Overview of CAS7440-25-7 99.9%Min Purity 3n Black Ta Metal Tantalum Powder
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 CAS7440-25-7 99.9%Min Purity 3n Black Ta Metal Tantalum Powder
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.
(CAS7440-25-7 99.9%Min Purity 3n Black Ta Metal Tantalum Powder)
Parameters of CAS7440-25-7 99.9%Min Purity 3n Black Ta Metal Tantalum Powder
CAS Number: 7440-25-7
Product Name: Tantalum (Ta) Metal Powder, 99.9% Purity, 3N Black
Description:
CAS 7440-25-7 refers to high-purity tantalum metal powder, specifically a 3N grade, characterized by its exceptional purity level of at least 99.9%. The ‘3N’ notation denotes the highest standard in metal purity, indicating that the impurities present in the powder are less than one part per million. This level of purity is crucial for applications where superior conductivity, stability, and performance are essential.
The black color of this tantalum powder suggests that it has undergone a surface treatment or processing to enhance its appearance, which could be due to a variety of reasons such as improved sinterability, better dispersion in certain matrices, or enhanced corrosion resistance. The black color also indicates that the powder may have been produced through a technique like argon gas atomization, which results in a fine, spherical particle morphology.
Tantalum is a rare, hard, and dense transition metal with remarkable properties, including high melting point (3017°C), excellent corrosion resistance, and high strength-to-weight ratio. These attributes make it suitable for various demanding applications across industries, including aerospace, electronics, chemical processing, and nuclear energy.
In the electronics industry, tantalum is used in capacitors, especially in power electronics, due to its self-healing oxide layer that minimizes leakage current. It is also employed in semiconductor fabrication as a crucible material for growing single-crystal silicon. In the aerospace sector, tantalum alloys find application in jet engines, due to their heat resistance and lightweight nature.
The 3N purity ensures that the powder is free from unwanted impurities, which can affect the performance, reliability, and longevity of the final product. This makes it ideal for critical components where contamination must be avoided, such as in medical implants, where biocompatibility is paramount.
Processing and Handling:
This tantalum metal powder is typically supplied in an inert atmosphere to prevent oxidation or contamination. It should be handled in a cleanroom environment or under controlled conditions to maintain its purity. Proper storage in a dry, sealed container is essential to preserve its properties over time.
Applications:
– Electronic Components: High-purity tantalum powder is used in capacitors, RF devices, and other electronic applications due to its superior electrical and thermal properties.
– Aerospace: Tantalum alloys are employed in engine components, structural parts, and heat exchangers for their strength, durability, and resistance to extreme temperatures.
– Chemical Processing: Tantalum’s corrosion resistance makes it suitable for use in harsh chemical environments, such as acid-resistant coatings or catalyst supports.
– Medical Devices: Due to its biocompatibility, tantalum is utilized in dental implants, orthopedic implants, and other medical applications.
In conclusion, CAS 7440-25-7, 99.9% pure tantalum metal powder in 3N grade, is a premium material with unique properties that cater to high-performance requirements in various industries. Its exceptional purity, combined with its inherent strength and resistance to corrosion, makes it a valuable component in a wide range of applications where reliability and precision are non-negotiable.
(CAS7440-25-7 99.9%Min Purity 3n Black Ta Metal Tantalum Powder)
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