Reduced noise by up to 80 percent and better passenger comfort may be achieved in airplanes using this low-density graphene-based aerogel.
This new and light, meringue-like material may be the key to lowering the engine noise associated with aircraft and it’s developed by the University of Bath.
This aerogel weighs around 2.1 kilos per cubic meter and it’s the lightest sound insulation ever made.
Therefore, it may be crucial in insulating sound in aircraft engines and lower the noise by up to 16 decibels. The jet engine sound when taking off may end up being as silent as a hairdryer!
How Was the Material Created?
The aerogel’s structure makes it very light and thus, it may be a viable insulator in the aircraft engine nacelles, without increasing the overall weight.
Currently, it’s being further improved by the researchers to better the heat dissipation and better fuel efficiency and safety. According to the lead of the research, Professor Michele Meo, this is exciting news because it’s a material that can be versatile.
Although initially applicable in aerospace, it holds potential for many other areas like marine or automotive transport, but also construction and building.
Meo also added that the low density was achieved by using a liquid combo of a polymer and graphene oxide that is made with whipped air bubbles and freeze-casted.
To explain it in simpler words, it’s similar to whipping egg whites to make meringue. This material is solid, yet airy and lightweight. Hence, its potential to better the noise and comfort is worth exploring.
What Are the Next Plans with this Material?
Even though the team’s primary focus is to work with aerospace partners and test its sound insulating properties in airplane engines, they claim they will also use it to make panels in car engines and helicopters.
Their estimates are that the aerogel may be put into use within an 18-month period.
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