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Study examines low-permittivity dielectric ceramics for microwave/millimeter-wave communication   sourcephys.orgMicrowave dielectric ceramics are the cornerstone of wireless communication devices, widely utilized in mobile communications, satellite radar, GPS, Bluetooth, and WLAN applications. Components made from these ceramic materials, such as filters, resonators, and dielectric antennas, are extensively used in wireless communication networks.As wireless communication frequencies extend into higher bands, signal delay issues become increasingly prominent. Low dielectric constants...
Release time: 2024 - 05 - 20
Towards novel promising perovskite-type ferroelectric materials: High-pressure synthesis of rubidium niobate   source: Shibaura Institute of TechnologyCapacitors are crucial components in electronic devices such as smartphones and computers. They are made of dielectric materials that polarize on the application of the voltage. Currently, barium titanate (BaTiO3) is the most widely used material for capacitors.Barium titanate belongs to the perovskite group of materials, where a titanium ion resides within an oxygen octahedral cage. The material exhibits displacive-type ferroelectric ...
Release time: 2024 - 05 - 17
source:cosmosCombining one of the world’s rarest metals with a comparatively abundant element could help accelerate green hydrogen production, with a Japanese research team developing an enhanced catalyst for industrial electrolysis.Iridium is a vital, but rare catalyst involved in the electrolysis process that produces green hydrogen, effectively by using electricity from a renewable energy source to split water into separate hydrogen and oxygen molecules.Such is its scarcity that only around 3 tonnes are produced annually from a thin layer of the Earth’s crust and other small deposits. It’s ...
Release time: 2024 - 05 - 16
Appia Announces Preliminary Desorption Results and Confirms Ionic Adsorption Clay Rare Earth Mineralization in Brazilsource:finance.yahooToronto, Ontario--(Newsfile Corp. - May 6, 2024) - Appia Rare Earths & Uranium Corp. (CSE: API) (OTCQX: APAAF) (FSE: A0I0) (MUN: A0I0) (BER: A0I0) (the "Company" or "Appia") announced today the confirmation of the presence of Ionic Adsorption Clay (IAC) rare earth elements (REE) at the PCH project. A total of 100 samples were sent to AGS Laboratories in La Serena, Chile and the results consistently indicated that the regolith developed...
Release time: 2024 - 05 - 14
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