Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

Plasma-spray coatings are widely used in industry to protect the substrate against aggressive environments or to alter the surface properties to enhance the wear resistance[1]. The coating is an aggregate of powder particles which are impacted after being heated on the substrate surface. As a result of the fast cooling rates [2], no significant diffusion occurs at the coating/substrate interface and between subsequent coating layers. Different defects in the coating layer often occur, such as delaminations between subsequent deposition layers, pores, non-melted particles, cracks due to thermal coefficient mismatch and loss of adhesion between coatings and substrates.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16B

Chapter

Chapter 6: Material Properties

Section

Coatings and Layers

Pages

1585-1591

DOI

10.1007/978-1-4615-5947-4_206

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Ultrasonic Characterization of Plasma Spray Coating

Brunswick, ME

Plasma-spray coatings are widely used in industry to protect the substrate against aggressive environments or to alter the surface properties to enhance the wear resistance[1]. The coating is an aggregate of powder particles which are impacted after being heated on the substrate surface. As a result of the fast cooling rates [2], no significant diffusion occurs at the coating/substrate interface and between subsequent coating layers. Different defects in the coating layer often occur, such as delaminations between subsequent deposition layers, pores, non-melted particles, cracks due to thermal coefficient mismatch and loss of adhesion between coatings and substrates.