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。
Pure metallic powders of Fe, Cr, Ni, W, Ti and nano-Y2O3 powders were mechanical alloyed by high energy mechanical milling under N2 atmosphere to develop a nitrogen contained oxide dispersion strengthened austenitic steel powders. The compositions of the mixed powders are Fe-18Cr-8Ni-2W-1Ti-0.35Y2O3. The effects of mi…
In this paper, we present a detailed investigation of the thermo-luminescence (TL) kinetics of the long afterglow phosphor, Sr4Al14O25:Eu2+,Dy3+, synthesized by the combustion method. Kinetic parameters such as the activation energy (Eα), the frequency factor (s) and the order of kinetics (b) were calculated using Che…
The mechanical quality factor and the resonant magnetoelectric (ME) response of multi-push-pull mode Metglas/interdigitated (ID)-electrode/Pb(Zr,Ti)O3 (PZT) ME resonators have been studied as a function of ID-electrode geometry for both sandwich and bimorph configurations. The results show that the mechanical quality…
The stress increments depend not only on the plastic strain but also on the gradient of plastic strain, when the characteristic length scale associated with non-uniform plastic deformation is on the order of microns. In the present research, the Taylor-based nonlocal theory of plasticity (TNT plasticity), with conside…
By taking combustion synthesis to prepare solidified TiB 2 matrix ceramic in high-gravity field, the layered composite of TiC-TiB 2 ceramic to Ti-6Al-4V substrate in graded composition was achieved. XRD, FESEM and EDS results showed that the bulk full-density solidified TiC-TiB 2 composite was composed of fine TiB 2 p…
An azo dye derived from sulphanilic acid was synthesized in moderate yield by a coupling reaction between a diazonium salt of the sulphanilic acid and aniline at 0-5 C. The resulting azo derivative was characterized using nuclear magnetic resonance (NMR) and various spectroscopic methods such as uv-vis, infrared radia…
An easy process for allylation and benzylation of different carbon materials, primarily of glassy carbon, in acetonitrile solutions containing tetraalkyammonium salts is described. The method relies on the capability of C(sp(2)) zones of glassy carbon (graphite and fullerene-like inclusions) to be anodically charged a…
The poor bioavailability and therapeutic response exhibited by conventional ophthalmic solutions due to rapid precorneal elimination of the drug may be overcome by the use ocuserts. Ocuserts is the new drug-delivery systems which are planned in such a way that they release the drug at the predetermined rate thus elimi…
The purpose of this study is to provide transparent conductive composite films, used for such as dye-sensitized solar cells (DSSCs). In this work, transparent conductive oxide films with double-layer structure, ATO(antimony doped tin oxide)films covered on AZO(aluminum doped zinc oxide)films, were prepared on glass su…
Abstract The title compounds are synthesized by arc‐melting of the elements followed by annealing at 1070 K for one week.
The method is based on a microheater integrated next to a wire bonding pad (test pad) on a test chip. It is fabricated in CMOS technology without additional micromachining. The microheater consists of two polysilicon resistor elements, placed at opposite sides of the pad, operated in parallel using a constant voltage,…
We show that assembled domains of magnetic iron-oxide nanoparticles (IONPs) are effective at increasing the dielectric permittivity of polydimethylsiloxane (PDMS) nanocomposites in the GHz frequency range. The assembly has been achieved by means of magnetophoretic transport and its efficacy, as well as the electromagn…
Gas cluster ion beam (GCIB) irradiation was performed on Fe7Co3 films to examine the magnetic properties. After Ar ion beam etching, the coercive force (Hc) increased from the initial value; this may have been caused by irradiation damage from high-energy Ar ions. Hc decreased after Ar-GCIB irradiation (acceleration v…
In the paper, we used the LS-DYNA FE code to simulate the bullet penetration against the target plate with different ceramic-steel ratio of thickness. The main stages of the bullet penetration and damage contours of the target were studied by analyzing the residual velocity-time curves. We also studied energy absorpti…
Ballistic performance of the gradient material is superior to laminated material, and gradient materials have different gradient types. Using ls-dyna to simulate the ballistic performance of ALN-AL gradient target plates which contain three gradient index (b = 1, b = 0.5, b = 2). Through Hopkinson bar numerical simula…
Polyesters are widely used in various industrial applications and preferred for their outstanding properties such as high strength,resistance to abrasion, shrinking, wrinkling, most of the chemicals and environmental conditions. However the hydrophobic surfacestructure due to the lack of polar groups on the surface br…
The presence of metallic particles has been recognized as a dangerous threat in gas-insulated substation (GIS). Such particles are initially free and move toward higher electric field regions such as triple junction i.e., spacer-electrode-gas interface. However, once these particles reach the spacer surface, they adhe…
Three new zinc(II) coordination polymers, [Zn(imi)2(-oba)] n ·nH2O (1), [Zn(2,2′-bipy)(-oba)(H2O)] n ·nH2O (2), and [Zn2(4,4′-bipy)(-oba)2(H2O)2(DMF)2] n ·nDMF (3) (oba = 4,4′-oxybisbenzoate, imi = imidazole), have been synthesized and structurally characterized by single-crystal X-ray crystallography and FT-IR spectr…
Abstract Ytterbium complexes supported by a linked bis(β‐ketoiminato) ligand,N,N′‐ethylenebis(benzoylacetoimine) (H2L), were synthesized and their catalytic behavior was explored. The reaction of YbCl3with 1 equiv. of LLi2afforded the mononuclear ytterbium chloride LYbCl(THF)2(1) in high yield. Complex1can be used as…
A novel silicon groove reflective grating structure (RGS) to reduce effectively the insertion loss of a high C-axis (002) thin-film zinc oxide (ZnO) surface acoustic wave (SAW) device is proposed. The insertion loss (S 21 parameter) of three types of SAW devices was investigated and compared; one type had no RGS desig…