in this research, the effect of different biopolymers such as polyethylene glycol (peg) and polyvinylalcohol (pva) on synthesis and characterization of polymer/cobalt ferrite (cf) nano-composites bymechanical alloying method has been systematically investigated. the structural, morphological andmagnetic properties changes during mechanical milling were investigated by x-ray diffraction (xrd),fo...

Controlling crystal nucleation and growth leading to formation of nano structures by an original flux treatment method mainly in calcia and magnesia crucibles followed by water-cooling allowed production of Ti45Cu45Fe10 bulky nanostructured alloy of 16mm in diameter. Since a glass forming ability (GFA) of the alloy composition is low, the alloy could not form an amorphous structure even by a co...

It is considered as a challenge for RABiTS route to get cube textured Ni-W alloy substrates with high mechanical and magnetic properties for coated conductors. The works of our group in recent years are summarized about different Ni-W substrates with high W content and composite tapes made by RABiTS technique. The fabrication process and the mechanism of cube texture formation in above differen...

Bonding between laboratory light-cured composite and surface treated Au-Ag-Pd alloy was investigated using newly developed 4-META/MMA-TBB opaque resin. Shear bond strength after 20,000 thermocycles obtained from heated alloy with this method was 25.1 MPa. Ion-coated specimen showed 25.6 MPa after 50,000 thermocycles with decrease in bond strength being small. Ferric chloride treated specimen, h...

Wood is a naturally renewable material with both continuous and isolated pore systems. Wood-composite panels have the privilege of offering a homogeneous structure to be used as constructional and structural materials. However, its nature makes it susceptible to biological wood-deteriorating agents, water absorption and thickness swelling, fire, etc. Using nano-materials are very easy in the wo...

In this study, the effect of various materials used in fabricating superstructures for implant-retained fixed partial dentures on stress distribution around implant tissues was investigated. Five different mathematical models consisting of 11,361 nodes and 54,598 elements were constructed to study porcelain, gold alloy, composite resin, reinforced composite resin, and acrylic resin veneering ma...

The present study deals with (i) the fabrication of composite surface layer Ti–29Nb–13Ta-4.6Zr/nano-fluorapatite through friction stir processing, (ii) clarifying correlation microstructure and texture in-vitro degradation behavior bioactivity fabricated nano-biocomposite, (iii) comparing mechanical functional properties nano whit those obtained for TNTZ bio-alloy. results indicated that increa...

Materials and methods: A total of 30 restorations (twelve subjects), 18-38 year olds with class IV carious upper anterior teeth were included, divided into three groups. Each group (n=10 restorations) was randomly restored with the same restoration material type; Beautifil II nano hybrid composite resin (Shofu Dental Corporation, USA), IPS Empress Direct nano hybrid composite resin (Ivoclar Viv...

Average stress during shear bond testing, and deformation behaviour during nano-indentation testing were calculated for the bonding area as a bonding site for copolymerization with resin composite in dentine bonding systems. First average stress was calculated in the bonding area between bovine dentine and composite resin. Secondly, the plastic deformation zone size was calculated using an elas...

The art of nano-additive manufacturing in developing advanced mechanical components via machining cannot be over-emphasized when parts for aerospace, automobile, and structural application through the end-milling aluminum alloys. However, process generates heat friction due to parameter that initiated contact between cutting tool workpiece. This excess leads high surface roughness (SR), low mat...