O le a le SiC coating?

 

O le a le Silicon Carbide SiC Coating?

Silicon Carbide (SiC) faʻapipiʻi o se tekonolosi faʻafouina lea e maua ai le puipuiga faʻapitoa ma le faʻatinoga i totonu o le vevela ma le faʻaogaina o vailaʻau. O lenei faʻapipiʻi maualuga e faʻaaogaina i mea eseese, e aofia ai graphite, ceramics, ma metals, e faʻaleleia ai a latou meatotino, ofoina atu puipuiga sili atu i le pala, faʻamaʻi, ma le ofuina. O meatotino tulaga ese o SiC coatings, e aofia ai lo latou mama maualuga, faʻaleleia lelei le vevela, ma le faʻatulagaina o le faʻamaoni, e faʻaogaina lelei mo le faʻaaogaina i pisinisi e pei o le gaosiga o le semiconductor, aerospace, ma tekonolosi faʻavevela maualuga.

 

Tulaga lelei o le faʻapipiʻi carbide silicon

O le SiC coating e ofoina atu le tele o faʻamanuiaga autu e tuʻu ese ai mai faʻamaʻi puipuia masani:

• -Mata'i maualuga & Tete'e Corrosion
• O le fausaga SiC kupita e faʻamautinoa ai le faʻapipiʻiina maualuga, faʻaleleia atili le faʻafefeteina ma faʻalauteleina le ola o le vaega.
• - Tulaga Fa'apitoa o Faiga Lavelave
• O le SiC coating e lauiloa mo lona lelei tele, e oʻo lava i pu tauaso laiti ma loloto e oʻo atu i le 5 mm, e ofoina atu le mafiafia tutusa i lalo i le 30% i le pito loloto.
• -Tagata Fa'aafanua Laupapa
• E fetuutuuna'i le faiga o le ufiufi, e mafai ai ona fesuia'i le ga'a o luga e fetaui ma manaoga fa'apitoa.
• -Ulu mama maualuga
• Ausia e ala i le faʻaogaina o kasa mama-maualuga, SiC faʻapipiʻi e tumau pea le mama atoatoa, ma tulaga le mama e masani lava i lalo ole 5 ppm. O lenei mama e taua tele mo alamanuia maualuga-tekonolosi e manaʻomia le saʻo ma le faʻaleagaina.
• -maumau fa'avevela
• Silicon carbide ceramic coating e mafai ona tatalia le vevela vevela, faʻatasi ai ma le maualuga o le faʻaogaina o le vevela e oʻo atu i le 1600 ° C, faʻamautinoa le faʻatuatuaina i siosiomaga maualuga-vevela.

 

Fa'aaogāina ole SiC Coating

SiC coatings o loʻo faʻaaogaina lautele i pisinisi eseese mo a latou faʻatinoga e le mafaatusalia i siosiomaga faigata. O talosaga autu e aofia ai:

• -LED & Alamanuia Solar
• O loʻo faʻaaogaina foi le faʻapipiʻi mo vaega i le LED ma le gaosiga o le la, lea e manaʻomia ai le maualuga o le mama ma le vevela.
• - Tekinolosi Faʻavevela maualuga-Sua
• SiC-coated graphite ma isi mea o loʻo faʻaaogaina i elemene faʻavevela mo ogaumu ma reactors faʻaaogaina i faiga faʻapisinisi eseese.
• - Semiconductor Crystal Growth
• I le tuputupu aʻe tioata semiconductor, faʻaoga SiC coatings e puipuia ai vaega o loʻo aʻafia i le tuputupu aʻe o le silicon ma isi tioata semiconductor, e ofoina atu le maualuga o le faʻafefeteina ma le faʻamautuina o le vevela.
• -Silicon ma SiC Epitaxy
• SiC coatings o loʻo faʻaogaina i vaega i le faʻagasologa o le tuputupu aʻe epitaxial o le silicon ma le silicon carbide (SiC). O nei paʻu e puipuia ai le faʻamaʻiina, faʻaleagaina, ma faʻamautinoa le lelei o le epitaxial layers, lea e taua tele mo le gaosiga o masini semiconductor maualuga.
• -Oxidation ma Fa'asalalauga Fa'agasologa
• O vaega faʻapipiʻi SiC o loʻo faʻaaogaina i le faʻamaʻiina ma le faʻasalalauga, lea latou te tuʻuina atu ai se pa puipui lelei e faasaga i mea leaga e le manaʻomia ma faʻaleleia le faʻamaoni o le oloa mulimuli. O paʻu e faʻaleleia ai le umi ma le faʻamaoni o vaega e faʻaalia i le maualuga o le vevela o le faʻamaʻiina poʻo le faʻasalalau laasaga.

 

Meatotino Autu ole SiC Coating

SiC coatings e ofoina atu le tele o meatotino e faʻaleleia ai le faʻatinoga ma le umi o vaega faʻapipiʻi sic:

• - Fa'a tioata
• O le ufiufi e masani ona gaosia i le aβ 3C (kupita) tioatafausaga, lea e isotropic ma ofoina atu puipuiga sili ona leaga.
• -Density ma Porosity
• SiC coatings e iai le mamafa o3200 kilokalama/m³ma fa'aalia0% porosity, faʻamautinoa le faʻaogaina o le helium leak-tight performance ma le lelei o le teteʻeina o le pala.
• - Meatotino vevela ma Eletise
• SiC coating e maualuga le conductivity vevela(200 W/m·K)ma sili atu le malosi o le eletise(1MΩ·m), fa'apena lelei mo talosaga e mana'omia ai le fa'aogaina o le vevela ma le fa'amalo eletise.
• -Malosi Fa'ainisinia
• Fa'atasi ai ma se fa'a'au'au fa'asolosolo o450 GPa, SiC coatings e maua ai le malosi faʻainisinia sili atu, faʻaleleia atili le faʻatulagaina o vaega.

 

SiC silicon carbide coating Process

O le SiC coating e faʻaaogaina e ala i le Chemical Vapor Deposition (CVD), o se faʻagasologa e aofia ai le faʻaleagaina o le vevela o kasa e teu ai ni mea manifinifi SiC i luga o le meaʻai. O lenei metotia fa'aputu e mafai ai ona maua le maualuga o le tuputupu a'e ma le fa'atonu sa'o i luga o le mafiafia o fa'afu, lea e mafai ona afua mai10 µm i le 500 µm, e faalagolago i le talosaga. O le faʻagasologa o le faʻapipiʻiina e faʻamautinoa ai foʻi le ufiufi toniga, e oʻo lava i geometries lavelave pei o pu laiti pe loloto, lea e masani ona luʻitau mo metotia faʻapipiʻi masani.

 

Mea e Talafeagai mo le SiC Coating

SiC coatings e mafai ona faʻaogaina i le tele o meafaitino, e aofia ai:

• -Graphite ma Carbon Composite
• O le Graphite o se mea lauiloa mo le SiC coating ona o lona lelei tele ma le eletise. SiC coating infiltrate le graphite's porous structure, fausia se sootaga faaleleia ma maua ai puipuiga sili.
• -Seramika
• O sima fa'avae Silicon e pei o le SiC, SiSiC, ma le RSiC e fa'amanuiaina mai le SiC coatings, lea e fa'aleleia atili ai lo latou tete'e ma puipuia le fa'asalalauina o mea leaga.

 

Aisea e Filifilia ai le SiC Coating?

O le faʻaofuofu i luga e maua ai se fofo sili ona lelei ma taugofie mo alamanuia e manaʻomia le maualuga o le mama, faʻafefeteina, ma le mautu o le vevela. Pe o e galue i le semiconductor, aerospace, poʻo le maualuga o le faʻavevelaina o vaega, SiC coatings e tuʻuina atu le puipuiga ma le faʻatinoga e te manaʻomia e faʻatumauina ai le lelei o galuega. O le tu'ufa'atasiga o fausaga kupita maualuga, mea fa'apitoa i luga ole laiga, ma le mafai ona ofuina geometries lavelave fa'amautinoaina e mafai e elemene fa'apipi'i sic ona tatalia si'osi'omaga sili ona lu'itau.

Mo nisi fa'amatalaga po'o le fa'atalanoaina pe fa'apefea ona fa'amanuiaina lau fa'aoga patino, fa'amolemolefaafesootai matou.