How many ways are there to prepare titanium carbide?

Several preparation methods of titanium carbide

Carbothermal Reduction

Reduction of TiO2 with carbon black, the reaction temperature range is 1700-2100 ℃, the chemical reaction formula is:

TiO2(s)+3C(s)=TiC(S)+2CO(g).

direct carbonization

Ti powder reacts with carbon powder to form TiC. The chemical reaction formula is: Ti(s)+C(s)=TiC. The application of this method is limited due to the difficulty in preparing submicron titanium metal powders. The above reaction takes 5-20 hours to complete, and the reaction process is difficult to control. The agglomeration of the reactants was severe and further grinding was required to prepare fine particles. Granular TiC powder. In order to obtain a purer product, chemical purification of the ball-milled fine powder is required.

chemical vapor deposition

The synthesis method utilizes the reaction between TiCl4, H2 and C. Reactants react with hot tungsten or carbon monofilaments and TiC crystals grow directly on the monofilaments. TiC powders synthesized by this method have strict limits on their yield and sometimes even their quality. In addition, due to TiCl4 and its products, the HCl contained in it is highly corrosive, so be careful when synthesizing.

microwave method

Using nano-titanium dioxide and carbon black as raw materials, using the principle of carbothermal reduction reaction, the material is heated by microwave energy. In fact, it uses the dielectric loss of the material in the high-frequency electric field to convert microwave energy into thermal energy, thereby making nano-TiO2 and carbon to synthesize TiC.

impact method

Titanium dioxide powder and carbon powder are mixed and pressed into a cylinder of Φ10mm×5mm in a certain proportion to prepare the precursor, and the density is 1.5g/cm3. The laboratory is placed in a metal-constrained outer cylinder. Put it into a self-made airtight explosion container for experiment, and collect the explosion ash after the explosion shock wave. After the primary screening, large impurities such as iron filings are removed to obtain black powder. The black powder turned brown after being soaked in aqua regia for 24 hours, and finally put into a muffle furnace for calcination at 400°C for 400 minutes to obtain a silver-gray powder.

high temperature self-propagating synthesis

(SHS) The SHS method is derived from an exothermic reaction. Fine-grained titanium powder is highly reactive when heated to an appropriate temperature. Therefore, once the combustion wave generated after ignition passes through the reactants Ti and C, Ti and C will have enough reaction heat to form TiC. The response of the SHS method is very fast, usually less than a second. The synthesis method requires high-purity and fine titanium powder as raw material, and the yield is limited.

Reactive Ball Milling Technology

Reactive ball milling technology is a technology that utilizes the chemical reaction of metal or alloy powder and other elements or compounds during ball milling to prepare the desired materials. The main equipment for preparing nanomaterials by reactive ball milling is a high-energy ball mill, which is mainly used to produce nanocrystalline materials. The mechanism of reaction ball milling can be divided into two categories: one is the mechanically induced self-propagating high temperature synthesis (SHS) reaction, and the other is that the reaction ball milling has no obvious exothermic reaction and the reaction process is slow.

Overview of titanium carbide powder

Titanium carbide TiC powder is a crystalline solid with gray metallic luster, hard quality, second only to diamond in hardness, and weaker in magnetic properties. 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°C, corroded by air above 2000°C, and can react with pure oxygen at 1150°C. For the manufacture of cemented carbide, also used as electrodes and abrasives for arc lamps.

Application of titanium carbide 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 the production of thermistors to improve wear resistance.

3. Titanium carbide powder has a NaCl-type cubic crystal structure. Adding 6% to 30% of TiC to WC-Co cemented carbide forms a TiC-WC solid solution with WC, which can significantly improve red heat and wear resistance, oxidation resistance, Corrosion resistance and other properties, more suitable for processing steel than WC-Co cemented carbide. Alloys such as Ni-Mo can also be used as binders to form tungsten-free cemented carbides, which can improve the turning speed and the precision and finish of the workpiece.

4. Used as tool material and additive for metal bismuth, zinc, cadmium smelting crucible, preparation of semiconductor wear-resistant film, HDD large-capacity storage equipment, is an important part of cemented carbide, used as deoxidizer in steelmaking industry, also Used as cermet, it has the characteristics of high hardness, corrosion resistance and good thermal stability.

Titanium carbide powder price

The price of titanium carbide TiC powder will change randomly with the production cost, transportation cost, international situation and market supply and demand of titanium carbide TiC powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for titanium carbide TiC powder, please feel free to send an inquiry to get the latest price of titanium carbide TiC powder.

Titanium carbide  powder suppliers

As a global supplier of titanium carbide TiC powders, Tanki New Materials Ltd. has extensive experience in advanced, engineered material properties, applications and cost-effective manufacturing. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, boron carbide, etc.), high-purity target materials, functional ceramics and structural devices, and provides OEM services.