Zircond fiber ntau yog ib qho oxide refractory ua los ntawm zirconium oxide (zro2) Nrog kev coj dawb huv ntau dua 99% siv cov txheej txheem kev ua haujlwm siab lossis lwm cov txheej txheem tshwj xeeb.
Zirconia fiber ntau yam khoom
Zirconia muaj qhov suab nrov ntawm 2700 degree thiab mohs hardness ntawm 7. Nws muaj ob qhov sib txawv. Hauv qab no 1000 degree, nws yog ib lub kaw lus monoclinic (ceev 5.68g / cm3), thiab ntawm 1000 degree, nws tsim ib lub zog tetragonal (ntom 6.10g / cm3). Daim ntawv Crystal no yog kev hloov pauv rov qab. Thaum lub sij hawm txias txheej txheem, cov Crystal Daim Ntawv Kev hloov pauv yog nrog los ntawm 7% ntim nthuav, uas tuaj yeem ua rau cov khoom tawg. Ntxiv cov stabilizers thiab zro2Txhawm rau tsim cov cubic cov kua tuaj yeem tshem tawm cov ntawv nthuav dav tshwm sim los ntawm cov lus sib txawv saum toj no crystal. Zirconia muaj tsawg thermal conductivity (1000 degree, 2.09W / (map k)), loj linear nthuav coefficiency coefficiency ({} × 10-6/ degree), kev kub siab lub zog, thiab txuas nrog compressive compressive muaj zog tuaj yeem mus txog {} mpa ntawm 1000 degree. Nws muaj kev ua haujlwm zoo thiab qhov kub thiab txias coefficient ntawm kev tiv taus. Kev tiv taus yog 104ωωω at at at at at at at 1000 Degree thiab {4 4}} kev kawm qib siab. Nws muaj cov tshuaj ruaj khov zoo thiab tsis ua haujlwm ntawm ntau yam hlau thiab hlau, silicates, tsom iav, thiab lwm yam hauv qab no. Cov kev daws teeb meem ntawm caustic alkali, carbonates, thiab ntau cov acids (tshwj tsis yog cov sulfuric acid thiab hydrofluoric acid) tsis ua haujlwm ntawm zirconium oxide.
Khoom Piav Qhia
Zirconia fiber ntau yog tib lub polycrystalline fiber ntau cov khoom lag luam uas tuaj yeem siv rau lub sijhawm ntev hauv ultra-siab oxidizing huab cua saum toj no 1600 degree. Vim yog lub siab melting point thiab tsis-oxidation ntawm zro2Nws tus kheej, nws muaj qhov siv kub siab thiab thermal rwb thaiv tsev ua haujlwm tshaj alumina fiber ntau. Ib qho ntxiv, nws tau ruaj khov rau cov khoom siv hluav taws xob siab, oxidation tsis kam, thermal poob siab, tsis muaj kuab paug, thiab tsis muaj kuab paug. Zircond fiber ntau yog ib qho zoo-tsim nyog cov khoom siv hluav taws xob saum toj.
Khoom nta
■ Tsawg Thermal conductivity thiab muaj peev xwm ua kom sov;
Kev khiav hauj lwm kub siab thiab zoo thermal rwb thaiv tsev kev ua tau zoo;
■ Corrosion thiab oxidation tsis kam;
■ Tsis yooj yim rau qhov kub thiab txias thiab tsis muaj kuab paug.
Cov Ntawv Thov
■ Aerospace, kev lag luam tub rog, kev tiv thaiv hauv tebchaws, atomic zog thiab lwm thaj teb tseem ceeb.
Eplion Sintering, Hlau Sintering, Hlau SMELING, PETROLEUM CRACKING, Kev Tshawb Fawb Kev Tshawb Fawb, Ntau Yam Teb Chaws.
Cov khoom tsis muaj
|
Tshuaj Muaj Tshuaj |
Tetronal zro2cov ntsiab lus ntau dua los yog sib npaug rau 99% |
|
Micro qauv |
Polycrystalline tej hub fiber |
|
Sab nraum |
Translucent dawb paj rwb |
|
Fiber diam |
3-8μm |
|
Kev khiav hauj lwm kub |
1600-2200 degree |
|
Thermal conductivity |
0.1-0.15W/m.k |
|
Ceev ntom |
60-150 kg / m3 |
Cim npe nrov: Zirconia Fiber ntau, Tuam Tshoj Chaw Tsim Tshuaj Zircia Fiber Ntau: Cov Chaw Muag Khoom, Hoobkas