Overview of Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material
Molybdenum (Mo) is a chemical element with the atomic number 42 and is represented by the symbol Mo on the periodic table. It is a transition metal located in group 6 and period 5. Molybdenum is known for its high melting point, excellent strength, and thermal stability, making it a crucial component in various industrial applications.
Feature of Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material
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High Melting Point: Molybdenum has one of the highest melting points among all pure elements, at 2,623°C (4,753°F). This property makes it ideal for high-temperature applications.
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Strength and Toughness: Even at high temperatures, molybdenum maintains its strength and hardness, which is essential for use in extreme environments.
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Corrosion Resistance: Molybdenum exhibits good corrosion resistance to many acids and alkalis, although it can be attacked by oxidizing acids like nitric acid.
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Thermal Conductivity: It is an excellent conductor of heat, making it suitable for applications where efficient heat transfer is required.
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Alloying Agent: Molybdenum is widely used as an alloying agent, particularly with steel, to enhance hardness, toughness, and resistance to wear and corrosion. Stainless steels often contain molybdenum for these properties.
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Electrical Applications: Due to its low resistivity and high-temperature stability, molybdenum is used in electrical contacts and heating elements.
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Lubricity: Molybdenum disulfide (MoS₂) is a common dry lubricant, providing low friction surfaces in high-pressure, high-temperature conditions.
(Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material)
Parameters of Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material
Cobalt-Chromium-Molybdenum (CoCrMo) alloy is a widely used material in various industrial applications, particularly for wear-resistant coatings, cutting tools, and medical implants due to its excellent mechanical properties, corrosion resistance, and biocompatibility. When used as a sputtering target material for thin film deposition processes like Physical Vapor Deposition (PVD), the following parameters are important:
1. Composition: The typical composition of CoCrMo alloy ranges from 45-60% Cobalt (Co), 20-30% Chromium (Cr), and 10-20% Molybdenum (Mo) with small amounts of other elements like tungsten (W), vanadium (V), or nickel (Ni) for specific purposes.
2. Melting Point: The melting point of CoCrMo is around 2470°C (4480°F), which ensures efficient evaporation during sputtering.
3. Thermal Conductivity: It has moderate thermal conductivity, which helps maintain stable plasma conditions and prevent overheating of the target.
4. Density: The density of CoCrMo is approximately 7.8 g/cm³, affecting the deposition rate and film thickness.
5. Hardness: The hardness of the alloy is crucial for its wear resistance, typically having a Rockwell C hardness of 60-70 HRC.
6. Surface Quality: A high-quality surface finish is essential for the target, with low roughness and contamination, to ensure a clean sputtering process.
7. Sputter Yield: The efficiency of material ejection from the target, which affects the deposition rate and film uniformity.
8. Target Design: The target can be in different shapes (cylindrical, flat, or disk) and geometries (single or multi-target) depending on the application and desired coating properties.
9. Life Expectancy: The lifespan of the CoCrMo target depends on the operating conditions, but it can range from several hours to months, with proper cooling systems and optimized sputtering parameters.
10. Cost: The cost of CoCrMo targets can vary depending on purity, supplier, and demand, but it is generally higher than that of some other materials due to its high-performance characteristics.
These parameters need to be considered when selecting and using CoCrMo alloy as a sputtering target for specific applications.
(Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material)
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FAQ
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What are the primary uses of Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material?
Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material is primarily used in the production of steel alloys, accounting for over 80% of its consumption. It’s also used in chemicals, lubricants, electronics, and specialized applications like lighting and nuclear energy.
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Is molybdenum found naturally?
Yes, molybdenum is found naturally in the Earth’s crust, often in minerals like molybdenite (MoS₂) and powellite (CaMoO₄). It is mined as a byproduct of copper mining.
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How does Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material affect human health?
In small amounts, molybdenum is an essential trace element for humans, playing a role in enzyme functions. However, excessive intake can lead to toxicity, though this is rare under normal dietary conditions.
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Is molybdenum magnetic?
Molybdenum itself is not magnetic. It is classified as a diamagnetic material, meaning it repels magnetic fields slightly rather than being attracted to them.
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What industries rely heavily on molybdenum?
The steel industry is the largest consumer of molybdenum, followed by the chemical, oil and gas, automotive, aerospace, and construction industries.
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Is recycling molybdenum possible?
Yes, molybdenum can be recycled from scrap materials. Given its valuable properties and relative scarcity, recycling helps conserve resources and is economically viable.
(Cobalt chromium molybdenum alloy rod CoCrMo sputtering target material)
