Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Ssensorless speed measurement of induction machines using Short Time Fourier Transformation (STFT) is presented in this paper. The sensorless speed information of induction motors was derived from space vector angular fluctuation which is obtained from stator current by exploring the position of the current space vect…
The phase diagram of the system Mn2−xFexAs0.5P0.5 is investigated experimentally and theoretically. The existence of an antiferromagnetic phase for alloys with x<0.7 is revealed. It is shown that in the region 0.5<x<0.8, ferromagnetism and antiferromagnetism can coexist in the low-temperature phas…
The performance of multi-layer (1 − x) La0.8Sr0.2MnO3/x YSZ graded composite cathodes was studied as electrode materials for intermediate solid oxide fuel cells (SOFC). The thermal expansion coefficient, electrical conductivity, and electrochemical performance of multi-layer composite cathodes were investigated. The t…
Pure and doped zinc sulfide (ZnS) quantum dots have attracted increasing interest from researchers working on various scientific and engineering applications in electronics, nonlinear optical devices for communication, and optical computers. In this study, ZnS nanoparticles doped with erbium (ZnS:Er) with approximatel…
Several negative externalities arising from the consumption and disposal of plastics materials are described. Such externalities include the aesthetic damage created by landfills containing plastic waste, the impact to marine life of plastic residuals, the hazardous emissions of plastic incineration, and the economic…
We report a successful implementation of epitaxially grown Phosphorus-doped (P-doped) embedded SiC stressors into SOI nMOSFETs. We identify a process integration scheme that best preserves the SiC strain and minimizes parasitic resistance. At a substitutional C concentration (Csub) of ∼1.0%, high performance nFETs wit…
Pectina fosfatada (Pect-TMFT) juntamente com o α-Gluco-oligossacarídeo (Bioecolians®) foram incorporados à dispersão aquosa de polimetacrilato (Eudragit® RS 30 D) para obtenção de filmes isolados pelo processo "casting" (50 ºC) em placa de Teflon®. A Pect-TMFT e o Bioecolians® foram adicionados à dispersão de Eudragit…
Kurzfassung Es werden die Auswirkungen kombinierter thermischer und mechanischer Festwalzbehandlungen am Beispiel des Werkstoffs Ck 45 in unterschiedlichen Wärmebehandlungszuständen studiert. Dabei handelt es sich um das Festwalzen bei erhöhten Temperaturen sowie um eine an die Festwalzbehandlung angeschlossene Auslag…
Basalt fiber reinforced polyamide composites were investigated to determine their static and dynamic mechanical properties. The composites were compounded in an extruder and were injection molded. A glass fiber reinforced composite also was investigated. Two different basalt fibers were used with silane sizing and one…
Effects of the Pd loading (0.2–10 wt%), calcination temperature (400–900 °C) and reduction of PdO/Al 2 O 3 on its performance in the H 2 -to-H 2 O 2 oxidation (with H 2 /O 2 = 1:1) in an aqueous 0.1 M H 3 PO 4 medium, in the absence and presence of different halide anions, under ambient conditions have been investigat…
Stress corrosion cracking (SCC) is one of the most important degradation mechanisms in light water reactor structural materials. In situ corrosion monitoring tools with the capability to detect SCC initiation in high temperature water environments would be important to identify critical conditions; the measurement of…
The complex formation of zinc 2,8,12,18-tetramethyl-3,7,13,17-tetraethylporphyrinate, 5,17-bis(zinc 2,8,12,18-tetramethyl-3,7,13,17-tetraethyl-10-phenylporphyrinate)-25,27-dimethoxy-26,28-dihydroxycalic-[4]-arene, and 5,17-bis(zinc 2,8,12,18-tetramethyl-3,7,13,17-tetraethyl-10-phenylporphyrinate)-25,27-dimethoxy-26,28…
A two steps direct polymerization process was developed. The first step is to produce oligomer and then the oligomer of lactic acid is polymerized with binary catalyst tin chloride dihydrate/ p-toluenesulfonic acid. In this way, the direct synthesis of poly (lactic acid)(PLLA) without any organic solvents was investig…
The MCM‐41 and SiO2 supported TiCl4 and TiCl4/MgCl2 catalysts with different molar ratios of Mg/Ti were synthesized and used for ethylene polymerization under atmospheric pressure. The nanochannels of MCM‐41 serve as nanoscale polymerization reactor and the polyethylene nanofibers were extruded during the reaction. Th…
The effects of Nb on the microstructure and magnetic properties of (Nd0.9Dy0.1)9.5Fe79-xCo5NbxB6.5 (x = 0, 1) nanocomposite magnets were investigated. A fine and uniform microstructure was achieved for the ribbons annealed at 710°C for 4 min, enhancing the interaction coupling between grains and improving the magnetic…
The effects of the electron radiation dose and of compatibilizers on the contact angle and surface free energy (SFE) of the composites made of low-density polyethylene (PE-LD), high-density polyethylene (PE-HD), polypropylene (PP), polystyrene (PS), and polyethylene terephthalate (PET) were studied. Use of the high-en…
Abstract The crystal structure of a sodium yttrium silicate with nominal composition Na 9 YSi 6 O 18 was determined from laboratory X-ray powder diffraction. The actual composition of the crystals was found to be Y-enriched, and a corrected nominal composition of Na 8.25 Y 1.25 Si 6 O 18 was established. The compound…
Materials deposited by focused-ion-beam chemical vapor deposition (FIB-CVD) have numerous interesting material characteristics. They contain gallium (Ga) because Ga is implanted by Ga + FIB irradiation. Atomic ratios of the diamond-like carbon (DLC) deposited using phenanthrene (C 14 H 10 ) as a gas source for FIB-CVD…
We have analyzed the correlation between insulator surface copper contamination and time-dependent dielectric breakdown (TDDB) quantitatively for the first time. TDDB lifetime strongly depends on the copper contamination after CMP process, and it is important to control the redox potential to be less than -0.5 V vs. N…
For the size reduction of electric power equipment, an increase of electric field stress around solid insulators is carefully to be considered. The application of FGM (Functionally Graded Materials) with spatial distribution of dielectric permittivity (epsiv-FGM) will be an effective solution for this concern. In this…