"silica" is a correct and usable word in written English.
It is a noun that refers to silicon dioxide, a mineral found in sand, quartz, and other materials. Example sentence: The clay contained a high amount of silica, making it particularly sought after for pottery and ceramics.
Sandpaper should not be able to scratch sapphire screens, as silica is a softer material than sapphire.
The top coat contains silica gel, an absorbent material that can suck up nerve gas and stop it getting inside a vehicle.
In a paper recently published in Langmuir, Dr Mian tested what happens when a vital chemical in mussel adhesive protein is exposed to wet silica, and calculated the amount of energy with which it binds the solid silica using a computer model.
Sponges are the oldest living group of multicellular animals, and although most have skeletons made of silica some, like Astrosclera, have a secondary calcium-carbonate skeleton.
With patents still pending, he is cagey about the details, but the principle is to trap relevant molecules using columns made of metal or silica that are the width of a human hair.
"You can imagine what that would do to enemy morale," Mr Roos says.One way to block body-heat signatures is to use particles called cenospheres tiny hollow spheres of aluminium and silica that can be woven into fabrics.
These membranes are made of three layers of a conducting material, titanium nitride, separated by insulating layers of silica.
Before going to university, Miss Tong spent 3,500 yuan ($555) to make her nose bigger using silica gel.
A group of researchers at the University of Vermont, led by Christopher Landry, have already managed to combine silica gel with a vanadium catalyst to create a mixture that oxidises mustard gas, rendering it harmless.In the future, then, military paint will not only hide vehicles from prying eyes it will also help protect soldiers from one of the most feared forms of attack.
Aerogels are among the lightest solids in existence, while coercivity is a measure of how strong the magnetisation of a magnet is a magnet with low coercivity easily flips polarity, and so would not be useful in a memory or a display.Aerogels are commonly made of silica, the main ingredient in sand.
The shells are built on a core of silica whose shape can be adjusted to produce the desired effect.
