![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
Effect of Coupling Low-Flow Pouring with Inoculation on the As-Cast Microstructure of 7055 Alloys
Achieving uniform grain size in ingots is challenging in traditional direct chill (DC) casting. The thermal conditions during solidification often result in smaller grain size at the edge of the ingot compared...
-
Article
The Study on Flow Field Simulation and WC-12Co Multi-layer Coating Growth in High-Velocity Oxygen-Fuel (HVOF) Thermal Spraying
HVOF has unique advantages as spraying metal carbides and alloys and is widely used in the aerospace, national defense industry, iron and steel metallurgy, petrochemical industry and other fields. The WC-Co co...
-
Article
Resting temperature of PbI2 in perovskite solar cells
In the two-step preparation of perovskite solar cells, the ambient temperature is the main factor affecting the performance of the cells and controlling the crystallization of perovskite films. In this paper, ...
-
Article
Optimize two-phase distribution of lithium-rich materials to stabilize structure and suppress voltage attenuation
Lithium-rich materials possess the ultra-high specific capacity, but the redox of oxygen is not completely reversible, resulting in voltage attenuation and structural instability. A stepwise co-precipitation m...
-
Article
Controllable wettability surface of ZnO nanorods on glass substrates prepared by simple wet chemical method for patterned processing
The surface wettability can be well controlled by coatings and roughness. In this work, we prepared ZnO film and nanorods with different precursor concentration range from 0.002 mol/L, 0.02 mol/L to 0.2 mol/L ...
-
Article
Multicomponent transition metal phosphide for oxygen evolution
Transition metal phosphides (TMPs) have exhibited decent performance in an oxygen evolution reaction (OER), which is a kinetic bottleneck in many energy storages and conversion systems. Most reported catalysts...
-
Article
Petroleum coke as reductant in co-reduction of low-grade laterite ore and red mud to prepare ferronickel: Reductant and reduction effects
Petroleum coke is industrial solid wastes and its disposal and storage has been a great challenge to the environment. In this study, petroleum coke was utilized as a novel co-reduction reductant of low-grade l...
-
Article
Fabrication and properties of NaNbO3 sintered by two-step method
Ferroelectric phase has been discovered in dense sodium niobate NaNbO3 ceramic sintered by two-step method. At ambient temperature, its absolute principal rhombohedral phase R3c rather than antiferroelectric phas...
-
Article
Effects of thiourea dosage on the structural, optical and electrical properties of one-step solution processed Cu3BiS3 film for photovoltaics
Recently, Cu3BiS3 has emerged as an attractive photovoltaic material with low cost and excellent light absorption. However, its device application is still hindered by relatively poor material quality. Here, a on...
-
Article
Metal-doped (Cu,Zn)Fe2O4 from integral utilization of toxic Zn-containing electric arc furnace dust: An environment-friendly heterogeneous Fenton-like catalyst
Pure metal-doped (Cu,Zn)Fe2O4 was synthesized from Zn-containing electric arc furnace dust (EAFD) by solid-state reaction using copper salt as additive. The effects of pretreated EAFD-to-Cu2(OH)2CO3·6H2O mass rat...
-
Article
A circular-polarized metasurface planar reflector antenna based on Pancharatnam–Berry phase
Due to the significance of circular-polarized antennas for satellite communications applications, a planar circular-polarized reflector antenna is proposed in this paper, which consists of a circular polarizat...
-
Article
Efficient orbital angular momentum vortex beam generation by generalized coding metasurface
A method to efficiently generate orbital angular momentum (OAM) vortex beam is proposed by introducing generalized coding metasurface (CM). Firstly, a linearly polarized (LP) cross-polarization transmission un...
-
Article
Design of reducing mutual coupling in between two closely spaced dual-frequency antennas based on combined electromagnetic soft surfaces
In this paper, two closely spaced dual-frequency antennas are developed using the combined electromagnetic soft surfaces loading techniques for reducing their mutual coupling. The dual-frequencies antenna is d...
-
Article
Constitutive Modeling and Activation Energy Maps for a Continuously Cast Hyperperitectic Steel
An appropriate experimental scheme and an accurate constitutive model are the two key factors that determine the success or failure of the constitutive equations used to simulate hot deformation behavior durin...
-
Article
Flake-like oxygen-deficient lithium vanadium oxides as a high ionic and electronic conductive cathode material for high-power Li-ion battery
Low electronic and ionic conductivity for LiV3O8 cathode material could lead to poor cycling stability and rate capability, which are considered as the main restraint for its application in Li-ion battery. A nove...
-
Article
Embrittlement of Intercritically Reheated Coarse Grain Heat-Affected Zone of ASTM4130 Steel
In this investigation, a thermal welding simulation technique was used to investigate the microstructures and mechanical properties of the intercritically reheated coarse grain heat-affected zone (IR CGHAZ) of...
-
Article
Formation energies of substitutional NAs and split interstitial complexes in dilute GaAsN alloys with different growth orientations
To quantitatively evaluate the formation energies of the (N–N)As/(N–As)As/(As–As)As split interstitials in dilute GaAsN alloys, first-principles total-energy calculations using a projector augmented wave method a...
-
Article
Molecular dynamics simulations on tensile behaviors of single-crystal bcc Fe nanowire: effects of strain rates and thermal environment
Molecular dynamics simulations were applied to investigate tensile behaviors of single-crystal Fe nanowire in 〈001〉 direction under different strain rates. Results show that the nanowire deforms by twinning wi...
-
Article
Four-Phase Dendritic Model for the Prediction of Macrosegregation, Shrinkage Cavity, and Porosity in a 55-Ton Ingot
A four-phase dendritic model was developed to predict the macrosegregation, shrinkage cavity, and porosity during solidification. In this four-phase dendritic model, some important factors, including dendritic...
-
Article
Structural, magnetic and electrical transport properties in electron-doped La0.85Hf0.15MnO3 epitaxial film
Using a pulsed laser deposition method, the electron-doped La0.85Hf0.15MnO3 (LHMO) film with the thickness of 90 nm was epitaxially grown on LaAlO3 (001) single crystal substrate. The structural, magnetic and ele...