Dab tsi yog peb qhov sib txawv sintering theem ntawm alumina ceramics? Sintering yog cov txheej txheem tseem ceeb ntawm tag nrho cov alumina ceramics hauv kev tsim khoom, thiab ntau yam kev hloov pauv yuav tshwm sim ua ntej thiab tom qab sintering, Xiaobian hauv qab no yuav tsom mus rau peb theem sib txawv sintering ntawm alumina ceramics:
Ua ntej, ua ntej sintering, kev tswj qhov kub thiab txias ntawm theem no yog qhov tseem ceeb dua, vim tias qhov kub nce ntxiv, lub embryo kuj yuav txo qis, tab sis lub zog thiab qhov ntom yuav tsis hloov ntau, yog tias nws yog microscopic, cov nplej yuav tsis hloov loj. , tab sis lub embryo nyob rau theem no yog ntau nquag mus rau tawg phenomenon, Feem ntau vim hais tias cov binder thiab dej yog kiag li tso tawm, yog li peb yuav tsum xyuam xim rau qhov ceev ntawm kub nce.
Qhov thib ob, nyob rau hauv cov txheej txheem sintering, qhov kub thiab txias yuav hloov me me amplitude, lub embryo lub cev maj mam shrinks, thiab qhov ceev yuav hloov heev. Txawm hais tias tsis muaj qhov pom tseeb hloov pauv hauv microscopic grain, tag nrho cov khoom yog qhov pib tsis muaj kev sib raug zoo, thiab tag nrho cov pores yuav ua me thiab me. Ib yam li ntawd, vim hais tias lub cev embryo muaj qhov hloov pauv hauv ntim, Yog li nws tseem yog qhov yooj yim kom tshwm sim deformation thiab tawg tshwm sim.
Thib peb, thaum kawg, tom qab sintering, qhov kub thiab txias yuav nce siab, lub embryo lub cev thiab qhov ntom yuav raug hloov pauv loj, kev hloov ntawm cov nplej hauv micro kuj pom tseeb dua, cov pores yuav me dua, tsim ntau cov pores cais, tab sis yuav muaj qee qhov pores ncaj qha residual ntawm cov nplej.
Post lub sij hawm: Sep-18-2023