Materials Literature
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Geometrical phase or the fourth generation (4G) optics enables realization of optical components (lenses, prisms, gratings, spiral phase plates, etc.) by patterning the optical axis orientation in the plane of thin anisotropic films. Such components exhibit near 100% diffraction efficiency over a broadband of waveleng…
We present a broadband tunable polarization converter in terahertz (THz) frequency based on a hybrid metamaterial comprising I-shaped metallic resonators and double layer graphene sheets. The proposed device can dynamically switch its functionalities among linear-to-linear, linear-to-circular, and linear-to-elliptical…
Porous polymer particles with multilevel structures consisting of submicron-sized hollow cavities and interconnected mesopores within the crosslinked shell were designed and prepared. An extremely high density of anhydride groups in the crosslinked shell can be conveniently converted into versatile functional groups f…
We use magnetic-field-dependent features in the photoluminescence of negatively charged nitrogen-vacancy centers to measure magnetic fields without the use of microwaves. In particular, we present a magnetometer based on the level anti-crossing in the triplet ground state at 102.4 mT with a demonstrated noise floor of…
Abstract Investigation of the organization of interlayer water and cations in smectite is a permanent topic in clay science for environmental science, civil engineering, materials science, and industrial applications. Experimental X-ray (or neutron) diffraction methods and molecular simulations are key techniques to p…
High-performance polypropylene (PP) plays an important role in electrical/electronic engineering fields. Especially in high voltage direct current (HVDC) cables it compares well to cross linked polyethylene (XLPE) for its potential application as an eco-friendly material without cross-linking. The space charge injecti…
It is well known that trace element sensitivity in electron probe microanalysis (EPMA) is limited by intrinsic random variation in the X-ray continuum background and weak signals at low concentrations. The continuum portion of the background is produced by deceleration of the electron beam by the Coulombic field of th…
It is obtained by coexistence theory calculation and thermodynamics analysis that the slag-steel phosphorus partition ratio Lp of compound dephosphorizing slag CaO-MgO-FeO-Li2O-Na2O-K2O-SiO2-P2O5is obviously higher than that of basic dephosphorizing slag series CaO-MgO-FeO-SiO2-P2O5and defined that the optimum adding…
In order to recover and apply the cutting scrap of die steel H13 and increase the yield of Cr, Mo, V etc alloy elements, the die steel H13 is melted by return cutting scrap method in 50 t medium frequency induction furnace- LF- VD flowsheet. The effect of curing pressed block and low vacuum melting process on Cr yield…
The ingredient, phases, morphology and exfoliation mechanism of oxide formed at steam-side of Φ90 mm x 10 mm tube of steel T91 (/% : 0. 10C, 0. 35Si, 0. 43Mn, 7. 85Cr, 0. 81 Mo, 0. 24V) for supercritical power unit in vapour at 571. 5 ℃ vapour served for 28800h have been analyzed and studied by optical microscope, sca…
The static recrystallization behavior of steel 30CrMo 60 mm casting slab in interval between double-pass of hot deformation has been tested and studied by Thermecmastor-Z thermal simulator and double-pass compressed method to analysis the effect of temperature (1000 ~ 1150℃),deformation (0.1-0.22) , strain rate ( 0.1-…
With microalloying composition design, intermediate test： 2 t medium frequency furnace-680 kg ingot forging and rolling-φ94 mm x5. 2 mm shell-cold drawn to φ89 mm x 5 mm tube-normalizing at 880°C , and commercial production: 50 t EBT EAF-LF-VD-210 mm x280 mm billet casting- rolled to φ 75 mm tube stock- piercing to φ…
The metallurgical flowsheet for steel S355NL for wind power flange (/% : 0.14-0.48C, 0.15-0.40Si, 1.30-1.60Mn, ≤0.013P, ≤0.005S, 0.04-0.12V, 0.03-0.05Nb, ≤0.009Ti, ≤0.30Cr, ≤0.50Ni, ≤0.20Cu, ≤0.10Mo, ≥0.020Alt) is 100t UHP EAF-LF-VD-Φ650 mm, Φ800 mm bloom CC process. The results of analysis on unqualified steel by non…
The test new type steel 616 containing Ce (/% : 0. 23 ~0. 25C, 0.73 - 0. 78Si, 1. 64 ~ 1. 70Mn, 0.003 ~0.005S, 0.016-0.020P, 0.051 ~0.061Ti, 0. 026 ~0.028Nb, 0.002 0 -0.0030B, 0~0.302Ce) is melted by a 10 kg vacuum induction furnace, rolled to 5mm thickness plate, water-quenched at 900 ℃. and tempered at 600 °C. The e…
The tested magnetic pure iron (/% ： 0. 002 - 0. 004C, 0. 01-0.02Si, 0. 04 - 0. 05Mn, 0. 005S, 0. 006 - 0. 009P, 0. 41 - 1. 16Al) is melted by 200 kg vacuum induction furnace, hot-rolled to 6. 0 mm plate and cold- rolled to 3. 0 mm sheet. The effect of aluminium content (0. 41% - 1. 16% Al) and magnetic-performance ann…
The metallurgical flowsheet for developed cold heading steel QB3O wire-rod (/% ： 0. 27 〜0. 32C,≤0. 20Si, 0. 90 ~ 1. lOMn,≤0. 020P,≤ 0. 020S) is hot metal pre-desulphurization- 80 t BOF- LF- RH vacuum degassing- 4 strands 280 mm x 325 mm bloom casting- stacking cooling- blooming- grinding- high speed wire rolling proce…
Corrosion-resisting properties of maraging stainless steel 00Crl3Ni7Co5Mo4W (/% : 0. 007C, 13. 23 Cr, 7. 02Ni, 5. 06Co, 3. 72Mo, 0. 96W) melted by 50 kg VIM and solid-solution treated at 1 100 °C for 1 h + aged at 450 ~ 510 fbr 8 h are studied by using potentiodynamic polarization curves and uniform corrosion immersio…
The deformation process of thin strip rolling by hot-rolled rod is simulated and tested by Φ130 mm two-high rolling mill in laboratory using Φ11 mm lead bar to replace hot-rolling rod. Result show that for thickness of thin strip is 1.2 mm the spread can increase by 35.37% by using longitudinal-rolling method, and wit…
The one of key issue for development of acidic-corrosive oil and gas field is to use H2S stress corrosion cracking resistant seamless steel tube. The research and development of special seamless steel tubes for acidic oil and gas field are carried out at main tube enterprises at home and abroad. The present status of…
The tested spring steel 65Si2CrV (/% : 0. 66C, 1. 43Si, 0. 74Mn, 0. 007P, 0. 008S, 0. 68Cr, 0. 11V) is melted by 25 kg vacuum induction fumace and rolled to 16 mm x300 mm slab. The static continuous cooling transformation (CCT) curves of spring steel 65Si2CrV is obtained by Gleeble-2000 thermal simulation testing mach…