Matla a phahameng a mocheso oa li-ceramics

Deqing Yehui Ceramic Parts Manufacture Co., Ltd. e sebakeng sa Deqing, Huzhou City, Profinseng ea Zhejiang, China.E bohōle ba lik'hilomithara tse 200 ho tloha boema-kepe ba Shanghai, ka lilemo tse 10 re sebetsa ka thata ho etsa lihlahisoa tsa Zirconia Ceramics le likarolo tsa Alumina Ceramic.

Ho hanyetsa mocheso o phahameng oa lirafshoa tsa moralo hangata ho molemo, hangata ka tlase ho 800 ° C, 'me mocheso o na le phello e fokolang matla a thepa ea ceramic.Ha ho bapisoa le li-ceramics tsa covalent bond, li-ceramics tse kopantsoeng le ion li na le khanyetso e phahameng ea mocheso.Ka kakaretso, maemong a tlase a mocheso, ho hloleha ha fracture ea li-ceramics ke boits'oaro bo brittle, ke hore, ha ho na deformation ea polasetiki, 'me khatello ea ho qetela e nyane haholo,' me e tsotella haholo liphoso tse nyane.Leha ho le joalo, sebakeng sa mocheso o phahameng, li-ceramics li ka hlahisa deformation e nyane ea polasetiki pele e robeha, khatello ea ho qetela e eketseha haholo, 'me ho na le boits'oaro bo fokolang ba elastoplastic.Ho feta moo, kutloisiso ea matla ho likoli e fapana haholo.Moeli o pakeng tsa sebaka sa mocheso o tlase le sebaka se phahameng sa mocheso se hlahisang phetoho ea thepa ena hangata e bitsoa mocheso oa phetoho ea brittle ductility.Thempereichara ea phetoho ea brittle ductility e amana haufi-ufi le sebopeho sa lik'hemik'hale tsa ceramic le mofuta oa valence bond.E loketseng, empa hape e amana le microstructure ea ceramic, sebopeho sa moeli oa lijo-thollo, haholo-holo sebopeho le litaba tsa karolo ea khalase ea moeli oa lijo-thollo.Ka mocheso o phahameng, ka holim'a mocheso oa phetoho ea brittle ductility, matla a lisebelisoa tse ngata tsa ceramic a tla fokotseha.Bakeng sa li-ceramics tsa ion-bonded MgO, mocheso oa phetoho ea brittle ductility o tlase haholo, 'me matla a fokotseha ka ho eketseha ha mocheso hoo e batlang e le mocheso oa kamore.Mocheso oa phetoho ea brittle ductility ea Al2O3 e ka ba 900 ° C, mocheso oa phetoho ea brittle ductility ea Si3N4 e chesang e chesang e ka bang 1200 ° C, 'me li-ceramics tsa SiC hangata li ka mamella mocheso o phahameng oa 1600 ° C.