“…, density, structure, composition). , Therefore, given a uniform (homogeneous) chemical composition of our amorphous coatings, a single crystalline phase should be expected to arise during the phase transition; namely, the phase whose stoichiometry is closest to the overall composition of the amorphous layer. , Nonetheless, previous examinations have revealed that a significant co-formation of Al 6 Ti 2 O 13 and Al 16 Ti 5 O 34 also happens even when the Al–Ti ratio in the coating is close-to-ideal (1.93) with respect to the Al 2 TiO 5 ’s stoichiometry ( i.e. , 2–1). , This infers a possibility for compositional fluctuations to be the main reason for the co-formation of Al 6 Ti 2 O 13 and Al 16 Ti 5 O 34 . Indeed, such compositional variations and elemental enrichments are a typical deviation from CNT and have frequently been reported in the crystallization of many glass-forming materials. − …”