Cobalt-Chromium-Molybdenum Target (CoCrMo Target) Description
Cobalt-Chromium-Molybdenum Target (CoCrMo Target) is a high-strength, corrosion-resistant sputtering material made from an alloy known for its exceptional mechanical integrity and chemical stability. This ternary alloy combines the individual strengths of Cobalt, Chromium, and Molybdenum to create a material with remarkable structural performance under extreme conditions. Cobalt serves as the primary matrix element, providing excellent wear resistance, high-temperature strength, and inherent toughness. Chromium significantly contributes to corrosion resistance by forming a stable, passive oxide layer (Cr₂O₃) on the surface, protecting the material from oxidation and chemical attacks in acidic and oxidative environments. Molybdenum enhances the strength of the alloy at elevated temperatures, increases hardness, and improves resistance to pitting and crevice corrosion, particularly in chloride-rich or reducing environments. The microstructure of CoCrMo is typically refined by powder metallurgy processes or vacuum melting, resulting in a dense, homogeneous material with controlled grain size and minimal porosity. The alloy exhibits a high melting range (approximately 1 300-1 400°C, depending on composition), a moderate thermal conductivity, and a thermal expansion coefficient compatible with standard substrate materials, ensuring stability during sputtering. Its electrical resistance is moderately low, making it suitable for uniform thin film formation. Overall, the CoCrMo Target demonstrates excellent thermal, mechanical, and chemical properties, making it extremely reliable for precise and stable deposition processes.
Cobalt-Chromium-Molybdenum Target (CoCrMo Target) Specification
Properties
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Chemical Composition
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Co, Cr, Mo
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Purity
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99.95%
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Form
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Planar Disc
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*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.
Size: Custom
Cobalt-Chromium-Molybdenum Target (CoCrMo Target) Applications
- Biomedical Coatings: CoCrMo is frequently used for orthopaedic and dental implant coatings due to its outstanding biocompatibility, wear resistance, and corrosion resistance in bodily fluids. It contributes to enhancing the longevity and bio-functionality of prosthetics.
- Aerospace and Turbine Components (Protective Coatings): Thin layers of CoCrMo are applied to engine components and turbine blades to improve surface durability, thermal resistance, and performance in high-stress and high-temperature environments.
- Microelectronics and MEMS Devices: The stability of the alloy and its moderate electrical resistance render it useful for magnetic thin films, micro-electromechanical systems (MEMS), and other electronic applications where mechanical integrity and corrosion resistance are critical.
- Wear-resistant Coatings: Sputtered CoCrMo coatings are employed in industrial tools, cutting instruments, and sliding components to achieve high hardness and abrasion resistance, especially in aggressive chemical or mechanical environments.
- Surface Engineering in Chemical Processing Facilities: Thin CoCrMo coatings protect the surfaces of valves, reactors, and pumps exposed to corrosive or erosive chemical flows, particularly where both mechanical strength and corrosion resistance are required.
Cobalt-Chromium-Molybdenum Target (CoCrMo Target) Packaging
Our products are packaged in custom cartons of various sizes, tailored to the dimensions of the material. Smaller items are securely packaged in PP cartons, while larger items are placed in custom wooden crates. We ensure strict compliance with custom packaging requirements and the use of appropriate cushioning materials to provide optimal protection during transport.
Packaging: Carton, wooden crate, or custom.
Manufacturing Process
1. Brief Overview of the Manufacturing Process
2. Testing Procedures
- Chemical composition analysis - Verified with techniques such as GDMS or XRF to ensure compliance with purity requirements.
- Mechanical property testing - Includes tensile strength, yield strength, and elongation tests to evaluate material performance.
- Dimensional inspection - Measures thickness, width, and length to ensure compliance with specified tolerances.
- Surface quality inspection - Checks for defects such as scratches, cracks, or inclusions through visual and ultrasonic testing.
- Hardness testing - Determines material hardness to confirm uniformity and mechanical reliability.
Frequently Asked Questions about Cobalt-Chromium-Molybdenum Targets (CoCrMo Targets)
Q1: How are your CoCrMo Targets manufactured?
A1: We employ vacuum arc melting and/or powder metallurgy combined with hot isostatic pressing (HIP) to ensure high density, low porosity, and excellent composition homogeneity.
Q2: What sputtering processes are compatible with CoCrMo Targets?
A2: CoCrMo Targets are compatible with both DC and RF magnetron sputtering systems. The process parameters may vary based on layer thickness and substrate material.
Q3: Can you provide custom sizes or shapes for the Targets?
A3: Yes. We offer a broad range of customisations, including planar, circular, rectangular, and rotary targets, with options for backing plates and adhesive services.
Performance Comparison Table with Competing Products
CoCrMo Target vs. Titanium Target vs. Stainless Steel Target
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Specification
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CoCrMo Target
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Titanium Target
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Stainless Steel Target
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Composition
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Co, Cr, Mo
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Ti
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Fe, Cr, Ni, Mo
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Hardness
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High hardness and wear resistance
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Moderate hardness
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Moderate to high hardness,
depending on alloy composition
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Corrosion Resistance
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Excellent corrosion resistance, particularly in biological environments
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Excellent corrosion resistance, particularly in harsh environments
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Good corrosion resistance, but generally lower than CoCrMo and Titanium
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Thermal Stability
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High thermal stability, suitable for high-temperature applications
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High thermal stability, excellent in aerospace and medical applications
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Moderate thermal stability, used in industrial and some medical applications
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Wear Resistance
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Outstanding wear resistance
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Moderate wear resistance
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Moderate wear resistance
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Biocompatibility
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Highly biocompatible, ideal for medical implants and prosthetics
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Highly biocompatible, commonly used in medical implants
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Generally biocompatible, however varies with alloy (e.g., 316L is commonly used for medical implants)
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Electrical Conductivity
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Low electrical conductivity
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Low electrical conductivity, mainly used for its strength and low weight
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Good electrical conductivity
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Applications
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Medical implants, prosthetics, aerospace components, dental implants
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Aerospace, medical devices (e.g., implants), electronics
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Industrial equipment, medical tools, coatings, aerospace components
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Density
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8.3-8.6 g/cm³
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4.5 g/cm³
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7.9-8.1 g/cm³
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Melting Point
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1 300°C to 1 400°C
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~1 668°C
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1 400°C to 1 500°C
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Typical Purity
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99.5% or higher
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99.9% or higher
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99.9% or higher
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Related Information
- Raw Materials - Cobalt
Physical Properties
- Density: ~8.90 g/cm³
- Melting Point: 1 495°C
- Boiling Point: 2 927°C
- Magnetism: Ferromagnetic up to 1 115°C (Curie temperature), thus suitable for magnetic materials
- Appearance: Bright silver-grey with a slight bluish hue; stable in air at room temperature
Chemical Properties
- Cobalt is oxidation-resistant and maintains stability in air by forming a passive oxide layer.
- In compounds, it typically exhibits oxidation states +2 and +3 (Co²⁺ and Co³⁺) and forms a wide variety of oxides, chlorides, and sulfates.
- Cobalt compounds are often highly coloured (e.g., Cobalt Blue from CoAl₂O₄).
Industrial Role
- Superalloys: Cobalt is frequently used to enhance high-temperature strength and oxidation resistance in turbine blades and aerospace components.
- Magnetic Materials: As a key component in AlNiCo, Samarium-Cobalt, and other permanent magnets, Cobalt plays a significant role in electronics and electric motors.
- Batteries: Cobalt is used in cathodes of lithium-ion batteries (e.g., LiCoO₂) due to its excellent electrochemical properties.
- Sputtering targets and thin films: Cobalt and its alloys are employed in thin film deposition for magnetic, wear-resistant, and corrosion-resistant coatings.
Other Properties
- Mechanical Strength: High strength and ductility at both room and elevated temperatures.
- Corrosion Resistance: Good resistance to acids and moisture; suited for chemically aggressive environments.
- Biological Role: An essential trace element in human nutrition, found in Vitamin B₁₂ (Cobalamin), although elemental Cobalt is toxic in excess.
Raw Materials - Chromium
Physical Properties
- Density: ~7.19 g/cm³
- Melting Point: 1 907°C
- Boiling Point: 2 671°C
- Hardness: Chromium is one of the hardest metallic elements (Mohs hardness ~8.5) and exhibits excellent wear resistance.
- Appearance: Silvery-grey, brittle metal with high luster and reflectivity.
Chemical Properties
- Chromium is highly resistant to oxidation and tarnishing, forming a stable, passive oxide layer (Cr₂O₃) that protects the underlying metal from corrosion.
- It generally occurs in oxidation states +3 and +6. Cr³⁺ is more stable and less toxic, whereas Cr⁶⁺ is a potent oxidising agent, but environmentally harmful.
- Chromium compounds are known for their vibrant colours (e.g., Chromium Green, Chromium Yellow) and are commonly used in pigments and dyes.
Industrial Applications
- Stainless Steel and Alloys: Chromium is a key element in stainless steel, typically added in a concentration of ≥10.5% to enhance corrosion and oxidation resistance.
- Protective Coatings: Due to its hardness and shiny finish, it is used for chromium platings and PVD coatings (Physical Vapor Deposition) for tools, automotive parts, and electronics.
- Sputtering targets and thin films: Chromium targets are used to produce hard, conductive, and corrosion-resistant coatings on semiconductors, displays, and optical devices.
- Refractory Materials: Due to its high melting point, chromium is used in the manufacture of high-temperature ceramics and stones.
Other Properties
- Electrical Specific Resistance: Moderate (~12.9 μΩ-cm), thus suitable for controlled conductive layers.
- Toxicity: While metallic chromium and Cr³⁺ compounds are generally considered safe, Cr⁶⁺ compounds are toxic and subject to regulation.
- Environmental Stability: Chromium forms stable compounds that do not decompose in many harsh chemical environments.
Raw Materials - Molybdenum
Physical Properties
- Density: ~10.2 g/cm³
- Melting Point: 2 623°C (one of the highest among all metals)
- Boiling Point: 4 639°C
- Hardness: High strength and hardness, particularly at elevated temperatures
- Thermal and Electrical Conductivity: Good heat and current conductor; thermal conductivity ~138 W/m-K
Chemical Properties
- Molybdenum is relatively inert in air and water at room temperature.
- It forms stable oxides (notably MoO₃) and is resistant to many acids, particularly when alloyed.
- Common oxidation states are +4 and +6, with Mo⁶⁺ most frequently occurring in compounds.
Industrial Applications
- Alloying Agent: Widely used in steel and superalloy production to enhance strength, toughness, and corrosion resistance.
- Electronics and Thin Films: Mo is a critical material in sputtering targets for semiconductor connections, TFT back electrodes, and solar cells due to its conductivity and adhesion.
- High Temperature Components: Ideal for furnace parts, filaments, and aerospace components exposed to extreme heat.
- Catalysis: Molybdenum compounds act as catalysts in petroleum refining and chemical synthesis.
Other Properties
- Vacuum Compatibility: Excellent for use in vacuum environments due to low vapor pressure.
- Machinability: While Mo is hard, it can be machined with appropriate tools and care.
- Biological Role: Trace amounts are essential in human and animal metabolism and are involved in enzyme function.
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