Izinto zodongwe ze-Aluminazizixhobo zeseramikhi ezisebenza kakuhle kakhulu ezenziwe nge-aluminium oxide. Zihlala zenziwe ngeenkqubo zokusila ezisebenzisa ubushushu obuphezulu. Ngokuxhomekeke kumxholo we-alumina, zahlulwe ngokwamanqanaba okucoceka okuphantsi (75%-85% Al₂O₃), ukucoceka okuphakathi (96% Al₂O₃), kunye nokucoceka okuphezulu (≥99% Al₂O₃). Ezi zinto zibonakaliswa yisakhiwo esincinci kunye neempawu zeekhemikhali ezizinzileyo, zibonisa amandla abalaseleyo oomatshini, ukumelana nobushushu obuphezulu, kunye nokufakelwa kombane. Zisetyenziswa kakhulu njengezixhobo ezisisiseko kwi-elektroniki, kwiinkqubo zamandla, kwi-aerospace, nakwamanye amashishini aphucukileyo.
Iingenelo ze-Alumina Ceramic Substrates:
Ukufakwa kombane okungaqhelekanga
Ngenxa yokumelana okuphezulu (>10¹⁴ Ω·cm) kunye ne-dielectric constant ephantsi (8-10), ii-alumina ceramics ziyawahlula ngempumelelo amaza ombane, zithintela ukunqongophala kwesekethe kwiindawo ezinamaza aphezulu okanye ezine-voltage ephezulu.
Ukuqhuba okuphezulu kobushushu
Iisubstrates ezinomxholo we-alumina oyi-96% zibonelela ngokuhanjiswa kobushushu obuyi-24-28 W/(m·K), okuvumela ukusasazwa kobushushu okusebenzayo kwizixhobo ze-elektroniki ukuthintela ubushushu obugqithisileyo nokwandisa ubomi besixhobo.
Amandla Oomatshini Aphezulu
Amandla okugoba angama-300-400 MPa, kunye nobunzima obuphezulu (ubulukhuni beMohs 9) kunye nokumelana nokuguguleka, kuqinisekisa ukuqina kwiimeko zokusebenza ezinzima.
Uzinzo oluqinileyo lweekhemikhali
Zimelana nee-asidi, ii-alkali, i-oxidation, kunye nokufuma, ii-substrates ze-alumina zigcina uzinzo lokusebenza nokuba kumaqondo obushushu aphezulu (ukuya kuthi ga kwi-1600°C) okanye kwiindawo ezirhabaxa.
Ukuvelisa ngokuchanekileyo
Umatshini wokulungisa ngokuchanekileyo uvumela ukuba umphezulu ube bushelelezi kwinqanaba le-micron, uhlangabezane neemfuno ezingqongqo zobukhulu bezicelo ezifana nokupakishwa kwe-semiconductor.
Ixesha lokuthumela: Novemba-13-2025