Peb theem sib txawv ntawm sintering ntawm alumina ceramics yog dab tsi? Sintering yog ib qho txheej txheem tseem ceeb ntawm tag nrho alumina ceramics hauv kev tsim khoom, thiab ntau qhov kev hloov pauv sib txawv yuav tshwm sim ua ntej thiab tom qab sintering, Xiaobian hauv qab no yuav tsom mus rau peb theem sib txawv ntawm alumina ceramics:
Ua ntej, ua ntej sintering, qhov kev tswj kub ntawm theem no tseem ceeb dua, vim tias qhov kub tseem nce ntxiv, lub embryo kuj yuav ntsws, tab sis lub zog thiab qhov ceev yuav tsis hloov ntau, yog tias nws yog microscopic, cov noob yuav tsis hloov pauv loj, tab sis lub embryo ntawm theem no yooj yim rau kev tawg, Feem ntau vim tias cov binder thiab dej raug tso tawm tag nrho, yog li peb yuav tsum tau them sai sai rau qhov ceev ntawm qhov kub nce.
Qhov thib ob, thaum lub sijhawm sintering, qhov kub thiab txias yuav hloov pauv me me, lub cev ntawm lub embryo maj mam shrinks, thiab qhov ceev yuav hloov pauv ntau heev. Txawm hais tias tsis muaj kev hloov pauv pom tseeb hauv cov noob me me, tag nrho cov khoom me me yeej tsis sib txuas lawm, thiab tag nrho cov qhov hws yuav me dua thiab me dua. Ib yam li ntawd, vim tias lub cev ntawm lub embryo muaj kev hloov pauv hauv qhov ntim, yog li nws tseem yooj yim tshwm sim deformation thiab tawg.
Qhov thib peb, thaum kawg, tom qab sintering, qhov kub yuav nce siab heev, lub cev thiab qhov ceev ntawm lub embryo yuav hloov pauv loj heev, qhov kev hloov pauv ntawm cov noob hauv micro kuj pom tseeb dua, cov qhov hws yuav me dua, tsim ntau lub qhov hws cais, tab sis yuav muaj qee qhov qhov hws uas nyob ncaj qha rau ntawm cov noob.
Lub sijhawm tshaj tawm: Cuaj hlis-18-2023