“…27 Modern ground-based and ship-based radomes are manufactured using composite materials such as fiberglass, quartz, and aramid fibers held together with polyester, epoxy, and other resins. Materials for developing ceramic radomes include fused silica (SiO 2 ), 28 silicon nitride-barium aluminum silicate composites (Si 3 N 4 / BAS), 29,30 aluminum phosphate-mullite composites (AlPO 4 /3Al 2 O 3 .2SiO 2 ), 31 silica-aluminum nitride composites (SiO 2 -AlN), 32 silica fiber reinforced silicaboron nitride composites (SiO 2f /SiO 2 -BN), 33 aluminum borate whisker/aluminum phosphates composites (9Al₂O₃.2B₂O₃/AlPO 4 ), 34 liquid-phase silicon nitride, 35 Si 2 N 2 O composites, 36 reaction-bonded silicon nitride, 37 b-Si 4 Al 2 O 2 N 4 , 38 b-Si 4 Al 2 O 2 N 4 -SiO 2 , 39 b-SiAlON, 40,41 few of these materials with efficient properties with considerable importance are shown in Table I.…”