Materials Literature
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The magnetic properties of La1−xCaxMnO3 (x=0.50, 0.67, and 0.75) nanoparticles have been systemically investigated in this work. It is found that although their bulk counterparts have different magnetic and charge ordered states, the nanoparticles show no long-range charge ordered transition but very similar magnetic…
The impact failure characteristics of rock subjected to one-dimensional coupled static and dynamic loads are conducted with a modified split Hopkinson pressure bar(SHPB). Firstly,the testing principle with axial precompression stress is re-examined based on one-dimensional wave theory. The axial precompression stress(…
Epitaxial Na0.5Bi0.5TiO3 thin films presenting various thicknesses were grown by pulsed laser deposition on epitaxial (100) platinum bottom layers supported by (100)MgO single crystal substrates. X-ray diffraction data indicated that all Na0.5Bi0.5TiO3 layers are single-phased and that (100)-oriented Na0.5Bi0.5TiO3 (N…
We study theoretically the nonlinear response properties of glass formers. We establish several general results, which together with the assumption of time-temperature superposition, lead to a relation between the nonlinear response and the derivative of the linear response with respect to temperature. Using results f…
The surfaces of polycarbonate films were treated by nitrogen plasma, in order to understand the effect of low energy ions on the surface modification of polycarbonate. The modified samples were characterized by micro-hardness tester, optical micrograph/atomic force microscopy (AFM), X-ray photoelectron spectroscopy (X…
Five polynuclear complexes of d 10 metals with 2-mercaptobenzimidazole (HMBD) or 2-mercaptobenzothiazole (HMBT), namely, [N(CH 2 CH 3 ) 4 ][Cu 3 (MBD) 2 ] ( 1 ), [N(CH 3 )(CH 2 CH 3 ) 3 ] 2 [Cu 6 (MBD) 6 ]Cl 2 ( 2 ), [Ag 6 (MBT) 6 ] ( 3 ), [Zn 4 (μ 4 -O)(MBD) 6 ]·3CH 3 OH ( 4 ), and [Zn 4 (μ 4 -O)(MBT) 6 ] ( 5 ), have…
Impedance spectroscopy is performed on a buried capacitor structure composed of a PZT-0.75% Nb ceramic with platinum electrodes. The ionic and electronic conductivities (σion,σelec) are extracted from the impedance spectra using an equivalent circuit based on the premise of mixed conduction. In the temperature range 5…
Abstract Summary: Three different methods of deproteinization, i.e. saponification, surfactant washing and enzymatic treatment were employed to unravel the effect of deproteinized on the properties of natural rubber (NR) latex. The cleavage of proteins in NR latex was found to proceed with concomitant formation of low…
The effect of addition of tetraethylammonium tetrafluoroborate (Et(4)NBF(4)) on the structure of propylene carbonate (PC) confined in slit-shaped carbon nanopores of activated carbon fiber (pore width = 1.0 nm) was studied by synchrotron X-ray diffraction and reverse Monte Carlo simulation. PC molecules are randomly p…
This paper deals with the analysis of partial discharge characteristics of silicone rubber insulators, with the aim to develop a better diagnostic tool to identify the pollution severity of outdoor insulators. In this work, laboratory-based pollution performance tests are carried out on silicone rubber insulators unde…
Inverter-fed motors are damaged due to pulse voltage. The situation leads to early failure of insulation. Polyimide is an important insulating material in the inverter-fed motors. Its insulation aging process and failure mechanism are different from traditional ac and dc voltage. In this paper, structure change of pol…
Biominerals can achieve complex shapes as aggregates of crystalline building blocks. In the red coral skeleton, we observe that these building blocks are arranged into eight hierarchical levels of similarly (but not identically) oriented modules. The modules in each hierarchical level assemble into larger units that c…
As-grown and oxygen plasma treated n-type tin dioxide (SnO2) (101) thin films were investigated regarding the properties of Au contacts, surface structure, and band bending. The plasma treatment was performed in a conventional oxygen plasma cleaning system with maximum oxygen ion energies of 400 eV. Whereas the as-dep…
Two-step reactions of [Cp*M(mu-Cl)Cl](2) (M = Ir, Rh) and [(p-cymene)Ru(mu-Cl)Cl](2) with first AgOTf or AgPF(6) and then pyridyl-substituted dionate ligands [3-(4-pyridyl)pentane-2,4-dione (L(1)), 1-(4-pyridinyl)butane-1,3-dione (L(2)), 1-(3-pyridinyl)butane-1,3-dione (L(3))] resulted in the formation of the hexanucl…
The book offers a new and complex perspective on the fabrication and use of electrodeposited nanowires for the design of efficient and competitive applications. While not pretending to be comprehensive, the book is addressing not only to researchers specialized in this field, but also to Ph.D. students, postdocs and e…
This paper focuses on the limits of partial discharge apparent charge estimation and calibration using an unified approach. The fundamental problems that prevent accurate apparent charge estimates (resonances, attenuation and partial discharge pulse splitting) are tackled through this approach, highlighting the physic…
Organically-modified nanofiller clays can have significantly different aspect ratios as well as accumulate a relatively large amount of water in the composite bulk due to the contribution of the filler itself and the interaction between filler and polymer matrix. This paper investigates the effect of water absorption…
Abstract A novel technique, combining the plasma assisted deposition of SiOx‐like coatings with the initiated chemical vapor deposition (iCVD) of organosilicon films in a single‐chamber process, was investigated for the production of multistack barriers against the water vapor permeation. Hexavinyldisiloxane (HVDSO) w…
Granules of in-house prepared PZT ceramic and powder of commercially available PVDF polymer were used as starting materials to form a series of x PZT /(1 - x) PVDF composites (where x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1.0) with 0–3 connectivity. Densities of the composites tended to increase with increasing PZT cerami…
Multiferroic BiFeO3 thin films were grown on LaNiO3-buffered Pt/TiO2/SiO2/Si substrates by off-axis radio frequency magnetic sputtering, where (110) oriented texture was obtained. The LaNiO3 buffer layer promoted the growth of BiFeO3 film, resulting in a dense texture and columnar growth of BiFeO3 thin films. The BiFe…