Titanium carbonitride synthesis method

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Carbothermic reduction method

Use carbon black to reduce TiO2, the reaction temperature range is 1700-2100℃, and the chemical reaction formula is: TiO2(s)+3C(s)=TiC(S)+2CO(g).

Direct carbonization method

Ti powder and carbon powder react to generate TiC. The chemical reaction formula is: Ti(s)+C(s)=TiC. Because it is difficult to prepare sub-micron 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 agglomerate seriously, and further grinding processing is required to prepare fine particles. Granular TiC powder. In order to obtain a purer product, it is necessary to chemically purify the fine powder after ball milling.

Chemical vapor deposition method

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 on its output and sometimes even its quality. In addition, due to TiCl4 and the product The HCl contained in it is strongly corrosive, so be careful when synthesizing it.

Sol-gel method

A method for preparing small particle size products by thoroughly mixing and dispersing materials by means of a solution. It has the advantages of good chemical uniformity, small powder particle size and narrow distribution, and low heat treatment temperature, but the synthesis process is complex and the drying shrinkage is large.

Microwave method

Take nano TiO2 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 energy, so that nano-TiO2 and carbon are synthesized into TiC.

Explosion impact method

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

High frequency induction carbothermic reduction method

Weigh and mix the pigment-grade titanium dioxide powder and charcoal powder at a molar ratio of 1:3 and 1:4, add them into a ball mill tank, and mill them on a planetary ball mill for 6-10 hours at a speed of 300-400r/min, and then mill the material. Press the tablet press to form a block of 2cm×2cm～2cm×4cm, and finally put the material into the graphite crucible and put it into the high-frequency induction heating equipment, argon gas as a protective atmosphere, and gradually adjust the current of the high-frequency induction equipment to 500A causes the material to undergo a carbothermal reduction reaction, and keep it for 20 minutes. After the heat preservation is completed, the reduced product is naturally cooled to room temperature under an argon atmosphere, and the reduced product is taken out, and after grinding and crushing, ultra-fine titanium carbide powder is obtained.

Metal thermal reduction method

A solid-liquid reaction method is an exothermic reaction, so the reaction temperature is low, the energy consumption is small, but the raw materials are relatively expensive, and the CaO and MgO in the product are pickled and cannot be recycled.

High temperature self-propagating synthesis method

(SHS) The SHS method is derived from an exothermic reaction. When heated to an appropriate temperature, the fine-grained Ti powder has high reactivity. Therefore, once the combustion wave generated after ignition passes through the reactants Ti and C, Ti and C will have enough reaction heat to generate TiC. The SHS method has a very fast reaction, usually less than one second. The synthesis method requires high-purity, fine Ti powder as a raw material, and the output is limited.

Reactive ball milling technology method

Reactive ball milling technology is a technology that uses the chemical reaction between metal or alloy powder and other elements or compounds in the ball milling process to prepare the required materials. The main equipment for preparing nanomaterials with reactive ball milling technology is a high-energy ball mill, which is mainly used to produce nanocrystalline materials. The reaction ball milling mechanism can be divided into two categories: one is mechanically induced self-propagating high temperature synthesis (SHS) reaction, and the other is reaction ball milling without obvious exotherm, and the reaction process is slow.

Overview of titanium carbonitride TiCN powder

Titanium carbonitride has at least 70 crystal forms. Alpha-titanium carbonitride is a more common isomorphous crystal formed at high temperatures above 2000 degrees Celsius, with a hexagonal crystal structure (similar to wurtzite). Below 2000 degrees Celsius, β-titanium carbonitride is formed, which is similar to the cubic crystal structure of diamond. Although in the application of heterogeneous catalyst support, it is attractive because its unit surface area is higher than that of α type. Another type of titanium carbonitride, μ-titanium carbonitride is very stable and has a more pleasing sound during collision.

Application of titanium carbonitride TiCN powder

Titanium carbonitride can be divided into α titanium carbonitride and β titanium carbonitride. Alpha titanium carbonitride abrasives come in two colors, green titanium carbonitride, black and green. β-Titanium carbonitride is the main category for preparing titanium carbonitride ceramic materials. The toughness of black titanium carbonitride is higher than that of green titanium carbonitride. It is mainly used to process materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals. Green titanium carbonitride has good self-sharpening properties and is mainly used for processing cemented carbide, titanium alloy and optical glass.

 In addition to being used as an abrasive, titanium carbonitride has many other uses. The titanium carbonitride powder is coated on the inner wall of the turbine impeller or cylinder block by a special process, which can improve its wear resistance and extend the service life by 1-2 times; the made refractory material is black titanium carbonitride and green resistant Heat, light weight, high strength, and has a good energy-saving effect.

 Titanium carbonitride (TiCN) has the highest lubricity of all tin coatings, which makes it an excellent dry film lubricant, which is superior to standard printed silicon tin when hardness and wear resistance are required to increase . great. TiCN is usually used for steel, hardened steel and stainless steel materials. TiCN is an excellent coating for bronze, brass and plastics, so it is ideal for stamping, stamping and forming. Can be stripped and re-coated.

Titanium carbonitride TiCN powder price

The price of titanium carbonitride TiCN powder will vary randomly with production cost, transportation cost, international situation, exchange rate and market demand for titanium carbonitride TiCN 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 set of customized services. If you are looking for titanium carbonitride TiCN powder, please feel free to send an inquiry to get the latest price of titanium carbonitride TiCN powder.

Titanium carbonitride TiCN powder supplier

As a global titanium carbonitride TiCN powder supplier, Tanki New Materials Co., Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (carbonitride Titanium, iron carbide, manganese carbide), high-purity targets, functional ceramics and structural devices, and provide OEM services.