Overview of Tantalum Carbide TaC CAS 12070-06-3 With Good
Metal powder is a common form of metal that has been processed into fine particles, ranging from a few micrometers to over 100 microns in diameter. It plays a crucial role in various industrial applications due to its unique properties and versatility.
Features of Tantalum Carbide TaC CAS 12070-06-3 With Good
Physical Characteristics
Particle Size: Ranging from nanometers to hundreds of micrometers, the size distribution significantly influences the powder’s flowability, packing density, and sintering behavior.
Shape: Particles can be spherical, irregular, flake-like, or dendritic, each shape affecting the final product’s mechanical properties and surface finish.
Purity: Depending on the production method, metal powders can achieve high levels of purity, critical for applications like electronics and aerospace where impurities can degrade performance.
Density: While less dense than their solid counterparts due to the presence of air between particles, metal powders can be densely packed during processing to approach the density of the solid metal.
Chemical Properties
Reactivity: Some metal powders, particularly aluminum and titanium, are highly reactive with air and moisture, necessitating careful handling and storage under inert atmospheres or vacuum.
Oxidation: Exposure to air can lead to surface oxidation, forming a passive layer that affects sintering and other processes. This can be managed through surface treatment or use of protective atmospheres.
(Tantalum Carbide TaC CAS 12070-06-3 With Good )
Parameters of Tantalum Carbide TaC CAS 12070-06-3 With Good
Tantalum carbide (TaC), with the Chemical Abstracts Service (CAS) number 12070-06-3, is a high-performance material that has garnered significant attention in various industrial applications due to its exceptional properties. This compound is formed by the combination of tantalum, a rare and lustrous transition metal, and carbon, a versatile element known for its strength and conductivity.
TaC exhibits an impressive combination of mechanical, thermal, and chemical stability, making it a preferred choice in demanding environments. Its crystal structure, typically hexagonal close-packed, provides it with a strong and rigid body, which translates into excellent wear resistance and hardness. The Vickers hardness of tantalum carbide can range from 2800 to 3500 HV, surpassing that of many other ceramic materials. This hardness ensures that it can withstand abrasive conditions without significant deformation or erosion.
The material’s thermal conductivity, around 20-30 W/mK, is relatively high for ceramics, which makes it suitable for applications where heat dissipation is crucial, such as in electronics, where it can be used as a heat sink or in high-temperature components. Additionally, TaC’s low thermal expansion coefficient (around 4-6 x 10^-6 K^-1) minimizes dimensional changes under temperature fluctuations, ensuring precise performance and longevity.
In terms of chemical inertness, tantalum carbide is highly resistant to corrosion from most acids and alkalis, as well as molten metals and gases. This resistance is particularly valuable in harsh chemical environments, where it can maintain its integrity over extended periods. Furthermore, its ability to resist oxidation at elevated temperatures makes it ideal for use in aerospace, automotive, and energy industries.
Another critical aspect of tantalum carbide is its electrical conductivity, which is lower than that of pure tantalum but still significantly higher than most ceramics. It is often used as a substitute for tungsten carbide in electrically conductive applications, like electrical contacts, due to its lower cost and better machinability.
The material’s fabrication methods include powder metallurgy, sintering, and chemical vapor deposition (CVD). Sintered tantalum carbide particles are compacted and heated to form a dense, coherent structure. CVD offers an alternative route to produce thin films or coatings, allowing for precise control over the material’s composition and properties.
In summary, tantalum carbide (TaC) with CAS number 12070-06-3 is a remarkable material characterized by its exceptional hardness, thermal conductivity, chemical stability, and electrical conductivity. Its unique combination of properties makes it suitable for applications in extreme conditions, including aerospace, automotive, energy, and electronics industries, where durability, heat management, and corrosion resistance are paramount. As research and development continue to advance, tantalum carbide’s potential for innovation and performance enhancement will likely grow.
(Tantalum Carbide TaC CAS 12070-06-3 With Good )
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