NASA licențiază superaliajul GRX-810 către patru companii americane

BY: stiridinromania.ro In Magazin
Astronaut Victor Glover, far right, and Bill Hill, second from right, director of safety and mission assurance at NASA’s Marshall Space Flight Center join Marshall honorees for a photo op at the Space Flight Awareness Honoree Ceremony on May 4 in Orlando, Florida. Honoree awards recognize civil servants and industry partners for outstanding work and dedication to astronaut safety. From left, Cody Goodman, David Starrett, John Ivester, Lisa Hughes, Greg Snell, Megan Vansant, Megan Hines, Karl Nelson, Les Johnson, Shawn Reagan, Hill, and Glover. Marshall honorees also include Maggie Freeman, who was unable to attend the awards event.

NASA, Boeing și echipele ULA (United Launch Alliance) continuă să lucreze la sarcinile rămase în pregătirea pentru testul de zbor al echipajului Boeing către Stația Spațială Internațională. Echipele vizează acum o dată de lansare nu mai devreme de 3:43 p.m. CDT pe 21 mai pentru a finaliza testele suplimentare. Pe 11 mai, echipa ULA a înlocuit cu succes o supapă de reglare a presiunii pe rezervorul de oxigen lichid de pe etajul superior Centaur al rachetei Atlas V. Echipa a efectuat, de asemenea, presurizare și purjări de sistem și a testat noua supapă, care a funcționat în mod normal. Astronauții NASA Butch Wilmore și Suni Williams, încă în carantină prelansare, s-au întors la Houston pe 10 mai pentru a petrece mai mult timp cu familiile lor pe măsură ce operațiunile prelansare progresează. Cei doi se vor întoarce la Centrul Spațial Kennedy al NASA în zilele următoare. Wilmore și Williams sunt primii care vor fi lansați la bordul navei Starliner a Boeing către stația spațială ca parte a Programului de Echipaj Comercial al agenției. Astronauții vor petrece aproximativ o săptămână la laboratorul orbital înainte de a se întoarce pe Pământ și de a ateriza cu ajutorul unor parașute și airbag-uri în sud-vestul Statelor Unite. După finalizarea cu succes a misiunii, NASA va începe procesul final de certificare a Starliner și a sistemelor sale pentru misiunile cu echipaj la stația spațială.

Investiția NASA într-un superaliaj inovator dezvoltat pentru temperaturile extreme și condițiile dure ale zborului aerian și spațial este pe punctul de a plăti dividende comerciale. Agenția își licențiază invenția, numită “GRX-810”, la patru companii americane, o practică care aduce beneficii economiei Statelor Unite ca un randament al investiției de dolari contribuabili. GRX-810 este un material 3D imprimabil la temperaturi ridicate care va duce la piese de avion și navă spațială mai puternice, mai durabile, care pot rezista la mai multe lovituri înainte de a ajunge la punctul lor de rupere. Acordurile de licență co-exclusivă vor permite companiilor să producă și să comercializeze GRX-810 la producătorii de echipamente pentru avioane și rachete, precum și întregul lanț de aprovizionare.

GRX-810 este un exemplu al multor tehnologii noi pe care managerii Programului de Transfer Tehnologic al NASA le revizuiesc și le depun pentru protecție prin brevet. Echipa lucrează, de asemenea, cu inventatorii pentru a găsi parteneri interesați de comercializare. “NASA investește dolari contribuabili în cercetare care demonstrează beneficii directe pentru SUA și își transferă tehnologiile în industrie prin licențierea brevetelor sale”, a declarat Amy Hiltabidel, manager de licențiere la Centrul de Cercetare Glenn al NASA. Inginerii NASA au proiectat GRX-810 pentru aplicații aerospatiale, inclusiv injectoare de motoare cu rachete lichide, combustori, turbine și componente pentru secțiuni fierbinți capabile să reziste la temperaturi de peste 2.000 de grade Fahrenheit. “GRX-810 reprezintă un nou spațiu de proiectare a aliajelor și o tehnică de fabricație care era imposibilă acum câțiva ani”, a spus Tim Smith, cercetător de materiale la NASA Glenn. Smith a co-inventat superaliajul împreună cu colegul său de la Glenn, Christopher Kantzos, folosind un proces de modelare pe computer și de imprimare laser 3D care fuzionează metalele împreună, strat cu strat. Particulele mici care conțin atomi de oxigen se răspândesc în întregul aliaj și îi îmbunătățesc rezistența. Față de alte aliaje pe bază de nichel, GRX-810 poate suporta temperaturi și stresuri mai mari și poate dura de până la 2.500 de ori mai mult. De asemenea, este de aproape patru ori mai bun la flexibilitate înainte de rupere și de două ori mai rezistent la deteriorarea prin oxidare. “Adoptarea acestui aliaj va duce la o aviație și explorare spațială mai durabile”, a spus Dale Hopkins, manager adjunct de proiect al proiectului NASA de Instrumente și Tehnologii Transformaționale. “Acest lucru se datorează faptului că componentele motoarelor cu reacție și rachetelor realizate din GRX-810 vor reduce costurile de exploatare prin durata lor mai lungă de viață și îmbunătățirea eficienței totale a combustibilului.” Echipele de cercetare și dezvoltare includ pe cele de la Glenn, Centrul de Cercetare Ames al NASA, Universitatea de Stat Ohio și Centrul de Zbor Spațial Marshall al NASA, unde cele mai recente teste au inclus…

Navy Adm. Christopher Grady, vice chairman of the Joint Chiefs of Staff, his wife Christine Grady, and son Luke Grady talk with Nick Benjamin, right, a payload operations director for the International Space Station, at the Payload Operations Integration Center during the vice chairman’s tour of NASA’s Marshall Space Flight Center on May 6. (NASA/Charles Beason)

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Astronaut Victor Glover, far right, and Bill Hill, second from right, director of safety and mission assurance at NASA’s Marshall Space Flight Center join Marshall honorees for a photo op at the Space Flight Awareness Honoree Ceremony on May 4 in Orlando, Florida. Honoree awards recognize civil servants and industry partners for outstanding work and dedication to astronaut safety. From left, Cody Goodman, David Starrett, John Ivester, Lisa Hughes, Greg Snell, Megan Vansant, Megan Hines, Karl Nelson, Les Johnson, Shawn Reagan, Hill, and Glover. Marshall honorees also include Maggie Freeman, who was unable to attend the awards event. (NASA)

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NASA, Boeing, and ULA (United Launch Alliance) teams continue working remaining open tasks in preparation for the agency’s Boeing Crew Flight Test to the International Space Station. The teams now are targeting a launch date of no earlier than 3:43 p.m. CDT May 21, to complete additional testing.

On May 11, the ULA team successfully replaced a pressure regulation valve on the liquid oxygen tank on the Atlas V rocket’s Centaur upper stage. The team also performed re-pressurization and system purges, and tested the new valve, which performed normally.

The Atlas V and Starliner remain in the Vertical Integration Facility at Space Launch Complex-41 on Cape Canaveral Space Force Station.

NASA astronauts Butch Wilmore and Suni Williams, still in preflight quarantine, returned to Houston on May 10 to spend extra time with their families as prelaunch operations progress. The duo will fly back to NASA’s Kennedy Space Center in the coming days.

Wilmore and Williams are the first to launch aboard Boeing’s Starliner to the space station as part of the agency’s Commercial Crew Program. The astronauts will spend about a week at the orbiting laboratory before returning to Earth and making a parachute and airbag-assisted landing in the southwestern United States.

After successful completion of the mission, NASA will begin the final process of certifying Starliner and its systems for crewed rotation missions to the space station.

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Not many music majors get to be hands-on with building a Moon rocket, but Lauren Fisher has always enjoyed the unusual.

Now a structural materials engineer at NASA’s Marshall Space Flight Center, Fisher works on a key adapter for NASA’s SLS (Space Launch System) rocket for the first crewed missions of NASA’s Artemis campaign.

Manufactured at Marshall by NASA, lead contractor Teledyne Brown Engineering, and the Jacobs Space Exploration Group’s ESSCA contract, the cone-shaped launch vehicle stage adapter partially encloses the rocket’s interim cryogenic propulsion stage and connects it to the core stage below and the Orion stage adapter above. The launch vehicle stage adapter also protects avionics and electrical devices from extreme vibration and acoustic conditions during launch and ascent.

Fisher and the thermal protection system team develop and apply the spray-on foam that acts as insulation and protects the adapter and all its systems from the extreme pressures and temperatures it’ll face during flight. The thermal protection system for the component, unlike other parts of the rocket, is applied by hand using a spray gun. When first applied, the insulation is yellow, but after time and exposure to the Sun, it turns orange.

“We’re taking the same stuff someone might use to insulate their attic, except making it for cryogenic atmospheres, and spraying it all over a giant piece of hardware that will help launch us to the Moon,” Fisher said. “With my work for NASA’s Space Launch System rocket, I get to play with foam and glue. I like to call it arts and crafts engineering!”

Although engineering runs in her family, Fisher initially graduated from University of Southern Mississippi with a Bachelor of Arts in music performance and an interest in music education. She developed an interest in carbon-based polymers, and decided to go back to school, completing a chemical engineering degree with a polymeric materials track from the University of Alabama in Huntsville. Her new degree led to an opportunity to work for the thermal protection system team at Marshall.

When Fisher isn’t in the office, she likes travelling to unusual places and checking items off her self-described “Bizarre Bucket List.” Recently, she went to Punxsutawney, Pennsylvania, to watch the famous groundhog predict an early spring.

Being part of the Artemis Generation is incredibly inspiring for Fisher, who takes pride in her work supporting the first three Artemis missions, including Artemis II, the first crewed mission under Artemis, in 2025.

“I’m literally building the hardware that will send the first woman to deep space,” Fisher says. “Watching our rocket take shape, I’m like ‘you see that thing? I did that; that’s mine. See that one? My team did that one. We did that, and see this?’” She beams with pride. “You can do that, too. Just being a part of the generation that’s changing the workforce and changing the space program  it gives me goosebumps.”

NASA is working to land the first woman, first person of color, and its first international partner astronaut on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft and Gateway in orbit around the Moon and commercial human landing systems, next-generational spacesuits, and rovers on the lunar surface. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single launch.

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NASA’s investment in a breakthrough superalloy developed for the extreme temperatures and harsh conditions of air and spaceflight is on the threshold of paying commercial dividends.

The agency is licensing its invention, dubbed “GRX-810,” to four American companies, a practice that benefits the United States economy as a return on investment of taxpayer dollars.

GRX-810 is a 3D-printable high-temperature material that will lead to stronger, more durable airplane and spacecraft parts that can withstand more punishment before reaching their breaking point.

The co-exclusive license agreements will allow the companies to produce and market GRX-810 to airplane and rocket equipment manufacturers as well as the entire supply chain.

The four co-exclusive licensees are:

  • Carpenter Technology Corporation of Reading, Pennsylvania
  • Elementum 3D, Inc. of Erie, Colorado
  • Linde Advanced Material Technologies, Inc. of Indianapolis
  • Powder Alloy Corporation of Loveland, Ohio

GRX-810 is one example of many new technologies NASA’s Technology Transfer Program managers review and file for patent protection. The team also works with inventors to find partners interested in commercialization. 

“NASA invests tax dollars into research that demonstrates direct benefit to the U.S. and transfers its technologies to industry by licensing its patents,” said Amy Hiltabidel, licensing manager at NASA’s Glenn Research Center.

NASA engineers designed GRX-810 for aerospace applications, including liquid rocket engine injectors, combustors, turbines, and hot-section components capable of enduring temperatures over 2,000 degrees Fahrenheit.

“GRX-810 represents a new alloy design space and manufacturing technique that was impossible a few years ago,” said Tim Smith, materials researcher at NASA Glenn.

Smith co-invented the superalloy along with his Glenn colleague Christopher Kantzos using a time-saving computer modeling and laser 3D-printing process that fuses metals together, layer-by-layer. Tiny particles containing oxygen atoms spread throughout the alloy enhance its strength.

Compared to other nickel-base alloys, GRX-810 can endure higher temperatures and stress and can last up to 2,500 times longer. It’s also nearly four times better at flexing before breaking and twice as resistant to oxidation damage.

“Adoption of this alloy will lead to more sustainable aviation and space exploration,” said Dale Hopkins, deputy project manager of NASA’s Transformational Tools and Technologies project. “This is because jet engine and rocket components made from GRX-810 will lower operating costs by lasting longer and improving overall fuel efficiency.”

Research and development teams include those from Glenn, NASA’s Ames Research Center, Ohio State University, and NASA’s Marshall Space Flight Center, where the most recent testing included 3D-printed rocket engine parts.

Marshall completed a successful hot-fire test series at Test Stand 115 in 2023. This test series demonstrated GRX-810 injectors and regeneratively cooled nozzles for liquid rocket engines. The center is working to advance additive manufacturing for propulsion applications, but also developing 3D-printing technologies to deploy in space for manufacturing. Marshall has capabilities for the entire design, analysis, manufacturing, hot- fire testing, and certification lifecycle of complex additively manufactured propulsion components and engine systems to enable high performance for NASA, government, and commercial space missions.

NASA develops many technologies to solve the challenges of space exploration, advance the understanding of our home planet, and improve air transportation. Through patent licensing and other mechanisms, NASA has spun off more than 2,000 technologies for companies to develop into products and solutions supporting the American economy.

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The foundation is set at NASA’s Kennedy Space Center for launching crewed missions aboard the agency’s larger and more powerful SLS (Space Launch System) Block 1B rocket in support of Artemis IV and future missions. On May 9, teams with NASA’s EGS (Exploration Ground Systems) Program and contractor Bechtel National Inc. transferred the primary base structure of the mobile launcher 2 to its permanent mount mechanisms using the spaceport’s beast-mode transporter – the crawler.  

The mobile launcher serves as the primary interface between the ground launch systems, SLS rocket, and Orion spacecraft that will launch the SLS Block 1B rocket, with its enhanced upper stage, to the Moon, allowing the agency to send astronauts and heavier cargo into lunar orbit than its predecessor, SLS Block 1. With Artemis, NASA will land the first woman, first person of color, and its first international partner astronaut on the lunar surface and establish long-term exploration for scientific discovery and to prepare for human missions to Mars.  

NASA’s Marshall Space Flight Center manages the SLS Program.

Read more about the mobile launcher.

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Recent images show evidence for an exhaust vent attached to a chimney releasing hot gas from a region around the supermassive black hole at the center of the Milky Way, as reported in a press release. In the main image of this graphic, X-rays from NASA’s Chandra X-ray Observatory (blue) have been combined with radio data from the MeerKAT telescope (red).

Previously, astronomers had identified a “chimney” of hot gas near the Galactic Center using X-ray data from Chandra and ESA’s XMM-Newton. Radio emission detected by MeerKAT shows the effect of magnetic fields enclosing the gas in the chimney.

The evidence for the exhaust vent is highlighted in the inset, which includes only Chandra data. Several X-ray ridges showing brighter X-rays appear in white, roughly perpendicular to the plane of the Galaxy. Researchers think these are the walls of a tunnel, shaped like a cylinder, which helps funnel hot gas as it moves upwards along the chimney and away from the Galactic Center.

A labeled version of the image gives the locations of the exhaust vent, the chimney, the supermassive black hole at the center of the Milky Way Galaxy (called Sagittarius A*, or Sgr A* for short) and the plane of the galaxy.

This newly discovered vent is located near the top of the chimney about 700 light-years from the center of the Galaxy. To emphasize the chimney and exhaust vent features the image has been rotated by 180 degrees from the conventional orientation used by astronomers, so that the chimney is pointed upwards.

The authors of the new study think that the exhaust vent formed when hot gas rising through the chimney struck cooler gas lying in its path. The brightness of the exhaust vent walls in X-rays is caused by shock waves – like sonic booms from supersonic planes – generated by this collision. The left side of the exhaust vent is likely particularly bright in X-rays because the gas flowing upwards is striking the tunnel wall at a more direct angle and with more force than other regions.

The researchers determined that the hot gas is most likely coming from a sequence of events involving material falling towards Sgr A*. They think eruptions from the black hole then drove the gas upwards along the chimneys, and out through the exhaust vent.

It is unclear how often material is falling onto Sgr A*. Previous studies have indicated that dramatic X-ray flares take place every few hundred years at or near the location of the central black hole, so those could play important roles in driving the hot gas upwards through the exhaust vent. Astronomers also estimate that the Galactic black hole rips apart and swallows a star every 20,000 years or so. Such events would lead to powerful, explosive releases of energy, much of which would be destined to rise through the chimney vent.

The paper describing these results is published in The Astrophysical Journal and a preprint is available online. The authors of the paper are Scott Mackey (University of Chicago), Mark Morris (University of California, Los Angeles), Gabriele Ponti (Italian National Institute of Astrophysics in Merate), Konstantina Anastasopoulou (Italian National Institute of Astrophysics in Palermo), and Samaresh Mondal (Italian National Institute of Astrophysics in Merate).

NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

Read more from NASA’s Chandra X-ray Observatory.

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NASA’s Juno mission captured new views of Jupiter during its 59th close flyby of the giant planet on March 7. They provide a good look at Jupiter’s colorful belts and swirling storms, including the Great Red Spot. Close examination reveals something more: two glimpses of the tiny moon Amalthea.

With a radius of just 52 miles, Amalthea has a potato-like shape, lacking the mass to pull itself into a sphere. In 2000, NASA’s Galileo spacecraft revealed some surface features, including impact craters, hills, and valleys. Amalthea circles Jupiter inside Io’s orbit, which is the innermost of the planet’s four largest moons, taking 0.498 Earth days to complete one orbit.

Amalthea is the reddest object in the solar system, and observations indicate it gives out more heat than it receives from the Sun. This may be because, as it orbits within Jupiter’s powerful magnetic field, electric currents are induced in the moon’s core. Alternatively, the heat could be from tidal stresses caused by Jupiter’s gravity.

At the time that the first of these two images was taken, the Juno spacecraft was about 165,000 miles above Jupiter’s cloud tops, at a latitude of about 5 degrees north of the equator.

Citizen scientist Gerald Eichstädt made these images using raw data from the JunoCam instrument, applying processing techniques to enhance the clarity of the images.

NASA’s Jet Propulsion Laboratory, a division of Caltech, manages the Juno mission for the principal investigator, Scott Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center for the agency’s Science Mission Directorate. The Italian Space Agency (ASI) funded the Jovian InfraRed Auroral Mapper. Lockheed Martin Space in Denver built and operates the spacecraft.

Learn more about NASA citizen science.

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The celestial object showcased in an image from the NASA/ESA Hubble Space Telescope is the spiral galaxy UGC 9684, which lies around 240 million light-years from Earth in the constellation Boötes. This image shows an impressive example of several classic galactic features, including a clear bar in the galaxy’s center, and a halo surrounding its disk.

The data for this Hubble image came from a study of Type-II supernovae host galaxies. These cataclysmic stellar explosions take place throughout the universe, and are of great interest to astronomers, so automated surveys scan the night sky and attempt to catch sight of them. The supernova which brought UGC 9684 to Hubble’s attention occurred in 2020. It has since faded from view and is not visible in this image, which was taken in 2023.

Remarkably, the 2020 supernova isn’t the only one that astronomers have seen in this galaxy – UGC 9684 has hosted four supernova-like events since 2006, putting it up there with the most active supernova-producing galaxies. It turns out that UGC 9684 is a quite active star-forming galaxy, calculated as producing one solar mass worth of stars every few years. The most massive of these stars are short-lived, a few million years, and end their days as supernova explosions. This high level of star formation makes UGC 9684 a veritable supernova factory, and a galaxy to watch for astronomers hoping to examine these exceptional events.

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Acest titlu a fost scris de inteligență artificială Chat GPT, unele date pot fi incorecte. Pentru stirea originala, verificati sursa: Link catre sursa

Sursa si foto: NASA

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