In-situ Al1050-5wt.% TiB2 composite was prepared by flux assisted synthesis (FAS) technique using potassium hexaflurotitanate (K2TiF6) and potassium tetrafluroborate (KBF4) salts at different melt holding temperatures of 750ºC to 900ºC for a constant holding time of 60 minutes. The decomposition of salts with respect to temperature was determined by DTA analysis. The influence of holding temperature on porosity, microstructure and particle morphology on the prepared composite was investigated. The composite prepared at 800ºC, showed an increase the particles average size. The porosity present in prepared composite was found to increase with higher melt holding temperature. The results confirmed that at higher holding temperatures a complete reaction between the halide salts and the aluminium occurred, leading to the nucleation and growth of only TiB2 particles in the final alloy composite. Moreover, at higher temperatures the particles which were formed in the melt were dispersed more homogenously in the matrix of the processed composite.