Aerospace - Page 3

An international research team, led by Germany's Kiel University (CAU) and including scientists from the University of Southern Denmark, Technische Universität Dresden, University of Trento, Sixonia Tech and Queen Mary University of London, has used aero-graphene to develop a new method for the generation of controllable electrical explosions. "Aerographene" consists of a finely-structured tubular network based on graphene with numerous cavities. This makes it extremely stable, conductive and almost as lightweight as air.

The research team has now taken a major step toward practical applications. They have succeeded in repeatedly heating and cooling aerographene and the air contained inside it to very high temperatures in an extremely short period of time. This enables extremely powerful pumps, compressed air applications or sterilizing air filters in miniature.

A team of researchers at UBC Okanagan (UBCO), studying the burning rate of nanomaterials in liquid fuels, believe they have created a recipe for clean-burning, power-boosting aircraft fuel.

A droplet of fuel mixed with nanomaterials is ignited during an experiment in UBCO’s Combustion for Propulsion and Power Lab. Image credit: UBCO

The team is investigating the combustion characteristics of microscopic graphene oxide inside fuel. Their experiment measures the ignition delay, burn rate and speed by which the graphene particles and fuel separate into smaller particles. Working with our industry partner, ZEN Graphene Solutions, we are assessing how the burn rate of this mixture can potentially improve its combustion properties, explains lead author and doctoral student Sepehr Mosadegh.

Specialists at The University of Manchester have teamed up with global architect firm Skidmore, Owings & Merrill (SOM) to research the design and manufacturing of space habitats for the space industry.

The view from inside the viewing deck aboard the Graphene Space Habitat. Credit: SOM and U of Manchester

The international collaboration has Dr. Vivek Koncherry and his team (supported by the Manchester-based Graphene Engineering Innovation Centre) creating a scaled prototype of a graphene-enhanced space habitat with pressurized vessels designed to function in a space environment.

Iceni Labs, a spin-out from Imperial College London, has signed a Memorandum of Understanding (MoU) with Singapore’s 2D Materials (2DM) that will see the companies combine their respective expertise to develop and market graphene-based products for the defense, automotive and aerospace markets in Europe, North America and the Middle East.

Iceni Labs, a spin-out from Imperial College London, aims to exploit the properties of graphene for devices aimed at the defense market. 2DM manufactures graphene as an additive to enhance the properties of many industrial materials. The MoU will explore the potential to use 2DM’s graphene as an industrial additive to enhance the properties of Iceni Labs-developed industrial products including microphones, weapons optics devices and coatings.

Haydale has filed a joint patent with Airbus which covers the intellectual property jointly generated by Haydale and Airbus under the multi-party NATEP-supported Graphene Composites Evaluated in Lightning Strike Project, or GraCELS-2.

The group said that GraCELS-2 was designed to confirm that the 'incorporation of functionalized graphene/2D fillers could produce the next iteration of composite materials with significantly improved lightning strike performance compared to existing current carbon/epoxy systems alleviating the need for copper mesh'.

The European Space Agency (ESA) has announced that a project it has backed has yielded a combined temperature and magnetism sensor. Any time we can do more with less is a good result for the space sector, notes ESA materials specialist Ugo Lafont. Thanks to the unique properties of graphene, our prototype bi-functional sensor can measure magnetic field strength at the same time as taking temperature readings.

Prototypes of bi-functional sensor by ESA and AGP image

And our tests show the sensor operates reliably from room temperature down to 12 degrees Kelvin. Normally separate temperature sensors are required to accurately measure such wide temperature ranges, right down to cryogenic levels.

A new Australian battery casing company called Vaulta has announced that it is working with Quickstep, Australia’s largest independent aerospace advanced composites manufacturer, to develop smarter technology for renewables, manned and unmanned drones and electric flight.

The two Australian companies have signed a memorandum of understanding to pair Vaulta’s innovative graphene-enhanced cell casing technology with Quickstep’s manufacturing capability and market reach as it looks to move further into the high-growth market of electric-powered land and air vehicles. The two companies will be actively working together on a joint proposal for Australian Defense.

Orbex, a UK-based private, low-cost orbital launch services company, recently reported that it has secured $24 million in a funding round led by BGF (London) and Octopus Ventures (London). At the beginning of 2020, Orbex developed what it calls an "advanced, low carbon, high performance micro-launch" rocket called "Orbex Prime".

The new investments secure the roadmap to the first launch of Orbex’s vertical launch vehicle, Orbex Prime, from the Space Hub Sutherland spaceport in Scotland. Incorporating a wide range of advanced materials for its development, the launch vehicle boasts a 3D-printed rocket engine manufactured in a single piece without joins in partnership with additive manufacturer SLM Solutions (Lübeck, Germany). The vehicle is also built out of graphene-enhanced carbon fiber composites for the main structures and tanks.

Paragraf, UK-based graphene electronic sensors and devices company, announced that it is helping to realize an industry first by implementing a supply chain for graphene Hall-Effect sensors used in high-temperature Power Electronics, Electric Machines and Drives (PEMD) within the aerospace sector.

Named High-T Hall, the project stems from the UK Research and Innovation’s (UKRI) ‘Driving the Electric Revolution’ challenge and brings together Paragraf, Rolls-Royce, TT Electronics (Aero Stanrew) and the Compound Semiconductor Applications Catapult (CSA Catapult). It is set to demonstrate how graphene-based Hall Effect sensors can operate reliably at high temperatures, paving the way for more efficient electric engines in aerospace and beyond.

The MULTIMAL research project is developing a small device that can be used to rapidly identify malaria parasites using saliva samples, without the need for lab equipment. MULTIMAL is one of eight projects exploring new uses for graphene with support from ATTRACT, a €20 million EU-funded, CERN-led consortium, which has awarded 170 grants worth €100,000 each for one-year proof-of-concept technology projects.

Today’s portable malaria testing kits are just above flipping a coin, because they are right only 60 percent of the time, says MULTIMAL principal investigator Jérôme Bôrme. The disease, which the World Health Organisation says killed 435,000 people in 2017 (nearly all of them in Africa), is caused by five species of parasite that can be easily identified in a lab. But treating the disease in remote towns and villages is difficult because of the lack of reliable portable testing kits, explains Bôrme, MULTIMAL’s principal investigator and staff researcher at the International Iberian Nanotechnology Laboratory in Portugal, which runs MULTIMAL in collaboration with the University of Minho.