• 专利标题:   Graphene carbide/silicon carbide composite material used in electromagnetic shielding device, comprises multiple graphene of silicon carbide crystal grains uniformly distributed to form thin film.
  • 专利号:   CN115928043-A
  • 发明人:   LI Z, ZHANG L, TU R, XU Q, ZHANG S
  • 专利权人:   GUANGDONG HUICHENG VACUUM TECHNOLOGY CO, UNIV WUHAN TECHNOLOGY
  • 国际专利分类:   C01B032/186, C01B032/963, C01B032/977, C23C016/26, C23C016/30, C23C016/32, C23C016/48, C23C016/52, H05K009/00
  • 专利详细信息:   CN115928043-A 07 Apr 2023 C23C-016/30 202341 Chinese
  • 申请详细信息:   CN115928043-A CN11320430 26 Oct 2022
  • 优先权号:   CN11320430

▎ 摘  要

NOVELTY - A graphene/silicon carbide composite material comprises graphene/silicon carbide composite material is obtained by the combination of multiple layers of graphene and silicon carbide grains. The silicon carbide grains are uniformly distributed to form a thin film, while the multiple layers of graphene densely fill the space between the surface of the silicon carbide grains and the grain boundaries. This results in the formation of a large quantity of nano-scale graphene/silicon carbide hetero structures. USE - Graphene carbide/silicon carbide composite material for use in an electromagnetic shielding device of a portable and wearable intelligent device. ADVANTAGE - The graphene/silicon carbide composite material provided in this invention exhibits high electrical conductivity. Additionally, it possesses excellent electromagnetic shielding performance and high-temperature oxidation resistance. Specifically, at a thickness of 0.45 mm, it achieves an electromagnetic shielding effectiveness of 74.2 dB. Its thermal resistance index (THRI) is 330.13℃, ensuring the stability of the composite material in harsh environments. These characteristics make the graphene/silicon carbide composite material highly promising for applications in electromagnetic shielding devices and other related fields. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of the graphene/silicon carbide composite material.