How is titanium carbide TiC powder produced?
There are many synthetic methods for titanium carbide, the most common ones are:
1. Carbothermal reduction method
Use carbon black to reduce TiO2, the reaction temperature is 1700-2100℃, and the chemical reaction formula is TiO2 + 3C. (S) = TiC (S) + 2CO (g).
2. Direct carbonization
Titanium powder and carbon powder react to form TiC. The chemical reaction formula is: Ti (s) + C (s) = TiC. Because it is difficult to prepare submicron metal Ti powder, the application of this method is limited. The above reaction takes 5-20 hours to complete, and the reaction process is difficult to control. The reactants are severely agglomerated and require further grinding treatment to prepare fine particles. TiC granular powder. In order to obtain a purer product, the fine powder must be chemically purified after ball milling.
3. Chemical Vapor Deposition
The synthesis method utilizes the reaction between TiCl4, H2 and C. The reactant reacts with the hot tungsten or carbon monofilament, and TiC crystals grow directly on the monofilament. The TiC powder synthesized by this method has strict limits in terms of output and even quality. In addition, because TiCl4 and its products, the HCl contained therein is highly corrosive, so be careful when synthesizing.
4. The sol-gel method is
A method of preparing small particle size products by thoroughly mixing and dispersing the solution. It has the advantages of good chemical uniformity, small powder particle size, narrow distribution, and low heat treatment temperature, but the synthesis process is complicated and the drying shrinkage is large.
5. Microwave method
Take nano titanium dioxide and carbon black as raw materials, use the principle of carbothermal reduction reaction, and use microwave energy to heat the material. In fact, it uses the dielectric loss of the material in the high-frequency electric field to convert microwave energy into heat, thereby synthesizing nano-TiO2 and carbon into TiC.
6. Impact impact method
The titanium dioxide powder and carbon powder were mixed in a certain proportion and pressed into a cylinder of Φ10mm×5mm to prepare the precursor, with a density of 1.5g/cm3, and the laboratory was placed in a metal-constrained cylinder. Put it into a self-made airtight explosion container for experiment, and collect the explosion ash after the explosion shock wave. After preliminary screening, large impurities (such as iron filings) are removed to obtain black powder. The black powder turned brown after being immersed in aqua regia for 24 hours, and was finally put into a muffle furnace and calcined at 400° C. for 400 minutes to obtain a silver gray powder.
7. High frequency induction carbothermic reduction method
Weigh and mix pigment-grade titanium dioxide powder and charcoal powder in a molar ratio of 1:3 and 1:4, add them to the ball mill tank, and grind on a planetary ball mill at a certain speed for 6-10 hours 300-400r/min , And then grind the material. The tablet press is pressed into a block of 2cm×2cm~2cm×4cm, and finally the material is put into a graphite crucible, and put into a high-frequency induction heating device, using argon as a protective atmosphere, and gradually reduce the current of the high-frequency induction device Adjust to 500A, make the material undergo carbothermal reduction reaction, and keep it for 20 minutes. After the heat preservation is over, the reduced product is naturally cooled to room temperature under an argon atmosphere, and the reduced product is taken out and pulverized to obtain ultrafine titanium carbide powder.
Overview of titanium carbide TiC powder:
Titanium carbide TiC powder is a crystalline solid with gray metallic luster.It is hard in quality,second only to diamond in hardness,and weak in magnetism.The molecular weight is 59.89,the melting point is 3140°C,the boiling point is 4820°C,and the relative density is 4.93.Hardness 9-10.Insoluble in water,soluble in nitric acid and aqua regia.It is stable to air below 800℃,corroded by air above 2000℃,and can react with pure oxygen at 1150℃.Used in the manufacture of cemented carbide,also used as electrodes and abrasives for arc lamps.
Application of titanium carbide TiC powder:
1.Titanium carbide powder is used for high temperature thermal spraying materials,welding materials,hard film materials,military aviation materials,carbides and cermets.
2.Used as an additive in thermistor production to improve wear resistance.
3.Titanium carbide powder has a NaCl type cubic crystal structure,and 6% to 30% TiC is added to WC-Co cemented carbide to form a TiC-WC solid solution with WC,which can significantly improve the red heat and the wear resistance of the alloy.Anti-oxidation,anti-corrosion and other properties,more suitable for processing steel than WC-Co cemented carbide.It is also possible to use alloys such as Ni-Mo as a binder to form a tungsten-free cemented carbide,which can increase the turning speed and the accuracy and smoothness of the workpiece.
4.Used as cutting tool materials and additives for metal bismuth,zinc and cadmium smelting crucibles to prepare semiconductor wear-resistant films,HDD large-capacity storage equipment,is an important component of cemented carbide,used as a deoxidizer in the steelmaking industry,It is also used as a cermet,which has the characteristics of high hardness,corrosion resistance and good thermal stability.
Titanium carbide TiC powder price:
The price of titanium carbide TiC powder will vary randomly with the production cost, transportation cost, international situation, and the market supply and demand of titanium carbide TiC powder. Tanki New Materials Co. Ltd aims to help all industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for titanium carbide TiC powder, please feel free to send an inquiry to get the latest price
Titanium carbide TiC powder suppliers:
As a global titanium carbide TiC powder supplier,Tanki New Materials Co.Ltd has extensive experience in advanced,engineered material performance,application and cost-effective manufacturing.The company has successfully developed a series of powder materials(including boron carbide,aluminum carbide,boron carbide,etc.),high-purity targets,functional ceramics and structural devices,and provides OEM services.
|Technical Parameter of Titanium Carbide TiC Powder :|
|Titanium Carbide Properties|
|Other Names||titanium(IV) carbide, TiC powder|
|Melting Point||3160 °C|
|Boiling Point||4820 °C|
|Solubility in H2O||N/A|
|Titanium Carbide Health & Safety Information|
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