High-Purity Copper Powder

Copper is an indispensable metal in the modern world, used in everything from electrical wiring to coinage. But when it comes to advanced manufacturing and industrial applications, high-purity copper powder stands out for its unique properties and versatility. This comprehensive guide will take you through the intricacies of high-purity copper powder, its types, applications, properties, and much more. Let’s dive in!

Overview of High-Purity Copper Powder

High-purity copper powder is a fine, free-flowing metallic powder known for its exceptional conductivity, malleability, and versatility. Used in a wide range of applications, from electronics to metal coatings, this powder is critical in industries that demand high performance and precision.

Key Details:

  • Purity Levels: Typically, 99.9% to 99.999%
  • Particle Size: Varies from nanometers to micrometers
  • Applications: Electronics, metallurgy, 3D printing, coatings, and more
high-purity copper powder

Types and Characteristics of High-Purity Copper Powder

High-purity copper powder comes in various types, each with specific characteristics suited to different applications. Here are some of the most notable ones:

TypeCompositionPropertiesApplications
Electrolytic99.9% CuHigh purity, good electrical conductivityElectrical components, batteries
Atomized99.95% CuSpherical particles, excellent flowabilityMetal coatings, additive manufacturing
Reduced99.98% CuFine particles, high surface areaCatalysts, sintering processes
Precipitated99.97% CuUniform particle size, high purityElectronics, conductive inks
Nano Copper Powder99.999% CuNanoscale particles, superior propertiesNanotechnology, medical applications

Detailed Description of Specific Models

Let’s explore some specific models of high-purity copper powder, their features, and what makes them stand out.

  1. Electrolytic Copper Powder (ECP-100)
  • Purity: 99.9%
  • Particle Size: <100 microns
  • Applications: Used extensively in electrical and electronic components due to its excellent conductivity.
  1. Atomized Copper Powder (ACP-200)
  • Purity: 99.95%
  • Particle Size: 10-200 microns
  • Applications: Ideal for metal coatings and 3D printing owing to its spherical particle shape and flowability.
  1. Reduced Copper Powder (RCP-50)
  • Purity: 99.98%
  • Particle Size: <50 microns
  • Applications: Preferred in catalyst and sintering processes for its high surface area and fine particle size.
  1. Precipitated Copper Powder (PCP-150)
  • Purity: 99.97%
  • Particle Size: 1-150 microns
  • Applications: Commonly used in conductive inks and electronic applications for its uniform particle size and high purity.
  1. Nano Copper Powder (NCP-20)
  • Purity: 99.999%
  • Particle Size: <20 nanometers
  • Applications: Utilized in cutting-edge nanotechnology and medical applications due to its superior properties at the nanoscale.
  1. High-Density Copper Powder (HDCP-500)
  • Purity: 99.9%
  • Particle Size: 20-500 microns
  • Applications: Used in applications requiring high-density materials like metal injection molding.
  1. Spherical Copper Powder (SCP-100)
  • Purity: 99.95%
  • Particle Size: 50-100 microns
  • Applications: Favored in 3D printing and metal coatings for its uniform spherical particles.
  1. Flake Copper Powder (FCP-300)
  • Purity: 99.9%
  • Particle Size: <300 microns
  • Applications: Used in lubrication and conductive coatings due to its flake-like structure.
  1. Conductive Copper Powder (CCP-50)
  • Purity: 99.95%
  • Particle Size: <50 microns
  • Applications: Primarily used in conductive adhesives and pastes.
  1. High-Purity Ultrafine Copper Powder (HPCP-10)
    • Purity: 99.99%
    • Particle Size: <10 microns
    • Applications: Ideal for high-precision electronic applications and conductive inks.

Composition of High-Purity Copper Powder

Understanding the composition of high-purity copper powder is crucial for selecting the right type for your needs. Here’s a breakdown of the typical composition:

ElementPercentage (%)
Copper (Cu)99.9 – 99.999
Oxygen (O)<0.1
Other Impurities<0.001

The high copper content ensures excellent electrical and thermal conductivity, while minimal impurities enhance performance in critical applications.

Properties and Characteristics

High-purity copper powder boasts a range of properties that make it ideal for various industrial applications. Let’s delve into these characteristics:

  • Electrical Conductivity: Superior to most other metals, making it ideal for electrical applications.
  • Thermal Conductivity: Excellent thermal properties ensure efficient heat dissipation in electronics.
  • Malleability and Ductility: Easily shaped and formed, making it versatile for manufacturing processes.
  • Corrosion Resistance: Good resistance to corrosion, particularly in pure forms, extending the lifespan of products.
  • Surface Area: High surface area in finer powders enhances reactivity in chemical processes.

Applications of High-Purity Copper Powder

High-purity copper powder is utilized in a plethora of applications due to its outstanding properties. Here’s a table summarizing its diverse uses:

IndustryApplications
ElectronicsConductive inks, printed circuit boards (PCBs), connectors
MetallurgyMetal injection molding, sintering, brazing alloys
Additive Manufacturing3D printing, rapid prototyping
CoatingsAntimicrobial coatings, decorative coatings
Chemical ProcessesCatalysts, chemical reactions
MedicalAntimicrobial agents, medical devices
EnergyBatteries, fuel cells

Specifications, Sizes, Grades, and Standards

High-purity copper powder is available in various specifications to meet the specific needs of different industries. Here’s a detailed table:

SpecificationDetails
Purity99.9% to 99.999%
Particle SizeNano to micron scale (10nm to 500 microns)
GradeElectrolytic, Atomized, Reduced, Precipitated, Nano
StandardsASTM B216, ISO 9001

Suppliers and Pricing Details

The market for high-purity copper powder includes a range of suppliers. Here are some notable ones and their pricing details:

SupplierLocationProductPrice (per kg)
American ElementsUSAElectrolytic Copper Powder$300
NanochemazoneCanadaNano Copper Powder$1500
Sigma-AldrichGlobalHigh-Purity Copper Powder$400
Shanghai MetalChinaAtomized Copper Powder$350
Metal Powder SupplyUKReduced Copper Powder$375

Advantages and Disadvantages

Choosing high-purity copper powder involves understanding its pros and cons. Here’s a comparison:

AspectAdvantagesDisadvantages
ConductivityHigh electrical and thermal conductivityPotential oxidation without proper handling
MalleabilityEasily shaped and formed for various applicationsCan be expensive, especially at higher purity levels
VersatilitySuitable for a wide range of industrial applicationsRequires specialized storage to prevent contamination
AvailabilityWidely available from numerous suppliers worldwidePrice fluctuations based on market demand and supply
high-purity copper powder

FAQs

QuestionAnswer
What is high-purity copper powder?It is a fine, free-flowing metallic powder with a copper purity of 99.9% or higher, used in various industrial applications.
How is high-purity copper powder produced?Methods include electrolytic refining, atomization, reduction, and precipitation to achieve different purity levels and particle sizes.
What are the main uses of high-purity copper powder?Applications range from electronics and additive manufacturing to coatings, catalysis, and medical devices.
Why is purity important in copper powder?Higher purity ensures better electrical and thermal conductivity, improved performance, and fewer impurities affecting the final product.

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