Nanocrystalline thin films synthesized from a Ti2AlN compound target by high power impulse magnetron sputtering technique

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Teng Fei Zhang
  • Qi Min Wang
  • Junghoon Lee
  • Peiling Ke
  • Roman Nowak

  • Kwang Ho Kim

Research units

  • Pusan National University
  • Guangdong University of Technology
  • Chinese Academy of Sciences

Abstract

Ti-Al-N thin films were synthesized utilizing a high power impulse magnetron sputtering (HIPIMS) from a Ti2AlN compound target. The deposition temperatures and bias voltages were varied in the range of room temperature (RT) to 450°C and 0V to -70V, respectively. It was indicated that amorphous films formed at low deposition temperatures of RT and 300°C, which changed into MAX-phase Ti2AlN films after vacuum annealing at 800°C for 1h. Densely packed nano-fibrous crystalline films mainly composing of Ti2AlN MAX phase and tetragonal Ti2N phase were acquired at deposition temperature of 450°C, which exhibited stable film structure during vacuum annealing at 800°C. The Ti2AlN-Ti2N composite films exhibited excellent oxidation and corrosion resistance, as compared to (Ti,Al)N film having same Ti/Al ratio and/or TiN film synthesized by a hybrid coating system with HIPIMS and DC pulse magnetron sputtering. The mechanical properties of the Ti2AlN-Ti2N films were also investigated in this work.

Details

Original languageEnglish
Pages (from-to)199-206
Number of pages8
JournalSurface and Coatings Technology
Volume212
Publication statusPublished - Nov 2012
MoE publication typeA1 Journal article-refereed

    Research areas

  • Corrosion, High power impulse magnetron sputtering (HIPIMS), High resolution TEM (HRTEM), MAX-phase films, Mechanical properties, Oxidation

ID: 4850496