Abstract
Thermal stability, vapor pressure, enthalpy of sublimation and activation energy of tetrakis(trimethylsilyl)silane (TMSS) were investigated by non-isothermal and isothermal thermogravimetric (TG) analysis, which revealed good thermal stability, high volatility with a nil residue. The temperature dependence of vapor pressure measured by using a horizontal dual arm single furnace thermo-analyzer as a transpiration apparatus gave a value of 51.3 ± 1.9 kJ mol −1 for the enthalpy of sublimation ( Δ sub H°) for TMSS in the temperature range of 315.93–416.49 K. The non-isothermal sublimation kinetic reaction mechanism predicted by the Coats–Redfern (CR) model-fitting analysis was 2D diffusion (D2-Valensi equation) and phase boundary (contracting area) controlled and also it was confirmed from the full width of DTG peaks (shape method) suggested by Dollimore. The demonstration of SiC thin film deposition was carried out using plasma-assisted liquid injection chemical vapor deposition (PA-LICVD) and films were analyzed using SEM/EDX techniques.
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