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    Aerogel

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    Aerogel is an ultralight solid material derived from a gel in which the liquid component of the gel has been replaced with a gas, giving it an extremely low density. It was first created in 1931 by Samuel Stephens Kistler through a process of extracting the liquid from a silica gel and replacing it with gas, without collapsing the gel structure. Aerogels are highly insulating due to their composition of mostly gas trapped within an open, porous structure that inhibits heat transfer and gas circulation. They find uses in applications like insulation, clothing, windows, and firefighting gear due to their strong structure, low weight and thermal properties.

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    Aerogel

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    35 views1 page
    Aerogel is an ultralight solid material derived from a gel in which the liquid component of the gel has been replaced with a gas, giving it an extremely low density. It was first created in 1931 by Samuel Stephens Kistler through a process of extracting the liquid from a silica gel and replacing it with gas, without collapsing the gel structure. Aerogels are highly insulating due to their composition of mostly gas trapped within an open, porous structure that inhibits heat transfer and gas circulation. They find uses in applications like insulation, clothing, windows, and firefighting gear due to their strong structure, low weight and thermal properties.

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    Aerogel

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    Aerogel is an ultralight solid material derived from a gel in which the liquid component of the gel has been replaced with a gas, giving it an extremely low density. It was first created in 1931 by Samuel Stephens Kistler through a process of extracting the liquid from a silica gel and replacing it with gas, without collapsing the gel structure. Aerogels are highly insulating due to their composition of mostly gas trapped within an open, porous structure that inhibits heat transfer and gas circulation. They find uses in applications like insulation, clothing, windows, and firefighting gear due to their strong structure, low weight and thermal properties.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    35 views1 page

    Aerogel

    Uploaded by

    How are you Hi
    Aerogel is an ultralight solid material derived from a gel in which the liquid component of the gel has been replaced with a gas, giving it an extremely low density. It was first created in 1931 by Samuel Stephens Kistler through a process of extracting the liquid from a silica gel and replacing it with gas, without collapsing the gel structure. Aerogels are highly insulating due to their composition of mostly gas trapped within an open, porous structure that inhibits heat transfer and gas circulation. They find uses in applications like insulation, clothing, windows, and firefighting gear due to their strong structure, low weight and thermal properties.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 1

    AEROGEL

    Aerogel is a type of ultralight material derived from a gel. The liquid component for the gel is replaced with a gas, so the
    density is extremely low and the thermal conductivity is also very low.
    Properties of this material
    Although there’s the word “gel” in the name, its physical properties
    How was it developed and how it works
    are nothing close to those of a gel. It is solid, rigid and dry. If you An aerogel was first created by Samuel Stephens
    press softly on an aerogel, you won’t leave a mark on it, but if you Kistler in 1931 because of a bet with Charles
    press really firmly, there will be a permanent depression on the Learned over who could replace the liquid inside a
    material. If you press extremely firmly, it will shatter like glass. jam jelly jar with gas without causing shrinkage.
    However, despite that, it is very strongly structured. An aerogel can He produced the first aerogel from a colloidal form
    have up to 99.8% of air. It contains a lot of air pockets, taking up
    majority of the space in the material. Aerogels are very good thermal
    of silica gel. It earned the nickname “frozen
    insulators because they are mostly composed of insulating gas and smoke” and held the Guinness World Record for
    the microstructure prevents net gas movement which will prevent lowest-density solid. It is produced by extracting
    heat transfer. They are good conductive insulators because they are the liquid component of gel through supercritical
    almost entirely made of out gas. They also are good convective drying or freeze-drying, the liquid will be quickly
    inhibitors because air cannot circulate through the lattice. However, dried off without causing the solid shape of the gel
    they are bad radiative insulators because infrared radiation passes
    through them. Furthermore, aerogel feels dry and acts as a strong
    to collapse.
    desiccant.

    Everyday uses
    At first they were marketed as thickening agents, and used in almost everything, from
    makeup to paint. They were also used as insulation fro freezers. Monsanto was the first
    company to market aerogel’s commercial applications, but because it was too
    expensive and time consuming, it gave up on aerogel. Then scientists developed a
    process to make the production of aerogels less toxic, which led to more product
    possibilities. Silicon manufacturers, home building materials manufacturers and space
    agencies like NASA have all put aerogel to use. Aerogel can be found in firefighter
    suits, cosmetics, windows, etc. It is also widely used in the clothing industry because
    of its thermal insulation and comfort performance .

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