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。
Thermally stressed high-density multi-tier copper wire bonded IC packages are the most challenging tasks in IC package decapsulation. For acid decapsulation, the hardening of epoxy in molding compound after stress tests requires much longer etching duration. As a result, copper bond wires suffer severe corrosion damag…
We have investigated the influence of a stray field on a magnetic domain wall (DW). The depinning fields of a DW in a perpendicularly magnetized Co/Ni nanowire with partly-stacked Ni 81 Fe 19 /SiO 2 islands on it was measured. The depinning field for the wire with Ni 81 Fe 19 /SiO 2 was found to be higher than that fo…
The kinetics which explained the Copper Super-filling by electrodepostition was investigated since the copper deposition became the standard technique for TSV. A simple numerical model is built to explain the copper deposition process. Consider with the effect of the accelerator, a linear equation is built to explain…
Geopolymer cements present a unique opportunity to make concrete binders almost entirely out of waste stream materials. Geopolymers made from fly ash, a waste product of coal power generation, as the aluminosilicate source and caustic activating solution were the focus of this study. However, the use of waste stream m…
We present a new method of making a textured V-pit surface for improving the light extraction efficiency in GaN-based light-emitting diodes and compare it with the usual low-temperature method for p-GaN V-pits. Three types of GaN-based light-emitting diodes (LEDs) with surface V-pits in different densities and regions…
Abstract Quenching and partitioning (Q&P) steel is a term used to describe a series of C-Si-Mn, C-Si-Mn-Al, or other steels subjected to the quenching and partitioning heat treatment process. This article discusses the Q&P steel's chemical compositions and mechanical properties, and provides an overview of the importa…
The effects of the addition of H 3 BO 3 on the microstructure, phase formation, and microwave dielectric properties of (Zn 0.7 Mg 0.3 )TiO 3 ceramics sintered at temperatures ranging from 890 °C to 950 °C are investigated. H 3 BO 3 as a sintering agent can effectively lower the sintering temperature of ZMT ceramics be…
When a thin liquid film is applied to the surface of a horizontal cylinder, gravity will cause a drainage of liquid from the top and sides of the cylinder towards the cylinder bottom. If surfactant is present on the surface of the film, this will cause a convection of surfactant resulting in a higher concentration of…
This paper presents the interactions among induction motors after voltage sags in power systems, which is useful for industrial customers to arrange intelligent protection of multiple motors to reduce unnecessary stalling. When voltage sags are cleared in power systems, not all induction motors will reaccelerate succe…
In this article there are presented the developments on the crystal growth by the Czochralski method of uoride laser
The phase state and rheological properties of poly(1-trimethylsilyl-1-propyne) solutions in toluene and cyclohexane are studied. Samples of poly(1-trimethylsilyl-1-propyne) have the same backbone structure (cis-trans configuration ratio) but different molecular masses. Phase diagrams of these systems are derived via o…
La soldadura es una de las tcnicas ms utilizadas para la unin de elementos estructurales, y presenta mltiples beneficios en su aplicacin. Sin embargo, es usual encontrar algunos defectos en los elementos soldados, debido a los regmenes de temperatura usados en el momento de su deposicin, los esfuerzos por contraccin q…
Li/W/Mn/SiO 2 composites were studied immediately after sol-gel or solid-phase synthesis and the high-temperature exposure to methane-oxygen and hydrogen-air mixtures. The phase compositions of these catalysts, which determines their catalytic activities in the oxidative coupling of methane, were shown to depend on th…
We report the first in-plane graphene on silicon saturable absorber for mode-locking an Er-doped fiber laser. Pulses with 1.4 ps full-width-half-maximum pulse width and 7 nm spectral bandwidth at 1560 nm were obtained.
During skeletal muscle development, correct cellular orientation is vital to generate desired longitudinal contraction for functional muscle fibres. In this reported study, submicron‐imprint lithography was used to generate submicron‐grooved surfaces on polystyrene plates to induce striated myotubes in vitro. Mouse mu…
Summary Dynamic crystallization (DC) is a fractionation technique to enhance physical separation of polymers with different chain crystallizabilities by crystallizing polymer chains from solution in a column under a constant flow rate. In this work, a mathematical model for describing fractionation mechanism of dynami…
We report that the silicon avalanche photodiode (APD) for electron detection almost fully recovers from the damage caused by electron irradiation by annealing. With the electron irradiation at an energy of 8 keV, a prominent increase of the non-amplified component of the dark current was observed, and the gain and ene…
Uniform dispersion of carbon nanotubes (CNTs) in metal composites has been by far the most significant challenge in the field of CNT-reinforced metal matrices. This work presents a new dispersion and fabrication technique of Carbon nanotubes (CNTs) reinforced copper (Cu) matrix nanocomposites. A combination of nanosca…
We have synthesized Au/CuO and Au/ZnO nanocomposites using the laser soldering technique. The process was carried out by irradiating a solution containing Au-CuO and Au-ZnO nanoparticles using 532 nm laser pulses of 0.1 J/cm 2 continuously for 20 minutes. The beam was focused using a 75 mm focal lens and the laser pow…
Using core-first strategy, the amphiphilic A4B4 star-shaped copolymers [poly(ethylene oxide)]4[poly(ε-caprolactone)]4 [(PEO)4(PCL)4], [poly(ethylene oxide)]4[poly(styrene)]4 [(PEO)4(PS)4], and [poly(ethylene oxide)]4[poly(tert-butyl acrylate)]4 [(PEO)4(PtBA)4] were synthesized by mechanisms transformation combining wi…