Isahani ya corundum mullite ni iki?

Isahani ya sinteri nigikoresho gikoreshwa mugutwara no gutwara urusoro rwa ceramic rwarashwe mumatara yubutaka.Ikoreshwa cyane mu itanura rya ceramique nk'itwara mu gutwara, kubika ubushyuhe no gutanga ububumbyi bwatwitswe.Binyuze muri yo, irashobora kunoza umuvuduko wo gutwara ubushyuhe bwa plaque ya sinteur, bigatuma ibicuruzwa byacumura bishyuha neza, bigabanya neza gukoresha ingufu kandi byihutisha umuriro, kuzamura umusaruro, kuburyo itanura rimwe ryarashe ibicuruzwa bitandukanye bitagira ibara nibindi byiza.

Ibikoresho bya Corundum mullite bifite imbaraga zo guhangana nubushyuhe bwinshi nubushyuhe bwo hejuru, hamwe nubushakashatsi bwiza bwimiti kandi birwanya kwambara.Kubwibyo, irashobora gukoreshwa inshuro nyinshi mubushyuhe bwo hejuru, cyane cyane kubintu bya magnetiki byacumuye, capacitori ceramic hamwe na ceramics.

Ibicuruzwa byo gucumura nibicuruzwa byacumuye.Buri cyiciro cya plaque yongeyeho uburemere bwibicuruzwa bingana na 1kg, muri rusange l0 layer, bityo isahani yo gucumura irashobora kwihanganira umuvuduko ntarengwa wibiro icumi.Muri icyo gihe, kwihanganira imbaraga iyo wimuka hamwe no guterana ibicuruzwa no gupakurura ibicuruzwa, ariko nanone ibihe byinshi bikonje kandi bishyushye, kubwibyo, gukoresha ibidukikije birakabije.

Utarinze gusuzuma imikoranire yibintu bitatu, ifu ya alumina, kaolin hamwe nubushyuhe bwo kubara byose bigira ingaruka kumyuka yumuriro no kunyerera.Kurwanya ubushyuhe bwumuriro byiyongera hiyongereyeho ifu ya alumina, kandi bigabanuka hamwe no kwiyongera kwubushyuhe bwo kurasa.Iyo ibinini bya kaolin ari 8%, kurwanya ubushyuhe bwumuriro nibyo hasi cyane, bigakurikirwa na kaolin ya 9.5%.Ibikurura bigabanuka hiyongereyeho ifu ya alumina, kandi igikonyo nicyo cyo hasi iyo ibirimo kaolin ari 8%.Ikibumbano ni kinini kuri 1580 ℃.Kugirango harebwe uburyo bwo guhangana nubushyuhe bwumuriro hamwe nubushakashatsi bwibikoresho, ibisubizo byiza biboneka mugihe ibirimo alumina ari 26%, kaolin ni 6.5% naho ubushyuhe bwo kubara ni 1580 ℃.

Hariho intera runaka hagati ya corundum-mullite ibice na matrix.Hariho uduce tumwe na tumwe dukikije ibice, biterwa no kudahuza kwa coefficient yo kwagura ubushyuhe hamwe na moderi ya elastike hagati ya selile na matrix, bikavamo microcrack mubicuruzwa.Iyo kwaguka coefficente yuduce na matrix bidahuye, igiteranyo na matrix biroroshye gutandukana iyo bishyushye cyangwa bikonje.Icyuho cyakozwe hagati yabo, bigatuma habaho microcrack.Kubaho kwa micro-crack bizatera kwangirika kwimiterere yibikoresho, ariko mugihe ibikoresho byatewe nubushyuhe.Mu cyuho kiri hagati ya matrix na matrix, irashobora kugira uruhare mukarere ka buffer, gashobora gukuramo imihangayiko imwe kandi ikirinda kwibanda kumutwe.Muri icyo gihe, ubushyuhe bwumuriro muri matrix buzahagarara ku cyuho kiri hagati yuduce na matrix, bishobora gukumira ikwirakwizwa.Rero, ubushyuhe bwumuriro bwibikoresho byahinduwe neza.