The most high temperature resistant materials are tantalum carbide and carbide Ha materials

What is tantalum carbide, carbide Ha?

Tantalum carbide is a light brown metal cubic crystal powder, belonging to the sodium chloride cubic system. At present, tantalum carbide is also used as a grain growth inhibitor for cemented carbide sintering. It has a significant effect on inhibiting grain growth and has a density of 14.3 g/cm 3. It is insoluble in water, almost insoluble in mineral acids, soluble in a mixed acid of hydrofluoric acid and nitric acid, and can be decomposed. It has strong antioxidant capacity and is easy to be melted and decomposed by potassium pyrosulfate. It has a high electrical conductivity, with a resistance of 30Ω at room temperature, indicating superconductivity.

 Carbonization is usually synthesized with cerium oxide (HfO 2) and carbon in an inert or reducing atmosphere. The reaction temperature of 1900 to 2300°C can form a solid solution with many compounds (such as ZrC, TaC, etc.).

Overview of tantalum tantalum carbide

Researchers have recently developed two new heat-resistant materials, tantalum carbide (TaC) and tantalum carbide (HaC), which can withstand high temperatures of nearly 4,000°C.

 It is worth mentioning that the research team at Imperial College London also found that the melting point of tantalum carbide has set a new record in the field of materials. Considering that the extreme high temperature tolerance of these two materials is close to 4000°C, these two materials can be used in more extreme and extreme environments, such as the insulating cover of the next generation of hypersonic spacecraft.

 Both tantalum carbideand tantalum carbide are refractory ceramics, which means that these two materials have excellent heat resistance. These two materials have the ability to withstand extreme environments, which means that their potential applications may include thermal protection systems for high-speed spacecraft and fuel cladding in nuclear reactors in ultra-high temperature environments. However, since there is no technology in the laboratory to test the melting temperature of the two ceramics TaC and HfC, it is still unclear whether they can actually work under extreme environmental conditions.

 To this end, researchers have developed a new type of extreme heating technology that uses lasers to test the heat resistance of TaC and HfC. Researchers used this technique to determine the melting points of TaC and HfC elements and their mixtures. The research was recently published in the journal "Scientific Reports".

 They found that the measured melting points of the two ceramic mixtures (Ta0.8H2O20C) are consistent with the previous study, reaching 3905°C, but the melting points of the two compounds themselves are higher than the previously found high-TaC melting point reaching 3768°C, while HfC It is 3958°C.

Researchers say that the emergence of these two materials will pave the way for the development of the next generation of hypersonic aircraft. This means that future spacecraft will be faster than ever.

 The research was conducted by Dr. Omar Cedillos Barraza during his Ph.D. PhD in Physics from Imperial College London. Dr. Sadiez Barazza is currently an associate professor at the University of Texas at El Paso.

 Dr. Saidi Barazza said: “When an aircraft flies at supersonic speeds exceeding Mach 5, the friction between the aircraft and the air will generate very high temperatures. So far, TaC and HfC have not been used. However, our new findings indicate that, These two materials have higher heat resistance than we previously thought. In fact, their heat resistance has surpassed any other compounds known to man, which means that they can be used in new materials. Spaceship: In the atmosphere , These spacecraft can fly like ordinary airplanes and then fly in space at supersonic speeds. These two materials can enable the spacecraft to withstand the extreme heat generated between the space shuttle’s atmosphere."

 Examples of potential uses of TaC and HfC are the nose covers of spacecraft and the edges of external instruments that have the greatest external friction during flight.

 At present, spacecraft above Mach 5 cannot carry out manned flights. But Dr. Saidi Barazza pointed out that this dream is likely to be realized in the future.

 Dr. Saidi Barazza added: “Our tests have shown that these two materials have great potential in the construction of future spacecraft. These two materials can withstand such high temperatures, which means that one day, manned hypersonic speed The spacecraft is indeed feasible. At Mach 5, the flight time from London to Sydney will only take 50 minutes, which will open up the world. This is a new continent that gives birth to new business opportunities."

Application of Tantalum Carbide

Tantalum carbide(TaC)is an extremely hard(Mohs hardness 9-10)refractory ceramic material that is commercially used in tool bits for cutting tools.Diamond exceeds the hardness.

It is a heavy brown powder, usually processed by sintering, and is an important cermet material. Sometimes used as a microcrystalline additive for tungsten carbide alloys.

The difference between tantalum carbide is that it is a stoichiometric binary compound, its highest known melting point is 4150 K(3880°C), and its boiling point is 5500 oC.

The substoichiometric compound TaC0.89 has a higher melting point, close to 427(4000°C).

The price of tantalum carbide

The price of tantalum carbide will vary randomly with production costs, transportation costs, international conditions, and supply and demand in the tantalum carbide market. 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 tantalum carbide, please feel free to send an inquiry to get the latest price of tantalum carbide.

Suppliers of Tantalum Carbide

As a global tantalum carbide 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(tantalum carbide, molybdenum carbide, titanium carbide),high-purity targets, functional ceramics, and structural devices, and provides OEM services.