Results 61 to 70 of about 368,842 (254)

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Liquid hydrogen fuel system design for sustainable aviation applications

Green Energy and Sustainability
The growing interest in sustainable aviation has highlighted liquid hydrogen (LH2) as a promising alternative to conventional fuels. This study develops a systems level, conceptual approach to size and assess the key elements of an LH2 fuel system for a ...
Vasilis Karaiskos, Konstantinos Fotis, Zinon Vlahostergios, Dimitrios Misirlis, Kyros Yakinthos   +4 more
doaj   +1 more source

A study on hydrogen isotopes transport in a liquid metal GaInSn by plasma-driven permeation method

Nuclear Materials and Energy, 2017
The application of liquid metals such as gallium, tin and lithium as plasma-facing materials is a potential means to resolve the technical issues associated with power exhausting and particle handing in magnetic fusion devices.
Hailin Bi, Yoshi Hirooka, Juro Yagi, Yue Xu   +3 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Impact of Gas-Phase Space on Dynamic Thermal Characteristics of Onboard Liquid Hydrogen Tanks

Energies
Focusing on the thermodynamic response of onboard liquid hydrogen tanks under dynamic sloshing conditions, this study investigates the flow-thermal coupling mechanism between the gas-phase space and the main chamber by establishing a numerical model that
Hui Lv, Hua Ding, Hui Wu, Chaoyang Hao
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Study on Liquid Hydrogen Leakage Dispersion Behavior and Synergistic Mitigation by Barrier Walls and Air Curtains in a Hydrogen Production and Refueling Station

Fire
Compared with gaseous hydrogen at ambient temperature, liquid hydrogen (LH2) possesses a higher volumetric energy density and is therefore regarded as one of the most economically viable hydrogen storage and transportation options. However, the extremely
Xingyu Liu, Bo Yuan, Shiyan Zeng, Linzhi Xu, Chunyan Song, Nianfeng Xu, Tianqi Yang, Yonghua Cai, Jinsheng Xiao   +8 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Feasibility Study on Production of Slush Hydrogen Based on Liquid and Solid Phase for Long Term Storage

Energies
To achieve net-zero objectives, the expansion of renewable energy sources is anticipated to be accompanied by an increased use of carbon-free fuels, such as hydrogen.
Sungho Park, Changhyeong Lee, Sohmyung Chung, Seonghyeon Hwang, Jongwoong Lim, DaeJun Chang   +5 more
doaj   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source