Abstract: Barium Hexa Ferrite (BHF) (BaFe₁₂O₁₉) and its substituted derivatives have been considered as the most potential magnetic candidates with considerable chemical stability and physiochemical characteristics. (BHF) with x ferrite ions substituted by Titanium (Ti-doped BTHF) (BaTi_xFe_12-xO₁₉) (x=1 & x=3) were prepared from ferric oxide Fe₂O₃, barium oxide BaO and Titanium oxide TiO₂ of purity greater than 98%. The materials were mixed with de-ionized water and then dried at 1100 ^oC and at 1200^oC overnight. For the formation of BaFe₁₂O₁₉ phas[MA1] e, the mixture was annealed at a rate of 10^oC/min in static air atmosphere until reaching (1200^oC) and then maintained for 10 hours. Structural properties of these samples were measured by using XRD and SEM, while magnetic properties were measured by using vibrating sample magnetometer VSM device. Magnetic and structural characteristics are investigated after preserving (Ti doped-BHF) samples at room temperature and ambient conditions for twelve years. The samples are characterized using the same previous techniques to find out the possible effect of long period storage on their properties. The results showed that the storage process has little effect on these properties where the granular size increased due to increased oxidation. XRD tests also showed the absence of Ti at low ratios due to increased oxidation of ferrite. VSM results showed increased magnetic properties after storage due to increased iron oxide.

[MA1]BHF or BTHF ?