SYNTHESIS AND CHARACTERIZATION OF CoTi(1-X)Mn(X)O3 AS A RADAR ABSORBING MATERIAL

Abstract

<div><p class="Els-history-head">To avoid detection from Radio Detection and Ranging (Radar), one of the efforts is to use Radar absorbing material. One of the Radar wave absorbing materials is Perovskite CoTiO<sub>3</sub>. This Paper investigated the ability of CoTi<sub>(1-x)</sub>Mn<sub>(x)</sub>O<sub>3 </sub>to absorb the Radar wave. CoTi<sub>(1-x)</sub>Mn<sub>(x)</sub>O<sub>3</sub> with variations x = 0, 0.01, 0.02, and 0.03 have been successfully synthesized using the mechanical milling method. The XRD pattern shows that the sample formed was single phase CoTiO<sub>3</sub>. Surface morphology resulting from measurements with SEM shows homogeneous particles and an average size of 200 nm. The results of measurements with VNA at X-band frequency (8.20 GHz - 12.4 GHz) show that the absorption ability of electromagnetic waves from CoTiO<sub>3</sub> increases with the increase in doping from Mn<sup>4+</sup>. Maximum results obtained at the composition x=0.03 (CoTi<sub>0.97</sub>Mn<sub>0.03</sub>O<sub>3</sub>) with a reflection loss (RL) value is -14.56 dB (%Abs is 81.3%) at a frequency of 9.96 GHz. This result proves that CoTi<sub>(1-x)</sub>Mn<sub>(x)</sub>O<sub>3</sub> can be used as a Radar absorbing material at X-band frequency.</p></div>