Nyocha ọhụrụ nke ụkpụrụ nnabata okpomọkụ nke silicon carbide graphite crucible

1. Ihe onwunwe na nhazi

silicon carbide graphite crucible a nụchara anụcha site na ihe ndị dị ka graphite na silicon carbide site na usoro mgbagwoju anya, na-ejikọta ihe ndị dị mma. Njirimara bụ isi nke graphite gụnyere:

 

Igwe ọkụ eletrik na ọkụ ọkụ: Graphite nwere ezigbo ọkụ eletrik na ọkụ ọkụ, na-enye ya ohere ịnyefe ọkụ ngwa ngwa ma belata ọnwụ ike na gburugburu okpomọkụ dị elu.

Nkwụsi ike kemịkalụ: Graphite ka kwụsiri ike ma na-egbochi mmeghachi omume kemịkalụ n'ọtụtụ mpaghara acidic na alkaline.

Nguzogide okpomọkụ dị elu: Graphite nwere ike idowe iguzosi ike n'ezi ihe ogologo oge na gburugburu okpomọkụ dị elu na-enweghị mgbanwe dị ịrịba ama n'ihi mgbasawanye ọkụ ma ọ bụ nkwekọrịta.

Ihe ndị bụ isi nke silicon carbide gụnyere:

 

Mechanical ike: Silicon carbide nwere nnukwu ike ike na arụ ọrụ, ọ na-eguzogidekwa iyi na mmetụta igwe.

Nguzogide corrosion: Na-egosipụta ezigbo nguzogide corrosion na oke okpomọkụ yana ikuku na-emebi emebi.

Nkwụsi ike nke okpomọkụ: Silicon carbide nwere ike idowe kemịkalụ na ihe anụ ahụ kwụsiri ike na gburugburu oke okpomọkụ.

Nchikota nke ihe abụọ a na-emepụtasilicon carbide graphite crucibles, nke nwere oke okpomọkụ na-eguzogide, ezigbo okpomọkụ conductivity na ezigbo nkwụsi ike nke kemịkal, na-eme ka ha dị mma maka ngwa okpomọkụ dị elu.

 

2. Mmeghachi omume kemịkalụ na usoro endothermic

silicon carbide graphite crucible na-enweta usoro mmeghachi omume kemịkalụ na gburugburu ebe okpomọkụ dị elu, nke na-abụghị nanị na-egosipụta arụmọrụ nke ihe ndị na-emepụta ihe, ma ọ bụkwa isi iyi dị mkpa nke arụmọrụ ọkụ ya. Nnukwu mmeghachi omume kemịkal gụnyere:

 

Mmeghachi omume redox: oxide ígwè na-emeghachi omume na onye na-ebelata ihe (dị ka carbon) na crucible, na-ahapụ nnukwu okpomọkụ. Dịka ọmụmaatụ, ígwè oxide na-emeghachi omume na carbon iji mepụta ígwè na carbon dioxide:

 

Fe2O3 + 3C→2Fe + 3 CO

Okpomọkụ ewepụtara site na mmeghachi omume a na-etinye uche na crucible, na-ebuli okpomọkụ ya n'ozuzu ya.

 

Mmeghachi omume pyrolysis: N'ebe okpomọkụ dị elu, ụfọdụ ihe na-enweta mmeghachi omume ire ere nke na-emepụta obere ụmụ irighiri ihe ma na-ahapụ okpomọkụ. Dịka ọmụmaatụ, calcium carbonate decomposes na oke okpomọkụ iji mepụta calcium oxide na carbon dioxide:

 

CaCO3→CaO + CO2

Mmeghachi omume pyrolysis a na-ewepụtakwa okpomọkụ, bụ nke crucible na-etinye n'ime ya.

 

Mmeghachi omume uzuoku: Uzu mmiri na-emeghachi omume na carbon na oke okpomọkụ iji mepụta hydrogen na carbon monoxide:

 

H2O + C→H2 + CO

A na-ejikwa ikpo ọkụ na-ekpo ọkụ nke mmeghachi omume a wepụtara.

 

Okpomọkụ sitere na mmeghachi omume kemịkalụ ndị a bụ usoro dị mkpa makasilicon carbide graphite crucible iji kpoo ọkụ, na-ekwe ka ọ na-arụ ọrụ nke ọma ma nyefee ike ọkụ n'oge usoro ikpo ọkụ.

 

atọ. Nyocha miri emi nke ụkpụrụ ọrụ

Ụkpụrụ ọrụ nkesilicon carbide graphite crucible ọ bụghị naanị na-adabere na njirimara anụ ahụ nke ihe ahụ, ma na-adaberekwa n'ụzọ dị ukwuu na iji ike ọkụ na-arụ ọrụ nke ọma site na mmeghachi omume kemịkal. Usoro a kapịrị ọnụ bụ nke a:

 

Igwe ọkụ na-ekpo ọkụ: Ebe okpomọkụ dị n'èzí na-ekpo ọkụ ọkụ, na graphite na silicon carbide ihe dị n'ime ya na-amịkọrọ ọkụ ngwa ngwa wee rute nnukwu okpomọkụ.

 

Mmeghachi omume endothermic nke kemịkalụ: N'ebe okpomọkụ dị elu, mmeghachi omume kemịkalụ (dị ka mmeghachi omume redox, mmeghachi omume pyrolysis, mmeghachi omume uzuoku, wdg) na-eme n'ime crucible, na-ahapụ nnukwu ike ọkụ, nke na-etinye ya n'ime ihe ọkụkụ.

 

Thermal conductivity: N'ihi mma thermal conductivity nke graphite, okpomọkụ dị na crucible na-eme ngwa ngwa na ihe dị na crucible, na-eme ka okpomọkụ ya na-ebili ngwa ngwa.

 

Na-aga n'ihu na-ekpo ọkụ: Ka mmeghachi omume kemịkal na-aga n'ihu ma na-ekpo ọkụ n'èzí na-aga n'ihu, crucible nwere ike ịnọgide na-enwe okpomọkụ dị elu ma na-enye ọkụ ọkụ ọkụ ọkụ maka ihe ndị dị na crucible.

 

Nke a na-arụ ọrụ nke ọma okpomọkụ conduction na okpomọkụ ike itinye n'ọrụ usoro ana achi achi na elu arụmọrụ nkesilicon carbide graphite crucible n'okpuru ọnọdụ okpomọkụ dị elu. Usoro a ọ bụghị nanị na-eme ka ọkụ ọkụ na-arụ ọrụ nke ọma na-arụ ọrụ nke ọma, ma na-ebelata ume ike, na-eme ka ọ rụọ ọrụ nke ọma na mmepụta mmepụta ihe.

 

Anọ. Ngwa ọhụrụ na ntụzịaka kachasị

The elu arụmọrụ nkesilicon carbide graphite crucible na ngwa bara uru tumadi dabeere na ya nke ọma itinye n'ọrụ nke thermal ike na ihe kwụsie ike. Ndị a bụ ụfọdụ ngwa ọhụrụ na ntụzịaka kachasị mma n'ọdịnihu:

 

Igwe ọkụ na-ekpo ọkụ na-agbaze: N'ime usoro nke igwe okpomọkụ dị elu,silicon carbide graphite crucible nwere ike imeziwanye ọsọ na ịdị mma nke agbaze. Dịka ọmụmaatụ, na mgbaze nke nkedo, ọla kọpa, aluminom na ọla ndị ọzọ, nnukwu okpomọkụ nke crucible na nguzogide corrosion na-enyere ya aka iguzogide mmetụta nke ígwè a wụrụ awụ na-ekpo ọkụ, na-eme ka nkwụsi ike na nchekwa nke usoro mgbaze.

 

Ụgbọ mmiri mmeghachi omume kemịkalụ dị elu:silicon carbide graphite crucible enwere ike iji ya dị ka akpa dị mma maka mmeghachi omume kemịkalụ dị elu. Dịka ọmụmaatụ, na ụlọ ọrụ kemịkalụ, ụfọdụ mmeghachi omume na-ekpo ọkụ na-achọ nnukwu arịa na-eguzogide corrosion, yana njirimara nkesilicon carbide graphite crucibles zuo oke ihe ndị a chọrọ.

 

Mmepe nke ihe ọhụrụ: Na nyocha na mmepe nke ihe ọhụrụ.silicon carbide graphite crucible enwere ike iji ya mee ihe dị ka ngwá ọrụ bụ isi maka nhazi na njikọ okpomọkụ dị elu. Arụmọrụ ya kwụsiri ike na nke ọma thermal conductivity na-enye ebe nnwale dị mma ma kwalite mmepe nke ihe ọhụrụ.

 

Nkà na ụzụ na-echekwa ike na mbelata ikuku: Site na ịkwalite ọnọdụ mmeghachi omume kemịkal nkesilicon carbide graphite crucible, Enwere ike imeziwanye arụmọrụ ọkụ ya na ike oriri. Dịka ọmụmaatụ, a na-amụ ntinye nke ndị na-emepụta ihe n'ime crucible iji meziwanye arụmọrụ nke mmeghachi omume redox, si otú ahụ belata oge ikpo ọkụ na ike oriri.

 

Ngwakọta ihe na mgbanwe: Ijikọta ya na ihe ndị ọzọ na-arụ ọrụ dị elu, dị ka ịgbakwunye ceramic fibers ma ọ bụ nanomaterials, nwere ike ịkwalite nguzogide okpomọkụ na ike n'ibu.silicon carbide graphite crucibles. Tụkwasị na nke ahụ, site na usoro mgbanwe dị ka ọgwụgwọ mkpuchi elu, nkwụsị nke corrosion na okpomọkụ conductivity nke crucible nwere ike ime ka ọ dịkwuo mma.

 

5. Mmechi na atụmanya n'ọdịnihu

Ụkpụrụ endothermic nkesilicon carbide graphite crucible bụ iji ike ọkụ na-arụ ọrụ nke ọma na-adabere na ihe onwunwe ya na mmeghachi omume kemịkal. Ịghọta na ịkwalite ụkpụrụ ndị a dị oke mkpa maka imeziwanye mmepụta mmepụta ụlọ ọrụ na nyocha ihe. N'ọdịnihu, na-aga n'ihu na nkà na ụzụ na-aga n'ihu na mmepe nke ihe ọhụrụ.silicon carbide graphite crucibleA na-atụ anya na ọ ga-arụ ọrụ dị mkpa na mpaghara okpomọkụ dị elu karị.

 

Site na ihe ọhụrụ na nkwalite na-aga n'ihu.silicon carbide graphite crucible ga-aga n'ihu na-emeziwanye arụmọrụ ya ma na-akwalite mmepe nke ụlọ ọrụ ndị metụtara ya. Na mgbaze ọla dị elu, mmeghachi omume kemịkalụ dị elu, yana mmepe ihe ọhụrụ.silicon carbide graphite crucible ga-aghọ ngwá ọrụ dị mkpa, na-enyere ụlọ ọrụ ọgbara ọhụrụ na nchọpụta sayensị aka iru elu ọhụrụ.