Materials Literature
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In order to develop flexible absorbing fabric, three kinds of 58.3tex Ni-Fe fiber blended yarn which Ni-Fe fiber content was 8.34%, 11.11% and 13.89% were spun successfully and fabricated to different kinds of fabrics according to mental fiber property and electromagnetic spreading regulation. The reflectivity of fabr…
The use of covered conductors in spacer cable systems (SCS) for compact distribution lines has considerably reduced the failure rates on distribution feeders installed in some inland areas of Mexico. However, in coastal areas, where salt is deposited on the surface of insulators and cable spacers, the use of these sys…
Materials that possess a negative Poisson's ratio are called Auxetics. They are characterized by the counterintuitive behavior of expanding in tension and contracting in compression. To justify this deformation behavior, there have been developed theoretical modelations like the reentrant and bowtie models. However, t…
Single crystals of N-benzylaniline (C6H5-CH2-NH-C6H5) have been grown, X-ray structural analysis of these crystals has been performed, and their symmetry has been identified as corresponding to the space group C 2 5 . Raman spectra of N-benzylaniline single crystals in polarized light for different geometries of the e…
The governing equations and the finite element model for the coupled thermo-mechanical multi-pass vertical-horizontal rolling process of a zircaloy strip are established. Considering the temperature-dependent and strain rate-dependent constitutive relation of zircaloy, the numerical simulation of the three-pass V-H ro…
The initial ratio between the singlet (pink balls) and triplet (blue balls) excitons should be 1:3 according to spin statistics. On page 510, B. Yang, Y. Ma, and co-workers describe how a very small singlet–triplet energy split between S2 and T2 with a dominant charge-transfer character and a large energy gap between…
Two series of polyurethane matrix composites were prepared. As generally resistant to wear, the PUs can be used as matrices for wear protective and load-bearing composites. The objective of this study was to compare the mechanical properties of composites containing 5% vol. of selected ceramic particles, and unmodifie…
ZnO electrospun nanofibers were considered to be potential novel materials in applications of photovoltaic devices and sensors. AZO glass was usually used in those devices as transparent electrodes. ZnO nanofibers on AZO glass were synthesized by electrospinning and calcination process. Scanning electron microscopy (S…
Through the constant search by researchers to obtain materials with improved properties, literature has presented an annual increase in the number of articles that seek to optimize in the methodology used to prepare nanopowders. In this way, the aim of this work is to study how the calcined temperature (500, 600, 700,…
Multiwalled carbon nanotubes/Polycarbonate (MWCNTs/PC) nanocomposites were successfully prepared by melting mixing. With the injection speed and temperature changed, different MWCNTs contents MWCNTs/ PC composites were prepared. The electrical conductivity of nanocomposites was compared with different injection speeds…
In this paper, CuCrO2the compound was synthesized by a route new that uses gelatin as organic precursor in order to application as ceramic pigments. The type of compound delafossite CuCrO2is known for its wide range of application, such as, thermoelectric devices, catalysts for the steam reforming process, ceramic pig…
Experimental methods, such as OM, SEM and X-EDS, were used to study the microstructure of X80 pipeline steel. It mainly consists of fine acicular ferrite (AF). X80 pipeline steel possesses high strength and impact energy at-30°C approaches to 400J. Grain refinement and precipitation hardening are the main reasons for…
Yttria-stabilized zirconia is a singular polycrystaline ceramic with a range of technological applications. The combination of its physical properties is responsible for application as solid electrolytes in solid oxide fuel cells. High densification is required for this and other applications. The sintering of this so…
Abstract The magnetic characteristics of Fe and Fe-Ti magnetic mineral bearing rocks of young, through recent, quaternary, mesozoic to palaeozoic age have been studied. I have discovered a strange antiferromagnetic phase (AFMP) in Fe and Fe-Ti magnetic minerals of about 288 samples from 78 localities of volcanic rocks…
Electrodeposition can enable stoichiometric control of deposited samples through variation of electroplating potential. We demonstrate an in-situ technique for deposit analysis and stoichiometric control by interspersing periods of open-circuit during deposition. Opening the circuit in an organic Cu-In-S plating bath…
We have investigated the possibility of growing oriented crystalline silicon films, 2 to 3 micron thick, from silane-hydrogen mixture, by hot wire chemical vapour deposition (HWCVD). Several substrates i) amorphous SiO2, ii) oriented TiO2layer on glass, iii) textured nickel-5% tungsten metal strip, and iv) crystalline…
Temperature and operating pressure are important to stress corrosion cracking (SCC) of stainless steel. The SCC susceptibility of 18-8 type austenitic stainless steel, 06Cr18Ni11Ti (S32168), in an environment containing hydrogen chloride was assessed using the slow strain rate tensile (SSRT) test under different tempe…
The thermopower α and magnetothermopower Δα/α have been studied on single-crystal Sm0.55Sr0.45MnO3 samples consisting of three types of magnetic clusters (ferromagnetic clusters with the Curie temperature T C = 134 K, the A-type antiferromagnetic clusters with the Néel temperature T NA ≥ T C, and the CE-type antiferro…
For a class of strict-feedback nonlinear systems with hysteresis described by Bouc-Wen model, adaptive controller is proposed combined with backstepping technique. In this method, RBF neural network is used to approximate the unknown function. The unknown control direction is solved by Nussbaum function. It is proved…
An unusual latch-up phenomenon in a microcontroller with a built-in flash memory was detected. The root cause was identified by TCAD simulation and the latch-up mechanism was explained. A novel solution without additional cost was proposed. After applying this solution, the latch-up immunity was dramatically improved.