Know More About The Plasma Molybdenum-Nickel-Aluminum Composite Powder

Numerous businesses and industries can benefit from the use of thermal spray protective coatings. In some surface protection technology processes, powder is sprayed onto the working surface. Depending on the process and the particles being sprayed, one-step coatings might be used. One such procedure uses a powder known as plasma molybdenum nickel aluminum composite.

This general-purpose material was specially developed for applications such as hard bearing and wear resistance and produces a medium hard coating. What are the major advantages of this particular powder? Namely, high integrity coatings and one-step spray capability.

What Are the Benefits of One-Step Coatings?

This method is extremely convenient because spraying parameters and the need to change materials are both eliminated. The material was designed to produce the following coatings:

  • high-strength
  • low shrink
  • moderately hard

Coating such as this are recommended for the following:

  • For both grindable and machinable carbon steels, build up and salvage
  • Resistance to particle erosion
  • Wear resistance

The following additional benefits are offered by one-step coatings:

  • Because in order to produce the coating, the number of steps required is lessened, the chance for error is also decreased. There is, therefore, less technique dependence.
  • Virtually eliminated is the allowance for bond coat thickness. So, less undercutting is needed.
  • The separate bond coat requirement is also eliminated.

In general, good erosion resistance is offered by extremely tough molybdenum nickel aluminum composite coatings. Chipping and flaking are minimized, and without cracking, they withstand considerable impact. What’s more, the coatings produced here can be ground to extremely fine finishes. With conditional technique, good machine finishes can be obtained.

For the physical properties and material powder characteristics of plasma molybdenum nickel aluminum composite, click here.

Plasma Molybdenum-Nickel-Aluminum Composite Powder Finishing

Machining: With a certain degree of technique dependence, and under certain conditions, with standard tungsten carbide tools, these coatings are machinable (see grinding for the preferred technique). With this technique, however, tool wear and the quality of finish will vary considerably

Grinding: This is the best method of finishing where plasma molybdenum nickel aluminum composite powder is concerned. With both silicon carbide and aluminum oxide wheels, excellent finishes can be obtained. But unless low bond strength, relatively coarse grain wheels are used, wheel loading can occur because these coatings are medium hard.

Surface Protection Provided

Most substrates can accept this type of plasma sprayed coating as long as they are sufficiently cleaned – a light grit blast is used to remove surface oxides. In fact, in some cases, a bond coat is needed. A professional can assist in diagnosing substrate specific requirements.

Are There Limitations to Thicknesses?

With no need or dependence for temperature control, and without cracking, heavy buildup can be applied. So, there is no limitation on thickness when using plasma molybdenum nickel aluminum composite.

If you feel that your business or industry can benefit from protective coatings using plasma sprayed molybdenum nickel aluminum composite powder, or if you would like to receive general information regarding thermal spray techniques and advantages, contact one of the knowledgeable experts at A & A Coatings. We can fulfill all of your protective coating and thermal spray needs.

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