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 efficiency in an internal combustion engine ranges from 25% to 35%. About 40% of the overall fuel energy losses in a combustion engine are waste heat which is blown out with the exhaust gases and 30% is cooled away by the vehicle's radiator. Even if a small fraction of the waste heat could be turned into useful en…
The helium embrittlement behavior of 316FR austenitic stainless steel was investigated by a tensile test at 750°C using miniature tensile specimens, which were helium-implanted below 100°C up to 5, 30, and 100 appm using a cyclotron accelerator, and were post-implantation-annealed at 750°C for 10 and 100 h. The helium…
Theoretical Models for Magnetic Properties of Iron Pnictides Part II: Boson Formalism We analyze the J 1 - J 2 - J c Heisenberg model Hamiltonian by using the Dyson-Maleev representation for spin operators and keeping the terms quadratic in Bose operators (linear spin wave theory). From the resulting Hamiltonian we fi…
1-(2-thienyl ) 的二新第三的建筑群 -3-(p-phenylethynylphenyl)-1,3-propanedione (HTPP ) 和有 Sm3+ 和 Dy3+ 的 1,10-phenanthroline (phen ) 被综合。第三的建筑群的作文作为 Sm (TPP ) 3phen 和 Dy (TPP ) 被描绘 3phen，分别地由红外线(红外) 系列，化学分析，元素的分析，和热力学的分析。在房间温度，在紫外轻刺激下面， Sm3+ 和 Dy3+ 建筑群展出中央离子的典型排出物。Sm (TPP ) 3phen 的荧光紧张比 Dy (TPP ) 3phen 的强壮，这被发现。以便解释这现象，精确的量化学计算被…
Solid Oxide Fuel Cell is known as the most promising power generation technologies in the 21st century because of its high efficiency and zero pollution. For the multi-level thermal capacity lag and the strong interference of SOFC thermal management system, an effective control method (cascade control) is presented to…
The dry/wet NaCl+NaHSO3 atmosphere-salt spraying experiment of the aluminum conductor steel reinforced(ACSR) conductor was carried out to study the phases and microstructures of corrosion products and the corrosion mechanism in simulated air corrosion condition.The results show that the ACSR conductor is mainly corrod…
Ca1-xSrxMnO3(x=0,0.05,0.1)ceramic samples were prepared by using the sol-gel method and sintering in air with nitrales as starting materials.The phase composition,microstructure and electric properties of Sr doped samples were investigated.The results showed that the Ca1-xSrxMnO3 ceramic samples was single phase and h…
Biocompatible poly (gamma-benzyl-L-glutamate) modified hydroxyapatite/poly (L-lactide) (PLLA) nanocomosites were prepared via solvent-mixing method. Their melting and crystallization behavior were characterized by differential scanning calorimetry(DSC) and polarized optical microscopy(POM). The results show that the g…
In order to further expand the application of and deepen the study of Ti5551 titanium alloy the influences of varied heat treatment processes(β annealing and solution strengthening)on the mechanical properties and the microstructure of Ti55531 titanium alloy of large forgings were investigated through detections of me…
The passive film is produced on the surface of nickel-base alloy UNS N08028 using high-temperature and high-pressure corrosion at 100 ℃,130 ℃ and 150 ℃ separately,the electrochemical behaviors and semiconductive properties of three passive film samples in the corrosive solution of different contents of CO2 and Cl-unde…
CO 2 corrosion is one of the most important forms of corrosion in the oil and gas industry.However, the role of corrosion product layers in CO 2 corrosion remains poorly understood.In this thesis, the pseudo-passive effect of the CO 2 corrosion product layer on the steel surface has been investigated at elevated tempe…
Two carbon black-filled ethylene-propylene-diene-methylene linkage (EPDM) rubbers which have a different particle size were exposed to hydrogen gas; then, the critical pressures at the initiation of internal cracks (pF) were evaluated. It was obtained that pF = 4 - 5 MPa for two CB-filled rubbers by optical microscope…
We present a joint experimental and theoretical study on metal dusting phenomena in Ni binary alloys containing group-13, 14, and 15 elements in the periodic series. Laboratory metal dusting test of several Ni binary alloys was conducted in a simulated syngas atmosphere consisting of CO, H 2 , CO 2 , and H 2 O at 923…
Four kinds of Mg-x mass%Zn-y mass%Al (x=6, 8, 10, 12 and y=3, 4, 5, 6) alloys, each with a grain size of 2∼3 μm and containing quasicrystal phase particles, were successfully produced by casting and extrusion. These rare-earth free wrought processed magnesium alloys showed a reduction in mechanical asymmetry and a wea…
We have calculated the photonic bands of a dispersive and lossy periodic array of left-handed metamaterial layers in air. Depending on the behavior of the flelds inside the metamaterial component, two categories of modes for oblique propagation are identifled: the oscillatory and the tunneling modes. In order to chara…
A series of linear phenylene-based molecules, bearing carboxylic acid or carboxylate functionalities at both ends, were reacted with (hexadecylamine/stearate)-capped CdSe nanocrystals (7.5 nm diameter) dispersed in CHCl3 to form multilayers on ITO-glass surfaces via layer-by-layer (LBL) alternation. The new multilayer…
Thermal gravimetric analysis (TG) and differential thermal analysis (DTA) experiments were used to investigate the thermal decomposition characteristics and kinetics of polystyrene and polystyrene/fir, which are of potential interests for the development of renewable energy. The results show polystyrene takes place on…
The non-linear rheology of colloidal gels, glasses, and pastes is rather complex. For instance, colloidal glasses and pastes yield at a certain strain, followed by shear thinning. A detailed understanding of the yielding point, and what causes it, is lacking. Here, we perform constant shear rate rheology on a pre-shea…
Beam quality is described by "bucket-f" radius, rf, and angular radius θf, both encapsulating fraction f of total beam power. Dimensionless product rf · θf/λ depends on f and on beam shape. © 2011 OSA.
Martensitic to austenite transformation in Nitinol wire can be measured by a number of techniques such as XRD (X‐Ray Diffraction), DSC (Differential Scanning Calorimetry), BFR (Bend and Free Recovery) and Vickers indentation recovery. A comparison of results from these varied characterisation techniques is reported he…