Fabrication and electromagnetic wave absorption property of quartz ceramics with a gradient distribution of BaTiO3

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

“…The radome materials include quartz ceramics, 3,4 nitride ceramics, 5,6 and aluminum phosphate matrix composite materials. 7,8 With the presence of free hydroxyl groups and voids on the surface of inorganic radome materials, the surface of the radome could exhibit hydrophilicity.…”

“…The radome materials include quartz ceramics, , nitride ceramics, , and aluminum phosphate matrix composite materials. , With the presence of free hydroxyl groups and voids on the surface of inorganic radome materials, the surface of the radome could exhibit hydrophilicity. Numerous studies have shown that rainwater has a significant impact on the transmission performance of the antenna signal. − When rainwater causes water to accumulate on the surface of antennas or radomes, even a very thin film of water can greatly increase the transmission loss and noise of rainwater.…”

BaTiO3@C Core–Shell Nanoparticle/Paraffin Composites for Wide-Band Microwave Absorption

“…In practical applications, the features of broad EAB, stability, and lightweight are the key considerations. Figure gives the comparison of the thickness and the EAB of the BaTiO 3 -based absorbers in recently reported papers. ,,− As can be seen, the BaTiO 3 @C/paraffin composite in this work exhibited a broad EAB of 6 GHz at a thickness of only 1.8 mm, which is the highest among all of the BaTiO 3 -based absorbing materials listed. Generally, the absorption properties of the EM wave of a material depend on both the impedance matching and attenuation characteristics that are closely related to its microstructure and the EM properties. − Figure illustrates the microwave dissipation process of the BaTiO 3 @C/paraffin composites in the present work.…”

“…Effective absorption bandwidth (EAB) versus the thicknesses for typical BaTiO 3 -based microwave absorbing materials reported in recent papers. ,,− …”

Influence of fabric structures and temperature on the mechanical properties of quartz braids

“…Quartz fiber is widely utilized in various industries, 1,2 including space shuttle thermal insulation, electronic instruments, and refractory applications, due to its exceptional strength and stability. [3][4][5][6] However, in order to keep up with the rapid advancements in modern manufacturing technology and space exploration, there is a growing demand for quartz fabrics with enhanced properties. [7][8][9] including lighter, softer, stronger stability and better impact resistance.…”