title: Oxidation Resistance of Materials Based on Ti3AlC2 Nanolaminate at 600 °C in Air.
abstract: The oxidation behavior of Ti3AlC2-based materials had been investigated at 600 °C in static air for 1000 h. It was shown that the intense increase of weight gain per unit surface area for sintered material with porosity of 22 % attributed to oxidation of the outer surface of the specimen and surfaces of pores in the bulk material. The oxidation kinetics of the hot-pressed Ti3AlC2-based material with 1 % porosity remarkably increased for the first 15 h and then slowly decreased. The weight gain per unit surface area for this material was 1.0 mg/cm(2) after exposition for 1000 h. The intense initial oxidation of Ti3AlC2-based materials can be eliminated by pre-oxidation treatment at 1200 °C in air for 2 h. As a result, the weight gain per unit surface area for the pre-oxidized material did not exceed 0.11 mg/cm(2) after 1000 h of exposition at 600 °C in air. It was demonstrated that the oxidation resistance of Ti3AlC2-based materials can be significantly improved by niobium addition.
authors: H. V. Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine. ivasyshyn@ipm.lviv.ua.
authors: Andrij
authors: A
authors: Ivasyshyn
authors: H. V. Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine.
authors: Orest
authors: O
authors: Ostash
authors: V. N. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Avtozavodskaya Str., 2, Kiev, 04074, Ukraine.
authors: Tatiana
authors: T
authors: Prikhna
authors: H. V. Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine.
authors: Viktoriya
authors: V
authors: Podhurska
authors: V. N. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Avtozavodskaya Str., 2, Kiev, 04074, Ukraine.
authors: Tatiana
authors: T
authors: Basyuk
keywords: MAX phase; Microstructure; Nanolaminates; Oxidation behavior; Ti3AlC2