Tooj liab ua npuas ncauj yog ib hom tshiab ntawm cov khoom siv ntau yam nrog ntau cov kev sib txuas lossis tsis txuas qhov pores sib npaug ntawm cov tooj liab matrix. Copper ua npuas ncauj muaj zoo conductivity thiab ductility. Piv nrog npib tsib xee ua npuas ncauj, nws muaj cov nqi npaj tsawg thiab kev ua haujlwm zoo, thiab tuaj yeem siv los npaj cov khoom siv roj teeb tsis zoo (carrier), catalyst carrier thiab electromagnetic shielding khoom.
Tshwj xeeb, foamed tooj liab muaj qee qhov pom tseeb zoo li lub substrate rau roj teeb electrodes, tab sis vim tooj liab tsis zoo li corrosion-resistant li npib tsib xee, nws kuj txwv qee qhov ntawm nws daim ntawv thov.
Lub foamed tooj liab yog npaj los ntawm hmoov metallurgy thiab electroplating, thiab cov foamed hlau yog npaj los ntawm kev ntxiv ib tug foaming tus neeg sawv cev rau hauv lub molten hlau;
1.Powder metallurgy hlau foams ua los ntawm kev ntxiv cov tshuab tshuab (xws li NH4Cl) rau cov hmoov, cov tshuab tshuab volatilizes thaum sintering, tawm hauv voids.
2. Electrochemical deposition txoj kev yuav siv tau los npaj foamed hlau nrog cov zoo li niaj zaus thiab porosity mus txog 95%, nrog rau cov hlau foams nrog Cu, Ni, NiCrFe, ZnCu, NiCu, NiCrW, NiFe thiab lwm yam hlau thiab alloys li pob txha.
Cov hlau yog tso rau ntawm lub cev ntxeem tau los ntawm txoj kev siv hluav taws xob, thiab cov khoom tso tawm tau koom ua ke los ntawm sintering, thiab lub zog nce mus txog qhov yuav tsum tau muaj cov porosity hlau ua npuas ncauj, uas muaj cov porosity siab thiab tuaj yeem ntim nrog ntau cov ntaub ntawv, xws li catalysts. . , electrolyte, thiab lwm yam.
3. Los ntawm-qhovtooj liab ua npuas ncaujyog npaj los ntawm sintering-desolvation txheej txheem, thiab electrolytic tooj liab hmoov, NaCl hais thiab additives yog tov uniformly thiab nias rau hauv ntsuab compacts. Lub sintering rauv yog muab tso rau hauv ib qho chaw argon rau sintering, thiab cov khoom tau muab tso rau hauv cov dej kub. Dissolved nyob rau hauv lub ntaus ntawv, ces ntxuav nrog ultrasonic da dej thiab acetone, thiab thaum kawg qhuav los tsim qhib pores, uas yog tsim los ntawm ib tug peb-txoj kev sib txuas qhov chaw network, nrog ib tug porosity ntawm 50-81%, qhov nruab nrab pore txoj kab uas hla ntawm 0.2- 4 mm, thiab pore faib.

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