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CuAlNi powder, a unique alloy comprising copper (Cu), aluminum (Al), and nickel (Ni), is widely recognized for its impressive mechanical properties, shape memory effect, and corrosion resistance. This versatile material has found applications in industries ranging from aerospace to biomedical. In this detailed guide, we will explore the composition, characteristics, uses, advantages, and limitations of CuAlNi powder. We’ll also present specific metal powder models, delve into detailed specifications, and offer a comprehensive FAQ section to answer common questions.

Overview of CuAlNi Powder

CuAlNi powder is a copper-based alloy powder that leverages the unique synergy of its components to deliver a material with exceptional properties. Known for its high-performance attributes, this powder is particularly valued for its shape-memory effect, which allows it to return to its original shape after deformation when exposed to specific temperatures.

Key Features of CuAlNi Powder

  • Composition: Predominantly copper with carefully controlled proportions of aluminum and nickel.
  • Applications: Used in actuators, sensors, biomedical devices, aerospace components, and more.
  • Properties: Excellent thermal and electrical conductivity, corrosion resistance, and wear resistance.
  • Form: Typically available as fine powders with uniform particle sizes for precise applications.
CuAlNi Powder

Types and Specific Models of CuAlNi Powder

Here’s a closer look at specific CuAlNi powder models, their composition, and applications:

Model NameCompositionParticle SizeApplications
CuAlNi-10-20Cu (80%), Al (10%), Ni (10%)10–20 micronsShape-memory actuators and switches
CuAlNi-15-10Cu (75%), Al (15%), Ni (10%)15–25 micronsAerospace components, turbine blades
CuAlNi-20-15Cu (70%), Al (20%), Ni (10%)20–30 micronsPrecision biomedical implants
CuAlNi-12-12Cu (76%), Al (12%), Ni (12%)5–15 micronsMicroelectronic sensors
CuAlNi-Fine30Cu (78%), Al (12%), Ni (10%)<10 micronsHigh-precision welding and soldering
CuAlNi-Coarse50Cu (75%), Al (15%), Ni (10%)30–50 micronsStructural components, industrial bearings
CuAlNi-Super20Cu (72%), Al (18%), Ni (10%)10–20 micronsSmart materials in robotics
CuAlNi-NanoCu (80%), Al (10%), Ni (10%)<1 micronAdvanced nanotechnology applications
CuAlNi-BioMedCu (75%), Al (15%), Ni (10%)10–15 micronsBiocompatible implants
CuAlNi-HighTempCu (78%), Al (12%), Ni (10%)20–40 micronsHigh-temperature furnace components

Composition of CuAlNi Powder

The composition of CuAlNi powder significantly influences its physical and mechanical properties. Let’s break it down:

ElementPercentage (%)Function
Copper (Cu)70–80Provides base structure and conductivity
Aluminum (Al)10–20Enhances strength and corrosion resistance
Nickel (Ni)10–15Introduces shape-memory properties

Variations

The specific ratios of aluminum and nickel are adjusted based on the desired characteristics, such as higher shape-memory functionality or improved resistance to extreme conditions.

Properties and Characteristics of CuAlNi Powder

CuAlNi powder is known for its diverse range of properties, making it suitable for demanding applications.

PropertyDescription
Shape-memory effectReturns to original shape after deformation when heated
Corrosion resistancePerforms well in harsh environments, including marine settings
Thermal conductivityExcellent heat transfer properties
Electrical conductivityEfficient electrical performance
Mechanical strengthHigh tensile strength and durability
Wear resistanceSuperior resistance to abrasion and wear
MachinabilityEasily processed and molded into complex shapes

Applications of CuAlNi Powder

CuAlNi powder is a versatile material with applications across multiple industries.

IndustryApplicationBenefits
AerospaceActuators, turbine bladesLightweight, high strength
BiomedicalImplants, surgical toolsBiocompatibility, shape-memory properties
ElectronicsSensors, connectorsHigh conductivity, precise performance
AutomotiveEngine components, gearsWear resistance, durability
RoboticsSmart materials for movement systemsShape-memory effect, reliability
MarineCorrosion-resistant componentsLong lifespan in saline environments

Specifications, Sizes, and Standards

The table below summarizes the key specifications for CuAlNi powders:

SpecificationDetails
Particle size rangeNano (<1 micron) to coarse (30–50 microns)
Purity99.9%
PackagingSealed bags, vacuum containers
StandardsISO 9001, ASTM B88

Suppliers and Pricing Details

Here are some popular suppliers and indicative pricing:

SupplierRegionPrice Range (USD/kg)Special Features
PowderTech MetalsNorth America$80–120Customizable particle sizes
AlNi SolutionsEurope$90–140Biocompatible grades available
Global Alloy PowdersAsia$70–100High volume discounts
CuAlNi Powder

Comparing Advantages and Limitations

AspectAdvantagesLimitations
CostAffordable compared to alternative alloysSlightly higher than pure metal powders
VersatilityWide range of applicationsLimited supply of niche grades
Shape-memory effectUnique property not found in many materialsRequires precise temperature control

FAQ

QuestionAnswer
What is CuAlNi powder used for?Applications include actuators, sensors, implants, and turbines.
How does the shape-memory effect work?The material returns to its original shape upon heating.
Is CuAlNi powder expensive?Prices range from $70–$140 per kg depending on grade and purity.
Can CuAlNi be used in marine environments?Yes, its corrosion resistance makes it suitable for such settings.
What are its main properties?Corrosion resistance, strength, and shape-memory characteristics.

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