Amandla obushushu obuphezulu beekeramics

I-Deqing Yehui Ceramic Parts Manufacture Co., Ltd. ibekwe kwisiphaluka sase-Deqing, kwisiXeko saseHuzhou, kwiPhondo laseZhejiang, eChina.Imalunga ne-200km kude nezibuko laseShanghai, sisebenza ngokukhethekileyo ekwenzeni iZirconia Ceramics kunye neenxalenye zeAlumina Ceramic ngeminyaka eli-10.

Ukumelana nobushushu obuphezulu be-ceramics yesakhiwo ngokuqhelekileyo kungcono, ngokuqhelekileyo ngaphantsi kwe-800 ° C, kwaye ubushushu bunefuthe elincinci kumandla ezinto ze-ceramic.Xa kuthelekiswa neekeramics ezibopheleleke kwibhondi, iiseramics ezibotshwe nge-ion zinokumelana nobushushu obuphantsi.Ngokuqhelekileyo, kuluhlu olusezantsi lobushushu, ukungaphumeleli kokuphuka kweekeramics kukuziphatha okubuhlungu, oko kukuthi, akukho deformation yeplastiki, kwaye i-strain yokugqibela incinci kakhulu, kwaye inomdla kakhulu kwiziphene ezincinci.Nangona kunjalo, kwindawo yobushushu obuphezulu, i-ceramics inokuvelisa i-deformation encinci yeplastiki ngaphambi kokuphuka, ubunzima bokugqibela bunyuswa kakhulu, kwaye kukho inani elincinci lokuziphatha kwe-elastoplastic.Ukongeza, uvakalelo lwamandla kwiziphene luyahluka kakhulu.Umda phakathi kwendawo yobushushu obuphantsi kunye nommandla wobushushu obuphezulu ovelisa olu tshintsho lwepropati yempahla udla ngokubizwa ngokuba yi-brittle ductility transition temperature.Ubushushu benguqu ye-brittle ductility inxulumene ngokusondeleyo nokwakheka kweekhemikhali ze-ceramic kunye nohlobo lwebhondi ye-valence.Efanelekileyo, kodwa inxulumene ne-microstructure ye-ceramic, ukubunjwa kwesigaba somda wengqolowa, ngokukodwa ukubunjwa kunye nomxholo wesigaba seglasi yomda wengqolowa.Kwiqondo lokushisa eliphezulu, ngaphezu kobushushu benguqu ye-brittle ductility, amandla ezinto ezininzi ze-ceramic ziya kuncipha.Kwi-ion-bonded MgO ceramics, i-brittle ductility transition iqondo lokushisa liphantsi kakhulu, kwaye amandla ayancipha ngokunyuka kwamaqondo obushushu phantse ukusuka kwiqondo lokushisa.Ubushushu benguqu ye-brittle ductility ye-Al2O3 imalunga ne-900 ° C, i-brittle ductility transition ye-hot-press sintered Si3N4 imalunga ne-1200 ° C, kwaye ii-ceramics ze-SiC zihlala zimelana nobushushu obuphezulu be-1600 ° C.