Kutentha kwakukulu kwazitsulo za ceramic

Deqing Yehui Ceramic Parts Manufacture Co., Ltd. ili ku Deqing County, Huzhou City, Province la Zhejiang, China.Ndi pafupi 200km kutali doko Shanghai, ife apadera kupanga Zirconia Ceramics ndi Alumina Ceramic mbali ndi zaka 10.

Kutentha kwapamwamba kwa zoumba zadothi nthawi zambiri kumakhala bwino, nthawi zambiri kumakhala pansi pa 800 ° C, ndipo kutentha sikukhudza mphamvu ya zida za ceramic.Poyerekeza ndi zomangira zomangira zadothi, zomangira zomata ion zimakhala ndi kukana kutentha kwambiri.Nthawi zambiri, m'malo otsika kutentha, kulephera kwa fracture kwa ceramics ndi khalidwe losasunthika, ndiko kuti, palibe mapindikidwe a pulasitiki, ndipo kupsyinjika kwakukulu ndi kochepa kwambiri, ndipo kumakhudzidwa kwambiri ndi zolakwika zazing'ono.Komabe, m'malo otentha kwambiri, ma ceramics amatha kutulutsa pulasitiki yaying'ono isanaphwanyike, vuto lalikulu limachulukirachulukira, ndipo pali kachitidwe kakang'ono ka elastoplastic.Komanso, tilinazo mphamvu zofooka zimasiyanasiyana kwambiri.Malire pakati pa malo otentha otsika ndi malo otentha kwambiri omwe amapangitsa kusintha kwa zinthu izi nthawi zambiri amatchedwa kutentha kwa brittle ductility transition.Kutentha kwakusintha kwa brittle ductility kumagwirizana kwambiri ndi kapangidwe kake ka ceramic ndi mtundu wa valence bond.Zoyenera, komanso zokhudzana ndi kachulukidwe kakang'ono ka ceramic, kapangidwe ka gawo lamalire ambewu, makamaka kapangidwe kake ndi zomwe zili mugawo lagalasi.Pa kutentha kwakukulu, pamwamba pa kutentha kwa brittle ductility kusintha, mphamvu za zipangizo zambiri za ceramic zidzachepa.Kwa zitsulo za MgO zomangidwa ndi ion, kutentha kwa brittle ductility transition ndi kochepa kwambiri, ndipo mphamvu imachepa ndi kuwonjezeka kwa kutentha pafupifupi kutentha kwa chipinda.Kutentha kwa brittle ductility kusintha kwa Al2O3 kuli pafupifupi 900 ° C, kutentha kwa brittle ductility transition of hot-press sintered Si3N4 ndi pafupifupi 1200 ° C, ndipo SiC ceramics nthawi zambiri imatha kupirira kutentha kwambiri kwa 1600 ° C.