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jetwaterluffy
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I read somewhere that silica aerogels hold 15 world records, but I can't find what they are. Obviously lowest density and best thermal insulator are two of them, but what are the others?
A silica aerogel is a lightweight, porous material made from silica particles that are connected in a three-dimensional network. It is known as the world's lightest solid material and has excellent thermal insulation properties.
Silica aerogels are made by first creating a gel from a solution of silica and a solvent. The gel is then dried using a process called supercritical drying, which involves removing the solvent while maintaining the gel's structure. This results in a solid material with a high porosity and low density.
Silica aerogels have a wide range of applications, including thermal insulation for buildings, insulation for pipelines and industrial equipment, and as a component in lightweight composites for aerospace and automotive industries. They are also used in scientific research for their unique properties.
The 15 world records of silica aerogels were determined by the Guinness World Records organization. The records include categories such as the lightest solid material, the highest thermal insulation, and the lowest density of a solid material.
Silica aerogels have several unique properties that set them apart from other materials. These include their extremely low density, high porosity, and excellent thermal insulation. They are also highly transparent and have a high surface area, making them useful for various applications.