Materials Literature
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Abstract We report on a recently developed superior ITO‐alternative transparent conductor, based on metal mesh technology. Trademarked by Rolith, Inc as NanoWeb®, metal mesh has the narrowest lines on the market (< 1 micron), which assures complete invisibility of the mesh under the most strict illumination conditions…
A 1T-1R pillar-type “topological-switching RAM” (TRAM) and the data retention of GeTe/Sb2Te3super-lattice were investigated. Reset voltage of TRAM, 2 V, was 40 % of that of the conventional PCM with Ge2Sb2Te5. From data retention evaluation, the TRAM was found to endure the retention at 260 °C for 18 hours.
We have prepared thin indium oxide films by the autowave oxidation reaction. Measurements of temperature dependence of resistivity, Hall carrier concentration and Hall mobility have been conducted in the temperature range 5–272 K. Before ultraviolet (UV) irradiation, the indium oxide film had a semiconductor-like temp…
Foi providenciado o levantamento florístico da ordem Cymbellales (Bacillariophyceae) na área do PEFI, Parque Estadual das Fontes do Ipiranga, São Paulo, SP, Brasil, com base na análise de 28 unidades amostrais. Amostras de plâncton foram obtidas com auxílio de rede e as de perifíton pela coleta e remoção das diatomáce…
Thepurposeofthispaperistoinvestigatetheinuenceofcalenderingprocessonpolypropylenenonwoven structureandthermalresistance. Thestudywasfocusedontheinuenceofmassperunitarea, thickness, density, porosity, characteristic opening size and additional thermal bonding by calendering. Thermal resistance of polypropylene nonwoven…
The criteria for the optimization of chemical composition of Ti-Zr-Nb alloys have been selected that allow for obtaining materials with low elastic moduli and which have been used to melt alloys 50Ti-(50 − x ) Zr- x Nb, at 15 < x < 20 at %. Transmission electron microscopy and X-ray diffraction analysis have been used…
The objective of this study is to compare the results of transferring graphene and few layer graphene (FKG) up to 5 nm thick, grown by chemical vapor deposition (CVD) at a reduced pressure to a SiO 2 /Si substrate using four different polymer films. The chosen transfer methods are based on the most promising (accordin…
Papers, foams and gels from nanofibrillated cellulose (NFC) have emerged as promising materials for various applications. In this study NFC from a Kraft Pulp used in traditional electrical insulation was produced with the aid of a high pressure homogenizer. Papers were manufactured and their mechanical properties as w…
Abstract The article presents research results performed on aluminum bronze CuAl10Fe5Ni5 (BA1055) castings used for marine propellers. Metallographic studies were made on light microscope and a scanning electron microscope to assess quantitatively and qualitatively the alloy microstructure. It has been shown that the…
Abstract Recently, the problem of hydrogen flaking resurfaced, when internal defects were detected in the reactor pressure vessels of two Belgian nuclear power plants. These defects turned out to be hydrogen flakes formed during the fabrication of these pressure vessels. The goal of this publication is to provide impo…
Zinc oxide quantum dot (ZnO QD)/gold nanoparticle (Au NP) nanocomposites with Janus structure were synthesized through a bridge linking of 3-mercaptopropionic acid (3MPA). The bare ZnO QDs presented a typically weak inherent ultraviolet (UV) emission band and a strong defect-related visible band. After Au NPs were ass…
This paper deals with dielectric properties of olefin-based thermosetting resin to understand the applicability to electrical insulating materials. Dielectric properties such as dielectric constant, dielectric loss, volume resistivity, and dielectric strength of poly-dicyclopentadiene are evaluated as well as other pr…
Nonpolar a -plane ZnO-film and n-ZnO/i-ZnO/p-GaN heterostructure LEDs were grown epitaxially by pulsed laser deposition and metal–organic chemical vapor deposition on Si(001) using AlN and MnS as buffer layers. X-ray diffraction pole figures showed an epitaxial relationship of ZnO( ) ∥ AlN( ) ∥ MnS(001) ∥ Si(001). A n…
EM reliability of Cu and Cu(Mn) interconnects was investigated, focusing on the scaling effect on grain structure and mass transport. The microstructure of Cu and Cu(Mn) interconnects was characterized up to the 22 nm node using a high-resolution TEM diffraction technique. Compared to Cu interconnects of the 45 nm nod…
A phase transformation from insulating brownmillerite SrCoO 2.5 to conducting perovskite SrCoO 3 through electrochemical oxidation has been demonstrated for thin films of SrCoOx on a SrTiO 3 (001) substrate. The cobalt-oxide film strongly favors the brownmillerite phase of SrCoO 2.5 instead of the perovskite phase of…
Abstract Redox activation (reduction of structural Fe) of smectites greatly alters their chemical reactivity and physical properties, which may be exploited for various environmental, agricultural or industrial purposes. Their re-oxidation during preparation, characterization, and use is, however, a significant risk t…
ABSTRACT To satisfy some special demands of many applications in the fields of aerospace and the electronic industry, low temperature resistant and high electrical insulation chloroprene rubber (CR) was prepared by blending pristine CR with different weight ratios of butadiene rubber (BR). The low temperature resistan…
In the past 10 years, motors rated 3.3 kV and above are increasingly being fed from voltage source, pulse width modulated converters to control motor speed and power output. Such converters produce short risetime voltage impulses that can accelerate the aging of the stator winding turn insulation, mainwall insulation…
Nanocrystals of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p -toluenesulfonate (DAST) with a size of about 130 nm were prepared by the reprecipitation method, in which an ethanol solution of DAST and additives was injected into volatile hydrocarbons. Since the DAST crystal belongs to a polar space group…
Have been reactively synthesized bio-composites material that has a good in mechanical strength and fuel resistance. The starting material for the manufacture of bio-composite was recycled PP (rPP) modified AA, reinforcement kenaf fiber (KF), the mixture of magnesium hydroxide (MH) and aluminum hydroxide (ATH) without…