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Role Of Carbon Nanotube Dispersion In Fracture Toughening Of Plasma Sprayed Aluminum Oxide - Carbon Nanotube Nanocomposite Coating, Kantesh Balani

FIU Electronic Theses and Dissertations

Aluminum oxide (A1₂0₃, or alumina) is a conventional ceramic known for applications such as wear resistant coatings, thermal liners, heaters, crucibles, dielectric systems, etc. However applications of A1₂0₃ are limited owing to its inherent brittleness. Due to its excellent mechanical properties and bending strength, carbon nanotubes (CNT) is an ideal reinforcement for A1₂0₃ matrix to improve its fracture toughness.

The role of CNT dispersion in the fracture toughening of the plasma sprayed A1₂0₃-CNT nanocomposite coating is discussed in the current work. Pretreatment of powder feedstock is …