Materials Literature
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Electro-optical properties and morphology of reverse scattering mode liquid crystal (LC) display, which shows a transparent voltage off-state and a light scattered voltage on-state, have been investigated. The display is prepared by using a twisted nematic LC layer doped with a photo-reactive mesogen (RM), which forms…
Magnetic properties of nitroxide radicals can be greatly affected by solvent effects. In this study, the change of the magnetic exchange interaction J, coupling the two unpaired electrons of a model solvated antiferromagnetic bis-iminyl-nitroxide molecule (2IN), is rationalized thanks to different geometric and electr…
The hierarchically porous carbons (HPCs) have been prepared by sol-gel self-assembly process with nickel oxide and surfactant as the dual template. The as-prepared HPCs are further activated by HNO 3 . The specific surface area and pore structure of the activated HPCs are characterized by nitrogen adsorption–desorptio…
The application of rare earth complexes in several techniques and technologies requires their strong, i.e. preferably covalent, fixation to a substrate. The particularly useful luminescence properties of – readily available – rare earth β-diketonate complexes can widely be maintained on co-ligation with an epoxi-funct…
The interfacial properties of solution-processed conjugated polymer films are investigated. Their surface roughness was controlled by varying the humidity during the film deposition and mechanical exfoliation. A superhydrophobic film was obtained from a rough film of a partially fluorinated conjugated polymer. These f…
Processes were developed for manufacturing mixed magnetoelectric (ME) composites (100 − x ) wt % PZTNB-1 + x wt % Ni 0.9 Co 0.1 Cu 0.1 Fe 1.9 O 4 − δ using sol-gel processes to synthesize piezoelectric and magnetostrictive components; these processes provide composite ceramics having different connectivity types with…
In order to understand the role of interface structure during shock loading, and specifically the role of interfaces in damage evolution due to shock, four copper bi-crystal grain boundaries (GBs) were studied under shock loading and incipient spall conditions. These boundaries, two [100]/[111] boundaries and two [100…
We investigated the nano-scale superlubricity or ultralow friction appeared at the graphene/C60/graphene interface, where the (mean) lateral force becomes nearly zero within the atomic resolution of the frictional force microscopy (FFM). The C60 intercalated graphite film is one of the most successful systems we have…
The size-dependent surface properties of low-reflectivity porous alumina thin film on glass substrate produced by two-step self-organized anodization of aluminum are observed. By electro-polishing the aluminum coating, a minimum roughened surface with an R rms of 3.91 nm is obtained. After adjusting the applied potent…
The corrosion products formed on Zn, Zn-55Al and Al-8.2Mg-4.8Si alloys coating has been investigated by potentiodynamic polarization in a mixture of 0.5 M Na2SO4 and 0.1 M NaCl solution. The anodic current density on Zn and Zn-55Al alloys coating show the existence of dissolution indicated that Zn and Zn-55Al alloy co…
Intermetallic Pt(3)Ti nanoparticles are solubilized in water by using a generation-five, hydroxyl-terminated, poly(amidoamine) dendrimer, G5OH, as a post-synthesis surfactant. Pt(3)Ti nanoparticles, encapsulated in G5OH and dispersed over the electrode surface, exhibited a superior catalytic activity toward the electr…
High-chromium white iron based weld overlay materials containing metal carbides were deposited, and the wear performances were evaluated using a dry sand/rubber wheel test according to American Society for Testing and Materials G65-04 standard. The test results demonstrated that the weld overlay materials showed relat…
Insulin dependent diabetes mellitus (IDDM) is a global disease with high economic and social burden. A potential cure for type 1 diabetes is pancreatic islet transplantation. Despite recent improvements, islets are faced with various types of stress related to the isolation and transplantation procedure. Oxidative str…
The full potential linear muffin-tin orbital (FP-LMTO) method was applied to study the structural and electronic properties of the compounds MgO, ZnO and their alloy MgxZn1–xO in the zincblende and NaCl structures. Results are obtained using the local density approximation (LDA), the ground-state properties like latti…
We describe a facile and flexible technique for fabricating double-shelled hybrid hollow microspheres with a controlled void size via in situ miniemulsion polymerization. After monomers polymerize the tetraethoxysilane phase is compressed and restricted as a liquid core leading to the formation of a hollow structure a…
Nano-gas generators were synthesized by encapsulating azo-components into hydrophobic polymer particles. The dispersions of azo-components were subsequently thermally decomposed and could be reacted with either hydrophilic or hydrophobic dyes, which were located in the continuous and dispersed phases, respectively. Bo…
Investigation the Degradation and Devulcanization Reaction of Thermoplastic Vulcanizate using Peroxide Compound was carried out by means of benzoyl peroxide as a devulcanizing agent. The temperature for the recycling condition was gradually increased from 80°C to 190°C because of the half-life of benzoyl peroxide. Fur…
A new method for the crystal growth of alkaline-earth palladate CaPd3O4 was developed. The crystals were synthesized on a voltage-applied electrode in a molten chloride solvent. The maximum length of the crystal was about 1.5 mm. The X-ray diffraction data were refined well by assuming a cubic structure of the space g…
Mechanical properties including fatigue property and microhardness of pre and post fatiguing, have been investigated for four different microstructures (near bi-model, lamellar and basketweave) of TC18 titanium alloys. The correlation of condition fatigue strength and microhardness decreasing among different microstru…
Increasing the synthesis scale is one of the most important issues in nanocrystal synthesis. The main difference between small and large reactors is the thermal transfer rate, which has been reported to have great effects on particle nucleation and growth. According to this viewpoint, the heating rate effects should b…