Pamsika, timadziwa bwino zinthu zapadera: Silicon Carbide, Alumina, zirconia, silicon nitride. Kufunika kokwanira pamsika, werengani mwayi wa mitundu ingapo ya zinthuzo.
Silicon Carbide ali ndi maubwino a mtengo wotsika mtengo, kukana bwino kukokoloka bwino, nyonga yayikulu, zovuta zazikulu ndizosavuta kutengera, ndizovuta kuzichotsa. Alumina ndiye wotsika mtengo kwambiri, ndipo kukonzekera zinthu zopangira ufa kumakhala kokhwima kwambiri, pomwe zircon nitrous nitrous ndi zovuta zomwe zili ndi zovuta pankhaniyi. Silicon nitride, makamaka, ndiye okwera mtengo kwambiri.
Pakugwirira ntchito, ngakhale mphamvu, mphamvu ndi makina ena a silicon nitride ndi zirconia ndizabwino kwambiri kuposa alumuna, zikuwoneka kuti magwiridwe antchito ndi oyenera, koma pamakhala mavuto ambiri. Choyamba kuchokera ku zirconia, zimakhala ndi zovuta kwambiri, chifukwa chake chimakhala chokhazikika, koma kulimba kwake kumakhala kovuta, sikuyenera kugwiritsidwa ntchito kutentha kwambiri kwa oxidation, koma kuyenera kugwiritsidwa ntchito kutentha kwambiri kwa nthawi yayitali. Ndipo silicon nitride, ndi gawo lodziwika bwino m'zaka makumi awiri zapitazi, zoseweretsa zoseweretsa zokhala ndi mphamvu zambiri ndi zabwino, koma kugwiritsa ntchito kutentha kumakhala kochepa kuposa ena awiriwo; Kukonzekera njira ya silicon nitride kumakhalanso kovuta kwambiri kuposa alumun, ngakhale kuti kugwiritsa ntchito gawo la silicon nitride kuli bwino kuposa zirconia, koma kufanizira konse sikuli bwino ngati alumina.
Kugwiritsa ntchito kotsika mtengo, kokhazikika, kusiyanasiyana kwa zinthu za alumu Ceremin kunagwiritsidwa ntchito poyambira, ndipo wakhala akugwiritsidwa ntchito kwanthawi yapaderayi.
Post Nthawi: Jan-22-2022