Ihe ọhụrụ SiC - Ihe siri ike nke seramiiki dị ka diamond

Silicon carbide na-eme ihe fọrọ nke nta ka ọ bụrụ diamond. Ọ bụghị naanị nke kachasị mfe, kamakwa ihe seramiiki siri ike ma nwee ezigbo conductivity thermal, obere mgbasawanye ọkụ ma na-eguzogide acids na lyes.

Site na seramiiki silicon carbide, akụrụngwa akụrụngwa na-anọgide na-adịgide ruo okpomoku karịrị 1,400°C. Modules dị elu na-eto eto> 400 GPA na-eme ka nkwụsi ike akụkụ dị mma. Ngwongwo ihe ndị a na-eme ka silicon carbide akara aka maka iji dị ka ihe owuwu. Silicon carbide nna ukwu corrosion, abrasion na ozize dị ka nke ọma dị ka ọ na-eguzo n'elu esemokwu. A na-eji ihe ndị ahụ eme ihe na osisi kemịkalụ, igwe igwe, ndị na-ebuwanye ibu na extruders ma ọ bụ dị ka nozzles, dịka ọmụmaatụ.

“Ụdị SSiC (silikoni carbide sintered) na SiSiC (silicon infiltrated silicon carbide) ewepụtala onwe ha. Nke ikpeazụ dabara adaba maka imepụta ihe mejupụtara akụkụ buru ibu.”
Silicon carbide bụ ihe na-egbu egbu ma enwere ike iji ya na ụlọ ọrụ nri. Ngwa ọzọ a na-ahụkarị maka ihe ndị mejupụtara silicon carbide bụ teknụzụ mkpuchi ike na-eji mgbaka esemokwu na akara igwe, dịka ọmụmaatụ na nfuli na sistemu ụgbọala. N'iji ya tụnyere ọla, silicon carbide na-enyere ngwọta dị oke ọnụ ahịa aka na ndụ ngwá ọrụ dị ogologo mgbe ejiri ya na mgbasa ozi na-eme ihe ike, nke dị elu. Silicon carbide ceramics dịkwa mma maka iji ọnọdụ na-achọ ihe na ballistics, mmepụta kemịkalụ, teknụzụ ume, imepụta akwụkwọ yana dị ka akụrụngwa sistemu ọkpọkọ.

Ihe jikọrọ silicon carbide, nke a makwaara dị ka siliconized silicon carbide ma ọ bụ SiSiC, bụ ụdị silicon carbide nke mmeghachi omume kemịkalụ dị n'etiti carbon porous ma ọ bụ graphite nwere silicon a wụrụ awụ. N'ihi akụkụ aka ekpe nke silicon, mmeghachi omume bonded silicon carbide na-akpọkarị siliconized silicon carbide, ma ọ bụ abbreviation SiSiC.

Ọ bụrụ na a na-emepụta silicon carbide dị ọcha site na nsị nke silicon carbide ntụ ntụ, ọ na-enwekarị akara kemịkalụ a na-akpọ sintering aids, nke a na-agbakwunye iji kwado usoro nkwụsị ahụ site na ikwe ka okpomọkụ dị ala. A na-akpọkarị ụdị silicon carbide a dị ka silicon carbide sintered, ma ọ bụ debiri SSiC.

A na-enweta ntụ ntụ silicon carbide site na silicon carbide emepụtara dị ka akọwara n'isiokwu silicon carbide.

20-1 碳化硅异形件 2

(Esitere na: CERAMTEC)[email na-echebe]

 


Oge nzipu: Nov-12-2018
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