Category Technology/Electronics

Engineers improve Fatigue Life of High Strength Aluminium Alloys by 25 times

Fig. 5
Cyclic training and microstructure evolution during cyclic training for the under aged (UA) alloys

A world-first study by Monash University engineers has demonstrated improvements in the fatigue life of high strength aluminium alloys by 25 times — a significant outcome for the transport manufacturing industry.

Published today (Thursday 15 October 2020) in the journal Nature Communications, researchers demonstrated that the poor fatigue performance of high strength aluminium alloys was because of weak links called ‘precipitate free zones’ (PFZs).

The team led by Professor Christopher Hutchinson, a Professor of Materials Science and Engineering at Monash University in Australia, was able to make aluminium alloy microstructures that can heal the weak links while in operation (i.e...

Read More

Researchers are working on Tech so Machines can Thermally ‘Breathe’

UCF researchers working on a cooling system for electronics
UCF mechanical and aerospace engineering researchers Khan Rabbi and Shawn Putnam are developing new ways to cool machines and electronics. Rabbi is a doctoral candidate in the department, and Putnam is an associate professor.

In the era of electric cars, machine learning and ultra-efficient vehicles for space travel, computers and hardware are operating faster and more efficiently. But this increase in power comes with a trade-off: They get superhot.

To counter this, University of Central Florida researchers are developing a way for large machines to “breathe” in and out cooling blasts of water to keep their systems from overheating.

The findings are detailed in a recent study in the journal Physical Review Fluids.

The process is much like how humans and some animals breath in...

Read More

Liquid Metals come to the Rescue of Semiconductors

New deposition approach: synthesising and exfoliating (transferring onto a silicon substrate for example) 2D semiconducting MoS2

Possible pathway to fast-switching, ultra-low energy electronics based on 2D materials. Two-dimensional semiconductors offer a possible solution to the limited potential for further shrinking traditional silicon-based electronics: the long-predicted end of ‘Moore’s Law’. 2D-based electronics, which could eliminate wasted dissipation of heat and allow for very fast, ultra-low energy operation, could be enabled by a new liquidmetal deposition technique.

Moore’s law is an empirical suggestion describing that the number of transistors doubles every few years in integrated circuits (ICs)...

Read More

New Solar Panel design could lead to Wider use of Renewable Energy

Checkerboard design of solar panel Credit: Dr Davide Zecca

Designing solar panels in checkerboard lines increases their ability to absorb light by 125%, a new study says. Researchers say the breakthrough could lead to the production of thinner, lighter and more flexible solar panels that could be used to power more homes and be used in a wider range of products.

The study — led by researchers from the University of York and conducted in partnership with NOVA University of Lisbon (CENIMAT-i3N) — investigated how different surface designs impacted on the absorption of sunlight in solar cells, which put together form solar panels.

Scientists found that the checkerboard design improved diffraction, which enhanced the probability of light being absorbed which is then used to create el...

Read More