- Rigidity makes it easy to crack or break when hits on hard surfaces.- Needs cushioning materials to make it more protective.With the invention of the Faraday Cage, these undesirable and downright disruptive radiation fields came under control. So a Faraday cage shields its contents from static electric fields, which is a force field surrounding a charged particle, such as an electron or proton. So quite often, people will use a Faraday cage to develop ways to control electricity and make it safer.įaraday cages come in all shapes and sizes, but with one fundamental attribute, they all use some form of a screen that conducts electricity, which subsequently creates a shielding effect. Likewise, it can kill modern electronics and machines (the electromagnetic effect). It's named after its inventor, the English scientist Michael Faraday".Įlectricity is the lifeblood of so many aspects of our world (thanks to Faraday), the main engine that drives technology growth and fuels innovation. It is formed by conductive material or by a mesh of similar materials. "A Faraday cage or Faraday shield is an enclosure used to block electric fields. Simply put, the more genuine a carbon fiber case is, the worse it is to your phone's cellular radio reception.Īlternatively, I can explain this by referring to Faraday or a Faraday cage (Electrostatic Shielding). Therefore, as radio waves are electromagnetic, carbon fiber absorbs those waves very well.Īnd the larger the conductive capacity of carbon fibers, the more the incoming radio signal is attenuated. On the other hand, it absorbs electricity very well. It's displaying the properties of both a metal and a nonmetal.Ĭarbon fiber is a conductor of electricity and magnetism. It conducts electricity so well because of the mobility of the electrons in the outer valence shells. The atomic structure of carbon fiber is very similar to graphite, with sheets of carbon atoms arranged in a regular hexagonal pattern. The material is comprised of at least 95% carbon. But, in truth, this turns out to be the wrong decision when it comes to signal reception.Ĭonductivity is not the sole reason why carbon fiber is terrible for phone cases. Ironically, however, metal and carbon fiber are two of the most wanted materials for buyers and manufacturers, mainly because of their look and durability. In other words, both materials are often the fundamental reason why your phone's signal is lower than if you took the case off. They can often affect your signal strength in a similar way. Carbon fiber phone cases reduce the average cellular signal by as much as 40%- 60%, and aluminum and other similar metal phone cases don't do much better. It's also used to make protective durable phone cases, but this is where it all goes wrong.Īmongst some of the most common materials used for phone cases, aluminum and carbon fiber have been proven to dramatically reduce your phone's cellular signal reception via Radio Frequency Interference (RFI). It's the ideal material for plenty of applications in the aerospace industry, civil engineering, military, sports equipment, etc. While it is an excellent and impressive composite material, carbon fiber features high stiffness, high tensile strength, high chemical resistance, high temperature tolerance, low weight and low thermal expansion. The reason why I advise you not to get a carbon fiber case is quite simple - it blocks your phone signal, and I mean dramatically. Carbon Fiber Cases Block your Phones Signal Dramatically! If you're looking for a phone case with a similar carbon fiber look and is as durable as carbon fiber is, opt for aramid fiber phone cases. Many so-called "carbon fiber" phone cases are not genuine carbon fiber. TL DR: Carbon fiber is not an ideal material for phone cases. There's a big chance that you end up buying carbon fiber cases, which are not wise buys.
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