Napredna pretraga

Pregled bibliografske jedinice broj: 773465

Thermal stability of Al-Mo thin film alloys


Ivkov, Jovica; Salamon, Krešimir; Radić, Nikola; Sorić, Marija
Thermal stability of Al-Mo thin film alloys // Journal of alloys and compounds, 646 (2015), 1109-1115 doi:10.1016/j.jallcom.2015.06.022 (međunarodna recenzija, članak, znanstveni)


Naslov
Thermal stability of Al-Mo thin film alloys

Autori
Ivkov, Jovica ; Salamon, Krešimir ; Radić, Nikola ; Sorić, Marija

Izvornik
Journal of alloys and compounds (0925-8388) 646 (2015); 1109-1115

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Thin films; Magnetron sputtering; Amorphous alloys; Al-Mo; Electrical resistivity; X-ray diffraction; Crystallization

Sažetak
Thin AlxMo100x films (40  x  90 with x in steps of 5 at % Al) were prepared by magnetron codeposition onto alumina, glass, and saphire substrates at room temperature. The film thickness was about 400 nm, and they were amorphous for 45  x  85. The films' structural changes upon heating were investigated by measurement of the electrical resistivity variation with temperature, r(T), during the isochronal heating. Thus obtained results were complemented, and conclusions confirmed, by GIXRD analysis for selected heating temperatures. The dynamical temperatures of crystallization, Tx, were determined from the sharp increase of the derivative of r with respect to temperature. No systematic dependence of Tx on film substrate has been observed. Except for the Al85Mo15 film, the r of the amorphous films increase on the crystallization. The temperature of crystallization exhibits maximum around 530 C for alloy compositions with x ¼ 55 and 60. Electrical resistivity of both amorphous and crystallized films show a strong dependence on alloy composition, with a maximum for Al75Mo25 alloy. The resistivity of Al75Mo25 film is very large and amounts to 1000 mU cm and 3000 mU cm in amorphous and crystallized film, respectively, with the large negative temperature coefficient of 10  104 K1 and 14  104 K1, respectively. Although the crystallization temperature observed for the examined amorphous AleMo alloys is not very high, it might allow to exploit excellent corrosion properties of such films at some elevated temperatures.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Institut za fiziku, Zagreb,
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati