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。
The optimum LF refining slag-52CaO,18Al2O316SiO29MgO,5CaF2for tube blank steel SA-210C (0. 18~0.24C,0.80～1. 10Mn) has obtained according to analysis on influence factors on fluxes viscosity and surface tension and by orthogonal test of which the viscosity and surface tension are 0.72 Pa · s and 0.43 N/m respectively.…
Influence of 0~6% BaO content on melting temperature, crystalline temperature and rate of mould pow- der with main ingredient 31.60CaO,27.20SiO₂,10.48C,4.85Al2O3and basicity 1.16 for casting Q235B, SS400 etc medium carbon steels by CSP flow sheet at Baotou Steel has been studied. Test results showed that added ≤2% BaO…
Due to complex and alternative impact load action during service the flaking and spalling occurred at sur- face of high manganese steel 1. 14C- 12.72Mn led to failure ahead of service time. With finite element analysis on internal stress conditions of railway frog by software ANSYS 8.0 it was obtained that maximum ver…
Based on measured data of steel plate rolled by single stand 2500 four high reversing mill, the prediction model for front end bending behavior has been established by artificial neural network method. Results showed that artificial neural network calculated value of plate front end bending during rolling conformed to…
The factors to effect change of free height of steel 44Si2CrV spring during long time loading for 72 h under stress to be lower than yield strength of steel has been studied. The results show that the reduction of free height of steel 44Si2CrV spring under compressive stress 900 MPa consists of two parts: plastic defo…
Precipitated phases,precipitated temperature and each phase content in SA508-3 steel -0. 19C,0.01~ 0.22Si,1.40~1.58Mn,0.65~0.76Ni,0.50～0.55Mo have been calculated by using Thermo-Calc thermodynamic soft- ware,and effect of Si and Mn-Ni-Mo content on precipitated phases in the steel was studied. The calculated results…
The research of effect of carbon powder, ferrosilicon (75% Si) powder and silicon carbide powder on scheelite (67. 25% W03) powder reduction kinetics has been carried out by 15 kW carbon tube furnace in laboratory. The results showed that scheelite reduced by carbon was second order reaction and the apparent activatio…
Alloy steel 40Cr is produced by 65 t Consteel EAF-65 t LF- 150 mm×150 mm billet costing flow sheet at Tonghua Steel. Examination and analysis results showed that oxygen content in liquid steel with LF refining decreased to 35×10-6from 227×10-6then during concasting the oxygen in molten steel in tundish increased to 51…
The effect of non-sinusoidal oscillation amplitude on liquid friction force in mold with casting speed 2. 0 m/min has been analyzed by a mathematical model of liquid friction combined a non-sinusoidal oscillation waveform with optimum mode virtue to get amplitude selection principle and determination method. The calcu…
The original rolling process for φ190 and φ200 mm stainless steel bars produced at Special Steel Co, Benxi Steel was by 800 primary mill blooming and finish-rolling from 3. 16 t ingot, by which the output of rolling products per hour was lower and the bars were easy twisted and scratched. At present the optimization p…
Influence factors on evolution of structure in hot rolled TRIP steels during TMP(Thermnomechanical processing)finishing rolling(austenite deformed in non-crystallization region),ROT(run out table)cooling(phase transformation in y-a two phase region)and coiling process (bainite transformation);evolution of structure of…
Martensite transformation and s- carbide precipitation in the steel DT300 -0.33C,1.78Si,0.76Mn, 5.78Ni,1. 10Cr,0.65Mo,0. 12V oil quenched at 840~960 ℃ and effect of quenching temperature on mechanical properties of 300 ℃ tempered steel have been tested and analyzed. Results showed that complete lath martensite and exc…
UNLABELLED: Antibody (mAb)-linked iron oxide nanoparticles (bioprobes) provide the opportunity to develop tumor specific thermal therapy (Rx) for metastatic cancer when inductively heated by an externally applied alternating magnetic field (AMF). To evaluate the potential of this Rx, in vivo tumor targeting, efficacy,…
Monodisperse and stable cobalt ferrite (CoFe2O4) nanoparticles (5.4 nm) have been produced, coated with mono- and difunctional phosphonic and hydroxamic acids, and fully characterized (using thermogravimetric analysis (TGA), dynamic light scattering (DLS), IR spectroscopy, transmission electron microscopy (TEM), and s…
With a simple reaction pathway, a polymerizable solvatochromic dye monomer was synthesized. Copolymerization of this dye monomer with N i PAAM leads to formation of a solvatochromic copolymer with lower critical solution temperature (LCST) behavior. This resulting copolymer visualizes via a red-orange color change (a)…
The electron spin lifetime and diffusion length are transport parameters that define the scale of coherence in spintronic devices and circuits. Since these parameters are many orders of magnitude larger in semiconductors than in metals, semiconductors could be the most suitable for spintronics. Thus far, spin transpor…
We report a systematic study of the bias-dependent contact resistance in rubrene single-crystal field-effect transistors with Ni, Co, Cu, Au, and Pt electrodes. We show that the reproducibility in the values of contact resistance strongly depends on the metal, ranging from a factor of two for Ni to more than three ord…
Three terminal single-electron transistor devices utilizing Al/Al2O3 gate electrodes were developed for the study of electron transport through individual single-molecule magnets. The devices were patterned via multiple layers of optical and electron beam lithography. Electromigration induced breaking of the nanowires…
We present experimental results on Bi2FeCrO6 (BFCO) epitaxial films deposited by laser ablation directly on SrTiO3 substrates. It has been theoretically predicted by Baettig and Spaldin [Appl. Phys. Lett. 86 012505 (2005)], using first-principles density functional theory, that BFCO is ferrimagnetic (with a magnetic m…
High-frequency needle ultrasound transducers with an aperture size of 0.4 mm were fabricated using lead magnesium niobate-lead titanate (PMN-33% PT) as the active piezoelectric material. The active element was bonded to a conductive silver particle matching layer and a conductive epoxy backing through direct contact c…