Nano Hafnium carbide HfC hmoov

1. Cov yam ntxwv ntawm cov khoom siv hafnium carbide:

(1) Hafnium carbide (HfC) yog grey-dub hmoov nrog lub ntsej muag-centered cubic qauv thiab lub siab melting point (3890 ° C).Nws yog ib yam khoom uas muaj lub siab melting point nyob rau hauv ib tug paub ib tug compound thiab yog ib tug siab melting point hlau smelting crucible hauv ob sab phlu.Cov khoom zoo.

(2) Ntawm cov khoom paub, hafnium alloy (Ta4HfC5) nrog siab melting point yog hafnium alloy (Ta4HfC5).Cov khoom siv hafnium alloy ntawm 1 feem ntawm hafnium carbide thiab 4 qhov chaw ntawm tantalum carbide muaj qhov melting point ntawm 4215 ℃, yog li nws tuaj yeem siv los ua cov khoom siv dav hlau thiab daodan.

(3) Hafnium carbide muaj siab elastic coefficient ntawm hen, zoo hluav taws xob thiab thermal conductivity, me me thermal expansion coefficient thiab zoo cuam tshuam.Nws yog qhov tsim nyog rau cov khoom siv foob pob hluav taws nozzle thiab tseem yog cov khoom siv cermet tseem ceeb.

2, Index ntawm cov khoom siv hafnium carbide

3. Kev siv hafnium carbide:

(1) Hafnium carbide yog kub resistant, yanghua resistant ceramic khoom, uas muaj qhov zoo ntawm cov hluav taws xob zoo thiab thermal conductivity thiab tsawg thermal expansion.Hafnium carbide yog tsim rau kev tsim cov khoom tseem ceeb xws li foob pob ua ntxaij nozzles thiab tis fronts, thiab yog siv nyob rau hauv hangtian, industrial ceramics thiab lwm yam teb.

(2) Hafnium carbide muaj hardness siab, tuaj yeem siv los ua cemented carbide additives, tuaj yeem tsim cov khoom siv nrog ntau lub tebchaw (xws li ZrC, TaC, thiab lwm yam), thiab tau siv dav hauv kev txiav cov cuab yeej thiab pwm.

(3) Hafnium carbide muaj siab elastic coefficient, zoo hluav taws xob thiab thermal conductivity, me me thermal expansion coefficient thiab zoo cuam tshuam.Nws yog tsim rau cov ntaub ntawv foob pob hluav taws nozzle thiab tuaj yeem siv rau hauv lub qhov ntswg lub khob ntawm lub foob pob hluav taws.Nws muaj cov ntawv thov tseem ceeb hauv thaj chaw aerospace.Kuj tseem muaj cov ntawv thov tseem ceeb hauv cov nozzles, cov kab mob kub-resistant, electrodes rau arc lossis electrolysis.

(4) Hafnium carbide muaj cov khoom zoo-theem ruaj khov, tshuaj lom neeg tsis kam, thiab muaj peev xwm tsim nyog rau kev siv nyob rau hauv qhov chaw kub kub.Tsis tas li ntawd, evaporating HfC zaj duab xis rau ntawm qhov chaw ntawm cov pa roj carbon nanotube cathode tuaj yeem txhim kho nws cov emission kev ua tau zoo.

(5) Qhov sib ntxiv ntawm hafnium carbide rau C / C composites tuaj yeem txhim kho nws cov ablation tsis kam.Hafnium carbide muaj ntau yam zoo ntawm lub cev thiab tshuaj lom neeg, ua rau nws siv dav hauv chao high-temperature cov ntaub ntawv tam sim no.