Since the early s, engineers and scientists have recognized that sulfur impurities cause nickel and other ductile metals, such as iron and steel, to fail at low stress levels.
Sulfur embrittlement of metals is of general technological importance because many engineered alloys are used in sulfur-bearing environments, such as the nickel-based high-temperature alloys used in next-generation coal-fired power plants for increasing energy efficiency. Researchers discovered that highly-ordered interfacial structures form at general grain boundaries in bismuth-doped nickel.
This includes the creation of new opportunities for businesses in hydrogen and fuel cells, and the development of high-skilled jobs that would be required in these businesses and for the operation and maintenance of the Hydrail System.
Examples include oxygen, sulfur, phosphorus and hydrogen embrittlement of other metals and alloys. The prototype would gather valuable feedback on operations, performance and reliability.
At the completion of these designs, Metrolinx will consider building a prototype that it could introduce into service. Interestingly, we found that these represent two extreme cases of interfacial structures—ordered versus disordered, respectively. The study investigated several topics, including the scale of the Hydrail System, costs, safety and implications of implementing this system, as well as the risks and opportunities involved.
Researchers have known that this embrittlement is related to the grain boundary segregation of sulfur, but the underlying atomic mechanisms have remained elusive.
For more information, visit www. The work is published July 17 in Nature Communications. Image courtesy of Jian Luo et al.
We do not undertake to update any forward-looking statements made herein. Next Steps Metrolinx is now working with train manufacturers Alstom and Siemens to produce concept designs that incorporate hydrogen fuel cells into bi-level EMU rail vehicles that would be used to provide the more frequent train service planned for the GO rail network.
Forward-looking statements Statements made in this release that are not based on historical fact are forward-looking statements. The discovery also enriches fundamental understanding of general grain boundaries that often control the mechanical and physical properties of polycrystalline materials.
They used a combination of aberration-corrected scanning transmission electron microscopy and semi-grand-canonical ensemble atomistic simulations.
The study aimed to determine whether it is technologically feasible and economically beneficial to use Hydrogen Fuel Cells HFCs as a power source for electrifying the GO rail network. Interested parties are encouraged to read the full report. Forward-looking statements, however, are inherently uncertain.
UC San Diego engineers have shed new light on these mechanisms by examining general grain boundaries in nickel polycrystals doped by sulfur. One key differentiator for the Hydrail System is the opportunity for broader benefits to Ontario in terms of economic development in the technology sector.
Luo is also affiliated with the Sustainable Power and Energy Center at UC San Diego, where he is working on materials related issues for both energy storage and energy efficiency.Graduate studies in the Department of Mechanical and Aerospace Engineering (MAE) lead to the M.S. and Ph.D. degrees in engineering sciences, with a specialization in one of the following areas: aerospace engineering, applied mechanics, applied ocean sciences, chemical engineering, computational science, engineering physics and mechanical.
Jacobs to study converting gas-fired plant unit to run on hydrogen. Equinor Energy AS has awarded Jacobs Engineering Group Inc. a feasibility study contract to. Jacobs Engineering Group Inc.
(Dallas, Tex.; killarney10mile.com) was awarded a feasibility study contract from Equinor Energy AS to evaluate the possibilities for building a hydrogen production plant, including CO 2 capture and export facilities, in Eemshaven, the Netherlands. The hydrogen will be.
The study was led by Jian Luo, a professor of nanoengineering and materials science and engineering at the UC San Diego Jacobs School of Engineering. The work is published July 17 in Nature Communications.
Jacobs Engineering Group Inc. (NYSE:JEC) has been awarded a contract for a pre-feasibility study, with the option of proceeding to a detailed feasibility study, for Kuwait Petroleum Corporation (KPC) and its subsidiaries. Graduate studies in the Department of Mechanical and Aerospace Engineering (MAE) lead to the M.S.
and Ph.D. degrees in engineering sciences, with a specialization in one of the following areas: aerospace engineering, applied mechanics, applied ocean sciences, chemical engineering, computational science, engineering physics and mechanical.Download