What is Tantalum Carbide?
Tantalum Carbide (TaC) is a hard, brittle refractory ceramic with good electrical conductivity. It is an additive in high-temperature ceramics and aerospace industries for aircraft and rockets. It is odorless and brown-gray. Tantalum carbide is widely used as a sintering additive in ultra-high temperature ceramics or as a ceramic reinforcement in high-entropy alloys due to its excellent physical properties in melting point, thermal conductivity, thermal shock resistance, and chemical stability. By testing Vickers hardness, fracture toughness, and relative density of a series of samples, it can be confirmed that the TaC possesses the best mechanical properties under 5.5 GPa and 1300 °C. The relative density, fracture toughness, and Vickers hardness of TaC are 97.7%, 7.4 MPa m1/2, and 21.0 GPa, respectively. Tantalum carbide (TaC) has excellent high-temperature mechanical stability, high-temperature corrosion and ablation resistance, and good chemical and mechanical compatibility with carbon materials.
Can tantalum carbide melt?
Tantalum carbide (TaC) is an ultrahigh-temperature ceramic binary compound with its analogs' highest melting temperature (3770∘C). Tantalum carbide, TaC, is primarily produced through the reduction-carburization of Ta2O5 with carbon at temperatures from 1600 to 2000°C (Kirk-Othmer, 1978d, pp. A few typical samples of partly oxidized powders were subjected to X-ray diffraction (XRD) for phase characterization using an X-ray diffractometer (Cu K a/Ni filter, 40 kV, 30 mA) from Philips Ltd.; The powder diffraction peaks were identified using the computer program of the X-ray cards of the International Center for Diffraction Data. The sample oxidized at 873 to 973K for 25 hours exhibited increasing weight gain with increasing oxidation temperature. On the other hand, the weight gain of the samples oxidized at and above 1073K for two h was approximately 15%. However, even if the oxidation time was extended, an additional weight change did not occur because this value is the theoretical weight gain of TaC. Based on the X-ray diffraction analysis results, tantalum oxide ( a -Ta2O5) was present on the sample's surface oxidized at 1073K.
High temperature oxidation of tantalum carbide (TaC) powder
The high-temperature oxidation of tantalum carbide (TaC) powder was investigated to determine the application of refractory materials for space crafts. TaC powder with an average particle size of about 10 Jim was used in this experiment. The samples were oxidized in air at 573 to 1273K for 5 min to 25 h. The weight changes were measured to estimate the oxidation properties. Exposed for short oxidation times of 5 min, started at 873K, and weight changes increased with increasing oxidation temperature. The sample oxidized for 0.5 to 1 h exhibited growing weight gain with increasing oxidation temperature and constant weight gain over 973K. On the other hand, for oxidation times above two h, the weight gain had a maximum value of 1073 to 1273K. And it had a constant value of only 15%. Based on the X-ray diffraction analysis results, tantalum oxide was present on the surface of the samples oxidized at 973K.
Price of Tantalum Carbide
Tantalum Carbide particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Tantalum Carbide. A large amount of large amount will be lower. The Price of Tantalum Carbide is on our company's official website.
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