Al2O3 nanopowders mai siffar alpha Alumina don silicone mai ɗaukar zafi

Saboda kyakkyawan danko, sassauci, kyakkyawan aiki na matsawa da kyakkyawan yanayin zafi, ana amfani da gel na silica na thermally a matsayin mai zafi mai zafi don IC substrates na kayan lantarki kamar kayan sadarwa da kwakwalwa.Common inorganic non-metallic thermally conductive insulating. foda fillers sun hada da aluminum nitride, aluminum oxide, zinc oxide, beryllium oxide, silicon oxide, silicon carbide, boron nitride, da dai sauransu.A cikin su, alumina ba kawai yana da kyau insulation Properties, amma kuma ta thermal watsin ba low (al'ada zazzabi thermal watsin). shine 30W / m · K), kuma an yi amfani dashi sosai a cikin samfuran rufi a fagen babban ƙarfin lantarki da na'urorin canza UHV.

Alumina barbashi tare da high thermal watsin dole ne kansu da wani babban mataki na crystallinity da compactness.Alfa-phase alumina yana da tsarin hexagonal, wanda shine mafi girman tsari tsakanin bambance-bambancen alumina daban-daban.Nazarin ya nuna cewa mafi girma da alpha lokaci na alumina foda, lu'ulu'u ne gaba daya lu'ulu'u da kuma mai siffar zobe barbashi, kuma akwai wasu crystal jirage.Lokacin da aka cika a cikin silica gel, wani lamba na layin layi da saman zai bayyana lokacin da barbashi suna cikin hulɗa da barbashi.A tuntuɓi, don haka thermal conductivity na silica gel za a iya ƙwarai inganta.