Naslov
THE CRYSTALLISATION OF QUASICRYSTALS IN Ti-BASED SYSTEMS

Autori
Rajić Linarić, Maša ; McGuiness, Paul ; Kocijan, Andraž ; Tomašić, Nenad ; Kobe, Spomenka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Program and book of abstract / Jenko, Monika - Ljubljana : Institut za kovinske materiale in Tehnologie, 2005, 119-119

Skup
13th Conferenca o materialih in tehnologijah

Mjesto i datum
Portorož, Slovenija, 10.10.2005. - 12.10.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CRYSTALLISATION; QUASICRYSTALS; Ti-BASED SYSTEMS

Sažetak
The crystallisation of Ti45Zr38Ni17 and Ti40Hf40Ni20 systems was investigated by differential scanning calorimetry (DSC) and X-ray diffraction (XRD) analysis. Commercially pure elemental powders were used as the starting materials in this study. Powder mixtures were mechanically alloyed for different times. After this the prepared mixtures were heat treated in argon with different heating rates with the temperature ranging from room temperature up to 700º C. The crystallisation temperature and the crystallised phases depended on the system composition and the heat-treatment temperature. The addition of Zr or Hf to the Ti/Ni based system results in changes to the structural and thermal properties. The crystallised phases were identified by XRD analysis, while the thermal properties were determined by DSC. The kinetic parameter – activation energy – for all the measured systems was obtained from the DSC data by applying Kissinger΄ s non-isothermal model.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA