Karbon, a kan wurin daɗi da kuma a gudanar da abubuwa masu sauran, yana amfani da shi da dama a fanni na kula. Abubuwan da ke karbon da kuma wurin da ke karbon suke fitowa da graphite da kuma wurin da ke karbon.Fanni na Kula–
Don fitowa filamen ta takalmi na rawa
Don fitowa hanyoyi na kula
Don fitowa resistors
Don fitowa brushes don yanayyoyi na kula kamar DC machines, alternators.
Don fitowa batari cell elements
Don fitowa carbon electrodes don electric furnaces
Arc lighting and welding electrodes
Don fitowa component for vacuum valves and tubes
Don fitowa parts for telecommunication equipment.
A yi amfani da karbon a cikin medium na gas mai tsawon fitowa filamen ta takalmi na rawa. Resistivity ta karbon yana cikin 1000-7000 µΩ -cm kuma melting point ta yana cikin 3500oC. Wannan ya ba shi da kyau don fitowa filamen ta takalmi na rawa. Efficiency ta takalmi na rawa a cikin tattalin arziki shine 4.5 lumens per watts ko 3.5 watts per candle power. Karbon yana da matsaloli na blackening a cikin takalmi na rawa. Don tabbatar da wannan blackening, ana iya hada temperature ta rayuwa zuwa 1800oC.
A yi amfani da karbon a kan fiber formed from polymers by pyrolysis. Carbon fibers suna nuna mechanical strength mafi yawan da take faru a kan tensile load. Ana yi amfani da carbon fibers don zama mechanical strength na hanyoyi na kula wanda suke zama a kan compressive ko tensile loads a lokacin rayuwa. Carbon fibers suna haɓaka wear and tear na hanyoyi na kula. Duk da haka, karbon being a conductor of electricity, contributes for carrying current passing through electrical contact in terms it reduces the contact resistance.
High resistivity, high melting point and low temperature coefficient of resistance make the carbon suitable for manufacturing resistors. Resistors made of carbon are widely used in electronic circuits.
Graphite Carbon is very much suitable for making brushes for large rating DC machines and alternators. Brushes made graphite carbon are having following advantages –
Graphite Carbon brushes are having high contact resistance. This high resistance of graphite carbon brushes helps to improve commutation.
High thermal stability – which make them suitable to withstands at high temperature developed due friction during operation of rotating machine.
Self-lubrication between stationary brushes and rotating commutator or slip rings. Which reduces the wear and tear of commutator or slip rings.
Karbon shine muhimmin element a kan fitowan dry cells. A yi amfani da karbon don fitowa electrodes for zinc-carbon batteries (Dry cells). Carbon electrode works as positive pole of battery. In dry cells the carbon is an inert material as it does not take part in electro-chemical reaction occurring in dry cells.
Graphite carbon is widely used for manufacturing the electrodes for Electric Arc furnaces. In Electric Arc furnaces used for steel production the operating temperature level is about 2760oC. Graphite carbon is only commercial available material which has the high level of electrical conductivity and ability to with stand with such high level of temperature. Which make it suitable for making electrodes for electric arc furnaces.
Graphite carbon is also widely used for manufacturing the electrodes for Arc lighting and welding. As discussed above, graphite carbon has the high level of electrical conductivity and ability to with stand at high level of temperature during Arc lighting and welding. Which make it suitable for making electrodes for Arc lighting and welding.
In vacuum valves and tubes, carbon is used for coating of cathode and grid to protect against mechanical deformation produced at very high temperature produced during operation of vacuum vales and tubes. In high power application, the anode used in vacuum valves and tube, must be capable to withstand at high operating temperature and must be capable to dissipate the heat produced. For this purpose carbon is very much suitable for making anodes for vacuum valves and tubes.