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Surface modification of a Ti2AlC soft ceramic by plasma nitriding treatment

Journal Article


Abstract


  • Plasma nitriding treatment was used to improve the surface hardness of a Ti2AlC soft ceramic due to its relatively low hardness of ~3GPa. A continuous coating was formed by plasma nitriding Ti2AlC at 800°C for 4h in a mixture of 75vol.% N2 and 25vol.% H2 gas atmosphere. The surface layer is about 6μm in thickness and composed of TiN with a small amount of AlN. The hardness and the adhesion of the coating to the substrate were evaluated with Vickers hardness and scratch tests. The results showed that a strong coherent coating was formed and surface hardness was improved. The plasma nitriding treatment is a promising technique to improve the surface properties of Ti2AlC at relatively low temperatures.

Authors


  •   Li, Shibo (external author)
  •   Hu, Shujun (external author)
  •   Hee, Ay Ching (external author)
  •   Zhao, Yue

Publication Date


  • 2015

Citation


  • Li, S., Hu, S., Hee, A. & Zhao, Y. (2015). Surface modification of a Ti2AlC soft ceramic by plasma nitriding treatment. Surface and Coatings Technology, 281 164-168.

Scopus Eid


  • 2-s2.0-84947058932

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4826

Number Of Pages


  • 4

Start Page


  • 164

End Page


  • 168

Volume


  • 281

Abstract


  • Plasma nitriding treatment was used to improve the surface hardness of a Ti2AlC soft ceramic due to its relatively low hardness of ~3GPa. A continuous coating was formed by plasma nitriding Ti2AlC at 800°C for 4h in a mixture of 75vol.% N2 and 25vol.% H2 gas atmosphere. The surface layer is about 6μm in thickness and composed of TiN with a small amount of AlN. The hardness and the adhesion of the coating to the substrate were evaluated with Vickers hardness and scratch tests. The results showed that a strong coherent coating was formed and surface hardness was improved. The plasma nitriding treatment is a promising technique to improve the surface properties of Ti2AlC at relatively low temperatures.

Authors


  •   Li, Shibo (external author)
  •   Hu, Shujun (external author)
  •   Hee, Ay Ching (external author)
  •   Zhao, Yue

Publication Date


  • 2015

Citation


  • Li, S., Hu, S., Hee, A. & Zhao, Y. (2015). Surface modification of a Ti2AlC soft ceramic by plasma nitriding treatment. Surface and Coatings Technology, 281 164-168.

Scopus Eid


  • 2-s2.0-84947058932

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4826

Number Of Pages


  • 4

Start Page


  • 164

End Page


  • 168

Volume


  • 281