The objective of this study is to determine the effect of milling on the X-Band microwave properties of Ba,, ,TiO, / MgO {wt% MgO= 0 to 60 wt%} composites. At low frequency, the effect of the reduction of the overall particle size of the materials from attritor milling is dependent on the additive oxide content; for samples with oxide content > 5.0 wt%, the dielectric constant, and tunability (%) are decreased. Whereas, milled Ba,,Sr,,TiO, / MgO"' (wt% MgO= 0 to 1 wt%} composites exhibit low loss tangents, higher tunabilities, and higher dielectric constants than unmilled samples. The present study is focused on the effect of milling on the diekectric properties of Ba, ,Sr,,TiO, / MgO composites at microwave frequency. The samples were evaluated in a 10 GHz resonator cavity. Additionally, the effect of barium content and MgO content on the 10 GHz dielectric properties of Ba$r,.,TiO, (x = 0.45, 0.50, 0.55, 0.60) / MgO (MgO = 1 -60 Wt%) are investigated. These results are correlated with relevant material characterization techniques including FT-Raman studies.
342/[862]J. SYNOWCZYNSKI r t ul.