Titanium Coated Diamond Powder

Diamond powder is widely used in industrial applications as an abrasive material due to its extreme hardness. However, diamond has certain limitations. By coating diamond particles with titanium, some enhanced properties can be achieved.

Overview of Titanium Coated Diamond Powder

Titanium coated diamond powder refers to diamond particles that have a coating of titanium metal applied to their surface. This composite material combines the hardness of diamond with beneficial properties imparted by the titanium coating.

Benefits of Titanium Coating on Diamond Powder:

• Improves bonding between diamond particles and metal matrix in diamond tools
• Provides corrosion resistance
• Alters friction coefficients
• Can enable higher working temperatures
• Adjusts electrical conductivity
• Changes thermal conductivity

Key Properties of Titanium Coated Diamond Powder:

Particle Sizes Available:

• Nanodiamond powder (< 1 micron)
• Microdiamond powder (1 – 60 microns)
• Macrocrystalline powder (60+ microns)

Composition of Titanium Coated Diamond Powder

Titanium coated diamond powder consists of a diamond particle core with a titanium coating applied to the outer surface.

The coating thickness, uniformity, and quality determine the material properties and performance. Advanced coating processes allow control of these parameters.

Properties and Characteristics

Titanium coated diamond particles exhibit a unique combination of the extreme hardness and thermal properties of industrial diamond along with the corrosion resistance, friction coefficients, and other benefits imparted by the titanium metal coating.

Key Properties:

Key Characteristics:

• Composite of diamond core for hardness and titanium metal coating
• Coating provides corrosion protection, oxidation resistance
• Alters frictional behavior compared to uncoated diamond
• Allows engineering of conductivity, thermal properties
• Enables high temperature operation
• Improves metallurgical bonding to matrix

Applications and Uses

Titanium coated diamond powder has found usage across a diverse array of industrial sectors. Some key applications include:

Automotive

• Grinding wheels
• Cutting tools
• Polishing compounds
• Engine parts

Aerospace

• Abrasives for composite materials
• Precision drilling/grinding
• Polishing applications

Electronics

• Diamond wafering blades
• Polishing applications
• Heat spreaders

Construction

• Stone/ceramic cutting
• Drilling/grinding tools
• Wire saws
• Masonry applications

Medical

• Precision cutting tools
• Grinding/polishing tools
• Dental burs/drills

Oil/Gas

• Drill bits
• Downhole tools

Specifications and Standards

Titanium coated diamond powder is available in a variety of particle size distributions, coatings thicknesses, purities, and can be customized to meet application requirements.

Particle Sizes:

Titanium Coating Thickness:

• Typically 1 – 5 microns
• Custom thicknesses available

Standards Compliance:

• ISO 13938 – Sieve analysis
• ASTM E11 – Particle size characterization
• Customized to application specifications

Suppliers and Pricing

Titanium coated diamond powder is sold commercially by a number of specialty suppliers. Pricing varies based on:

• Particle size distribution
• Volume purchased
• Coating thickness/quality
• Product customization

Representative Pricing:

Contact specialty distributors for custom particle specifications and quotes.

Leading Suppliers

• Advanced Diamond Technologies
• Diamond Materials GmbH
• Eco Diamond Solutions
• SP3 Diamond Technologies
• Delaware Diamond Knives

Comparing Titanium Coated vs. Uncoated Diamond Powder

Titanium coated diamond powder offers some advantages and differences compared to uncoated diamond particles:

In summary, the titanium coating on diamond powder enhances a number of performance parameters while retaining the extreme hardness associated with diamond particles.

FAQ

Here are answers to some common questions about titanium coated diamond powder:

What is the coating process for applying the titanium layer?

Chemical vapor deposition (CVD) is typically used to deposit the titanium coating uniformly onto the diamond microparticles or nanoparticles. This allows controlled coating thicknesses.

How strong is the bonding between the titanium layer and diamond core?

There is extremely strong carbide bonding between the titanium coating and diamond powder. This ensures excellent adhesion and durability.

What industries use titanium coated diamond powder?

Automotive, aerospace, electronics, construction, medical, and oil/gas industries utilize this material for grinding, polishing, drilling, cutting tools, engine parts, and a variety of friction and wear applications.

What particle size titanium coated diamond is best for improving tool life?

Generally nano and micro-sized particles exhibit substantial improvements to bonding strength, wear resistance and extending operational lifetimes of diamond tools, while still retaining nanoscale diamond sharpness.

Is the coating uniform on all diamond particle sizes?

Advanced chemical vapor deposition (CVD) processes allow high quality coatings across a wide range of diamond powders, from nanodiamond through macrosized particles. Coating consistency determines overall performance.

Can any metal be used to coat diamond powder?

Titanium offers an optimal combination of coating adhesion, corrosion protection, thermal resistance, and alteration of material properties like friction and conductivity. Other metals like tungsten or chromium are also used in some diamond coating applications.

What are typical prices for titanium coated diamond abrasives?

Prices vary widely based on quality, customization, particle size and volume – from around $7 per carat for larger Ti coated macrodiamond powder through $600 per carat for precision nanodiamond grades.

Conclusion

In conclusion, titanium coated diamond powder retains the extreme hardness of diamond particles while gaining corrosion resistance, thermal stability, tailored frictional behavior, conductivity, and bonding properties from the nanothickness titanium metal coating. Combining the two materials creates a unique composite that expands the range of applications and improves performance of diamond tools and parts across demanding industrial sectors. With robust CVD coating processes ensuring uniform, durable coatings on particles ranging from nanodiamond through macrosized powders, titanium coated diamond abrasives will continue gaining traction in high precision, difficult machining and friction scenarios requiring diamond’s mechanical capabilities at higher working temperatures, speeds, and lifetimes.

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