Manmade fibre

Fibre, is a class of materials that are continuous filaments or are in discrete elongated pieces, similar to lengths of thread. They are very important in the biology of both plants and animals, for holding tissues together. A man made fibre is one that humans have created such as brick or concrete.Chemicals are mixed until they form filaments, which are then woven into fabric.Mineral fibres can be particular strong because they are formed with a low number of surface defects.

• Fibreglass , made from specific glass, and optical fibre, made from purified natural quartz, are also man-made fibres that come from natural raw materials, silica fibre, made from sodium silicate and basalt fibre made from melted basalt.
• Metallic fibres can be drawn from ductile metals such as copper, gold or silver and extruded or deposited from more brittle ones, such as nickel, aluminum or iron.
• Carbon fibres are often based on oxydized and via pyrolysis carbonized polymers like PAN, but the end product is almost pure carbon.
• Silicon carbide fibres, where the basic polymers are not hydrocarbons but polymers, where about 50% of the carbon atoms are replaced by silicon atoms, so-called poly-carbo-silanes. The pyrolysis yields an amorphous silicon carbide, including mostly other elements like oxygen, titanium, or aluminium, but with mechanical properties very similar to those of carbon fibres.