As industry develops, graphite plays an important role and new uses for graphite continue to emerge. Graphite is an allotrope of carbon, which means it is a substance made up of carbon atoms arranged and bonded in a specific way. Let’s take a closer look at some of the applications of graphite.
Uses of graphite in industry
Semiconductor industry
The graphite material used in semiconductors is of high purity, fine particles and high temperature resistance. Such as the generation of single crystal silicon and polycrystalline silicon.
Aerospace and military industry
Compared with other materials, graphite is corrosion-resistant and lightweight, and can be used as rocket nozzles and aircraft brake linings.
Graphite electrodes for arc furnaces
As an electrical conductor, graphite electrode has a high electrical conductivity and does not participate in the chemical reaction in the electric arc furnaces. When powered on, it generates a large amount of heat for smelting steel.
Aluminum electrolysis
As a conductive self-baking anode for electrolytic cells, it is used for aluminum smelting. It is divided into prebaked anodes and carbon paste electrodes.
Non-ferrous metal casting
Graphite molds have good machining properties and are used for cast iron, copper and alloys.
Mechanical industry
Used as bearings, pistons, and sealing materials, it has good wear resistance and sealing properties.
Nuclear reactors
As a deceleration material and reflective material, the high purity and density of graphite are suitable for nuclear reactions.
EDM processing
Graphite is used as an electrode material for electrospark machining, which is cheaper and has less loss than other materials.
Electrical industry
The resistance of graphite is much lower than that of metals and is used as a resistor.
Dry Lubricants
Natural graphite or synthetic graphite are powdered graphite has very good lubrication properties and is widely used as a lubricant.
Refractory materials
Graphite has high thermal stability, so it is used in high-temperature environments such as blast furnaces and pipelines. Including refractory bricks, continuous casting powder, casting molds, etc. They can be used as lining materials for steel-making furnaces and can also be used in the continuous casting of steel.
Rare earth smelting
Mainly graphite anodes, graphite crucibles （including clay and graphite crucible）and conductive electrodes used for smelting. Graphite anode is used in rare earth smelting, electrolysis of rare earth metal oxides, and metal purification. Anode is a consumable material used in the electrolysis process in the rare earth smelting industry, existing as an anode and participating in chemical reactions.
Graphite inside Carbon Brushes
Graphite is a fundamental component of carbon brushes used in electric motors, generators, and alternators to run electrical current. It is used in motors and generators as conductors to receive current.
Photovoltaic and LED
Graphite is widely used in the photovoltaic industry of solar power generation. For example, graphite crucibles are used in the production of polycrystalline silicon and monocrystalline silicon.
Energy sector
Graphene sheets can improve the performance of lithium-ion batteries and supercapacitors, and can also be used in fuel cells. As the demand for alternative energy sources continues to grow, it is becoming increasingly popular in solar panels and wind turbines.
Spectral analysis
Graphite products used for measurement and measurement have high analytical sensitivity and are also good conductors of electricity and heat.
In Battery Technologies
Graphite is becoming increasingly important in emerging technologies such as solid-state and flow batteries outside lithium-ion batteries. Essential for energy storage improvements are its charge-discharge efficiency and capacity.
Foundry and casting
As a material for continuous casting molds, graphite can withstand large temperature differences without deformation or cracking. Because it has a low thermal expansion coefficient.
Graphite In Powder Metallurgy
The sintering process uses Graphite as a lubricant to lower friction between metal particles and moulds, enabling them to have excellent shape and comp of metal productsactness.
Graphite in Heat Exchange Systems
Excellent thermal conductivity and corrosion resistance make graphitethe top choice for heat exchangers in chemical processing and other industries demanding high temperatures.
In Actuators and Sensors
Industrial and environmental monitoring sensors benefit from graphite’s conductivity and electrical sensitivity. Smart sensors and actuators take advantage of its ability to sense humidity, temperature, and pressure changes.
Medical
Research and application of graphite materials in artificial internal organs, artificial joints, tooth roots and blood vessels. Its low weight and robust character make it perfect for medical advances needing strength and biocompatibility.
Membrane Technology
Advanced filtration systems separate liquids or gases using graphite materials in membranes, particularly in desalination plants and gas separation units. Its chemical resistance and structural stability enhance the filtration efficiency.
Coatings And Anticorrosion Paints
Graphite is becoming even more critical in anticorrosion paints and coatings, particularly for marine and industrial infrastructure. Its resistance to harsh environments lets bridges, ships, and pipelines endure longer.
Carbon Nanotubes
Because of its great strength and electrical conductivity, Graphite is a precursor material used to make carbon nanotubes, which can be found in anything from electronics to medical equipment.
Sports equipment
Graphite tennis rackets are lightweight and flexible, increasing the comfort and safety of sports.
Stationery
Pencil leads, inks, copier toners, etc., take advantage of the high flexural strength of graphite.
Conclusion
Due to the continuous emergence of new technologies and new materials, the uses of graphite are increasing. Not only in industry, but also widely used in daily life.
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