as oxidant, dopant and organic solvent respectively. Field Emission Scanning Electron Microscopy (FESEM), X-ray diffraction and Fourier Transform Infrared Spectroscopy (FTIR) techniques were used to analyze the produ...

in the present study, the influence of annealing temperature on mechanical properties and the microstructure of a high manganese austenitic steel (fe-30mn-4al-4si-0.5c) was investigated. x-ray diffractometry, optical and scanning electron microscopy, hardness and tensile tests were used to analyze the relationship between mechanical properties and microstructure after annealing process. the res...

a bionanocomposite film was developed by nanoclay incorporation to chitosan films, using a solution casting method and the effects of nanoclay concentration (0.5, 1.0, and 3% w/w) on the physical and mechanical properties of the chitosan films were evaluated. moreover, x-ray diffraction (xrd), scanning electron microscopy, and fourier transform infrared spectra (ftir) were used for studying mic...