Introduction to aerogels

Aerogels are ultralight, highly porous materials with incredible insulation properties. Learn how they are revolutionizing multiple industries.

Image source: Courtesy NASA/JPL-Caltech, Public domain, via Wikimedia Commons

The origins of aerogels

Aerogels were first created in 1931 by Samuel Stephens Kistler. Discover the accidental discovery that led to this breakthrough material.

Image source: Image courtesy of Aerogel.org, licensed under CC BY 3.0

The unique properties of aerogels

Aerogels are 90-99.8% air, making them one of the lightest solid materials. They provide superior insulation but can be fragile.

Image source: Photo by Aerogel, licensed under CC BY-ND, via flickr.com

How aerogels are made

Aerogels are created by removing liquid from gels using a supercritical drying process that preserves their structure.

Image source: Photo by Aerogel, licensed under CC BY-ND, via flickr.com

NASA’s use of aerogels

NASA has used aerogels for spacecraft insulation, rocket fuel pipelines, and even in comet dust collection.

Image source: commons.wikimedia.org

The expensive price of aerogels

Aerogels are costly, with some sheets priced at thousands of dollars. Can new production methods make them more affordable?

Image source: Photo by Aerogel, licensed under CC BY-ND, via flickr.com

Aerogels in space exploration

The European Space Agency and NASA have used aerogels to protect spacecraft from extreme temperatures and capture cosmic dust.

Image source: By NASA - https://stardust.jpl.nasa.gov/photo/artist.html (image link), Public Domain, https://commons.wikimedia.org

Aerogels in construction and energy efficiency

Aerogels are being used for ultra-efficient building insulation, reducing energy costs while maintaining indoor temperature stability.

Image source: Photo by Thermablok Aerogels thermablokaerogels Follow Thermablok Aerogel Isolation Strips to Velux, licensed under CC BY-ND, via flickr.com

Medical and environmental uses

Scientists are developing aerogels for medical applications, such as drug delivery, water purification, and oil spill cleanup.

Image source: Photo by Demonstrating Aerogels, licensed under CC BY-ND, via flickr.com

Innovations in aerogel technology

Researchers are enhancing aerogels with properties like flexibility, fire resistance, and electrical conductivity for new applications.

Image source: Photo by Aerogel cube & Peter Tsou, JPL Scientist, Stardust Deputy Principal Investigator, licensed under CC BY-ND, via flickr.com

Companies leading aerogel research

Companies like Cabot Corporation, Aspen Aerogels, and Aerogel Technologies are pushing aerogels into mainstream use.

Image source: Photo by AMA COMPOSITES & TEAM SAPIENZA, licensed under CC BY-ND, via flickr.com

The future of aerogels

As production costs drop and new applications emerge, aerogels could transform industries from construction to space travel.

Image source: Photo by aerogel, block of it on display, licensed under CC BY-ND, via flickr.com

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Image source: Courtesy NASA/JPL-Caltech, Public domain, via Wikimedia Commons