Hafnium Silicide, HfSi2

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Hafnium Silicide, HfSi2

Hafnium silicide yog ib hom kev hloov pauv hlau silicide, uas yog ib hom refractory intermetallic compound. Vim tias nws qhov tshwj xeeb ntawm lub cev thiab tshuaj, Hafnium silicide tau ua tiav zoo hauv cov teb ntawm cov khoom siv hlau sib ntxiv cov khoom siv hluav taws xob, cov khoom siv nyias txheej txheej, txheej txheem nyias cov txheej txheem, cov khoom siv hluav taws xob, cov khoom siv thermoelectric thiab cov ntaub ntawv photovoltaic. Cov nano cov ntaub ntawv qhia tshwj xeeb hluav taws xob, kho qhov muag, sib nqus thiab cov khoom siv thermoelectric, thiab txawm tias muaj peev xwm thov tau tus nqi hauv daim teb catalysis.


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Cov yam ntxwv ntawm hafnium disilicide
Hafnium silicide yog ib hom kev hloov pauv hlau silicide, uas yog ib hom refractory intermetallic compound. Vim tias nws lub cev thiab tshuaj siv zog,

Hafnium silicide tau ua tiav zoo hauv cov liaj teb ntawm cov khoom siv hlau sib xyaw ua ke cov khoom siv, cov pleev xim nyias nyias, cov qauv txheej txheem ntau, cov qauv khoom siv hluav taws xob, cov khoom siv thermoelectric thiab cov ntaub ntawv photovoltaic.
Cov nano cov ntaub ntawv qhia tshwj xeeb hluav taws xob, kho qhov muag, sib nqus thiab cov khoom siv thermoelectric, thiab txawm tias muaj peev xwm thov tau tus nqi hauv daim teb catalysis.
Nta ntawm hafnium disilicide
Cov khoom muaj siab purity, cov me me qhov loj me, teeb tsa ua ke, qhov loj tshwj xeeb thaj tsam thiab siab yam dej num.

Cov teb thov Cov ntaub ntawv yooj yim, ntau lawm ntawm ntau yam kub tiv taus Cheebtsam thiab cov khoom siv haumxeeb.

Daim Ntawv Thov ntawm Hafnium silicide hauv kev npaj khoom
1. Ua Si ntawm SiC - hfsi2 - TaSi2 anti ablation composite txheej. Cov roj carbon fiber ntau ntxiv carbon (C / C) composite yog ib yam tshiab ntawm cov khoom siv tiv thaiv kev kub siab tiv thaiv nrog cov roj carbon fiber ua kom ntxiv cov pa thiab pyrolytic carbon ua qauv. Vim tias nws qhov kev tiv thaiv zoo tshaj qhov kub-txias, ablation tsis kam thiab kev sib txhuam zoo thiab hnav cov khoom, thaum xyoo 1970, Tebchaws Asmeskas tau ua cov haujlwm tshawb fawb txog C / C cov tshuaj rau cov qauv thermal, uas ua rau C / C cov khoom sib txuas los ntawm scorching cov khoom tiv thaiv tshav kub rau cov qauv txheej txheem thermal. Raws li cov txheej txheem ua haujlwm thermal, C / C cov khoom sib xyaw tuaj yeem siv rau hauv cov qauv txheej txheem ntawm cov roj turbine engine, lub qhov ntswg lub khob ntawm qhov chaw nres tsheb, lub hauv ntej ntawm lub ntug, thiab lwm yam.
Txawm li cas los xij, C / C cov khoom siv yog qhov yooj yim rau oxidize thiab tsis tuaj yeem nquag siv rau hauv oxidation huab cua siab dua 400 ℃. Qhov no yuav tsum muaj kev tiv thaiv los tiv thaiv oxidation rau C / C sau, thiab kev npaj ntawm cov tshuaj tiv thaiv oxidation yog ib qho ntawm cov kev tiv thaiv tseem ceeb. Cov txiaj ntsig tau pom tias cov ablation tsis kam ntawm C / C composites tuaj yeem txhim kho ntxiv thaum Zr, HF, Ta, TiB2 thiab lwm cov hlau refractory ntxiv rau cov pa roj carbon matrix. Txhawm rau kom nkag siab txog qhov muaj zog ntawm HF thiab TA ntawm qhov tsis zoo ntawm cov C / C sib txuas, SiC - hfsi2 - TaSi2 anti ablation txheej tau npaj los ntawm cov qauv. Cov kev ua haujlwm tsis muaj zog ntawm cov txheej tau ntsuas los ntawm oxygenacetylene ablation ntaus ntawv.
2. Npaj ntawm cov khoom siv organic electroluminescent. Uas suav nrog anode, lub teeb ci ntsa txheej, cathode thiab lub ntim ntim uas ntim cov txheej ntawm lub teeb thiab cov cathode ntawm lub anode, lub hau ntim suav nrog silicon nitride txheej thiab txheej txheej txheej tsim nyob rau sab saum npoo ntawm silicon. carbide txheej; cov khoom ntawm cov txheej txheem thaiv txheej txheem suav nrog silicide thiab hlau oxide, thiab cov tshuaj tua kab yog xaiv los ntawm chromium silicide, tantalum disilicide, Hafnium silicide, titanium disilicide thiab disilicide Cov hlau oxide yog xaiv los ntawm cov hlau oxide, txhuas oxide, titanium dioxide, zirconia, hafnium Cov pa roj carbon dioxide thiab tantalum pentoxide. Kev pab cuam lub neej ntawm cov organic teeb ci cov cuab yeej siv tau ntev. Qhov tsim muaj kuj muab txoj hauv kev npaj ntawm cov organic electroluminescent ntaus ntawv.

3. Cov ntaub ntawm Si Ge alloy raws li cov khoom siv thermoelectric. SiGe raws cov khoom siv thermoelectric yog tsim los ntawm txheej txheej electrode, SiGe raws txheej thermoelectric txheej thiab txheej txheej thaiv nruab nrab ntawm txheej txheej electrode thiab SiGe raws txheej thermoelectric txheej. Cov txheej thaiv txheej txheem yog sib xyaw ua ke ntawm silicide thiab silicon nitride, thiab cov tshuaj tua kab yog tsawg kawg ntawm ib qho molybdenum silicide, tungsten silicide, cobalt silicide, nickel silicide, niobium silicide, zirconium silicide, tantalum silicide thiab Hafnium silicide. Kev sib xyaw ntawm cov roj silicon germanium alloy raws thermoelectric Cheebtsam yog sib raug zoo, tsis muaj cov kab nrib pleb thiab pom tseeb pom qhov sib txawv muaj nyob ntawm qhov sib cuam tshuam, kev tiv tauj tiv thaiv yog qhov me me, lub thermal tiv tauj lub xeev tau zoo, nws tuaj yeem tiv cov kev ua haujlwm siab kub siab ntev ntev. Cov. Ntxiv rau, cov txheej txheem kev npaj muaj qhov zoo ntawm cov txheej txheem yooj yim, kev ntseeg siab, qis tus nqi, tsis muaj cov cuab yeej tshwj xeeb thiab haum rau cov khoom tsim ntau.

4. Ib hom ntawm qhov kub siab tiv thaiv thiab tiv thaiv oxidation cermet composite txheej tau npaj. Cov yeeb yaj kiab sib xyaw ua ke yog cim tau tias cov xim txheej yog ua nrog refractory hlau, refractory carbide thiab intermetallic compound, thiab cov txheej tuab yog 10 μ m ~ 50 μ M. Cov hlau refractory yog ib lossis ntau dua ntawm molybdenum, tantalum, zirconium thiab hafnium; qhov refractory carbide yog tsim ntawm silicon carbide thiab ib lossis ntau dua ntawm tantalum carbide, zirconium carbide thiab hafnium carbide; qhov kev sib xyaw ua ke yog tsim los ntawm ib lossis ntau hom molybdenum silicide, tantalum silicide, zirconium silicide, Hafnium silicide, tantalum carbide, zirconium silicide thiab hafnium carbide; cov qauv siv lead ua ntawm txheej tau tsim los ntawm amorphous thiab / lossis polycrystalline nanoparticles.


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