Investigations of transient phase formation in Ti/Si thin film reaction

作者: O. Chaix-Pluchery , B. Chenevier , I. Matko , J. P. Sénateur , F. La Via

DOI: 10.1063/1.1759395

关键词: Materials scienceSilicideGrain boundaryThin filmMicrostructureIsothermal processAmorphous solidAnalytical chemistryAnnealing (metallurgy)MetallurgyGrain boundary diffusion coefficient

摘要: The analysis of temperature and time dependence the Ti film microstructure evolution in Ti/Si thin films indicates Si diffusion occurs before any crystal phase is formed. Diffusion first grain boundaries then, within grains. Ti5Si3 has been identified as a transient forming C49 TiSi2 grows. only grows isothermal runs narrow range annealing temperatures (412–434 °C our study). It not observed which forms. mechanisms formation transformation into have found to be limited. Phases alloyed Ti, amorphous silicide, Ti5Si3, simultaneously observed. lifetime volume fraction initial metal layer transformed are naturally tightly dependent.

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