Tantalum Carbide

Lub npe Askiv: Tantalum carbide hmoov

Cov mis mos molecular: TAC

Molecular Luj: 193

CAS #: 12070-06-3

Melting point: 3880 degree

Qhov tsos: Tsaus xim av hmoov

Thermal conductivity: 22 W / (mK)

Coefficient ntawm thermal expansion: 6.6 × 10-6 K-1

Mohs hardness: 9-10

Resistivity: 32.7-117.4 μΩ-cm

Txoj kev khaws cia: dej tsis muaj dej, lub teeb-pov thawj, kaw ntom nti, tsis muaj dej tsis zoo

Kev tshawb fawb ntawm cov hlau matrix composites feem ntau tsom rau monolithic homogeneous composites, tab sis vim hnav tshwm sim tsuas yog nyob rau saum npoo ntawm ib feem, monolithic composites tsis zoo rau kev rov ua dua thiab rov siv cov khoom siv thiab ua paug ib puag ncig. Cov hlau matrix composites tau nyiam ntau cov neeg tshawb fawb hauv cov khoom siv hauv ntau lub teb chaws vim lawv qhov tshwj xeeb zoo, xws li lub zog tshwj xeeb. Ntawm qhov tod tes, ntau cov kev tshawb fawb tau pom tias cov khoom siv los tiv thaiv kev hnav yuav tsum muaj cov qib siab ntawm toughness thiab hardness. Hauv qhov sib piv, tag nrho cov khoom sib xyaw tsuas yog txhim kho toughness, tsis toughness thiab hardness, thaum hlau-ceramic composites tswj cov yam ntxwv zoo ntawm ceramics, xws li qib siab ntawm toughness thiab hnav tsis kam, nrog rau cov qib siab ductility thiab toughness ntawm cov hlau. matrix.

Carbide hais yog siv dav raws li theem thib ob particle-reinforced hlau matrix composites nyob rau hauv cov sectors ntawm aerospace, metallurgy, tsev cov ntaub ntawv, hluav taws xob fais fab, hydropower, mining, thiab lwm yam lag luam. Cov kev sib xyaw no tau tsim cov txiaj ntsig zoo. Tantalum, ib yam khoom nyob rau hauv tib tsev neeg xws li hlau vanadium thiab niobium, yog tsawg dua tshawb xyuas. Feem ntau cov carbide hais tau sau tseg yog tungsten carbide (WC), titanium carbide (TiC), niobium carbide (NbC), thiab vanadium carbide (VCp).

Qhov zoo ntawm Ta carbide (TaC) ceramic particles muaj xws li lawv qhov siab melting point (3880 degree), siab hardness (2100 HV0.05), zoo tshuaj stability, thiab zoo thermal conductivity; Txawm li cas los xij, cov lus ceeb toom ntawm cov ntaub ntawv no tsuas yog ua rau cov nickel-thiab aluminium-raws li substrates vim yog tus nqi thiab lwm yam. Cov khoom theem qauv ntawm npib tsib xee, chromium, thiab aluminium-based reinforced ta carbide hloov raws li cov solidification tus nqi nce, thiab lub ntim feem ntawm TAC kuj hloov nrog cov kev hloov nyob rau hauv solidification tus nqi, raws li Yu et alstudy.'s ntawm kev sib raug zoo ntawm nyob rau hauv situ reactive directional solidification thiab tantalum carbide lub microstructure ntawm high-temperature gradients. Cov txiaj ntsig tau pom tias TaC particle-reinforced nickel-based composite txheej yog tsim tau zoo, nrog lub ntsej muag du thiab kev sib txuas zoo ntawm cov txheej txheem thiab cov substrate, raws li cov txheej txheem tsim nyog. Nyob rau hauv-situ creation ntawm TaC ntawm steel, tsis muaj ntau txoj kev tshawb fawb tau sau tseg. Yog li ntawd, ib tug hlau-raws li composite nrog nto ceramic particle li tau siv nyob rau hauv qhov kev sim no. TaC hais tau raug xaiv los ua cov kauj ruam thib ob ntawm kev txhawb nqa particle tib lub sijhawm. Nyob rau hauv situ reinforced hlau-raws li nto composites nrog TaC hais tau lawv cov microscopic morphology thiab cov tshuaj tiv thaiv mechanism tshuaj xyuas.

Kev siv ntawm tantalum carbide

(1) Nws txhim kho cov yam ntxwv ntawm cov hlau los ntawm kev txhim kho fiber ntau lub koom haum thiab theem hloov kinetics, ua rau muaj zog ntxiv, theem kev ruaj ntseg, thiab ua deformability. Tantalum carbide yog ib qho tseem ceeb ntawm cov cemented carbide.

(2) Nws tuaj yeem siv rau hauv kev lag luam hluav taws xob vim nws muaj ntau yam zoo, nrog rau kev ruaj ntseg tshuaj, siab hardness, tsis kam oxidation thiab corrosion, thiab tsis tshua muaj coefficient ntawm tsis kam.

(3) Nws yog cov khoom siv uas tuaj yeem tswj tau qee yam khoom siv hauv qhov kub ntawm 2900 degree txog 3200 degree. Txawm li cas los xij, vim nws qhov siab coefficient ntawm thermal expansion thiab thermal conductivity tsawg, nws yog qhov tsis tshua muaj siab rau thermal shock, uas tau dhau los ua qhov cuam tshuam loj tshaj plaws rau nws siv hauv cov khoom siv hauv aerospace. Tantalum carbide yuav, txawm li cas los xij, muaj zog thermal conductivity thiab tsawg thermal expansion thaum muab tso rau hauv carbon / carbon composites, uas yuav ua rau siv cov refractory hlau tsis kam mus oxidation thiab ablation rau cov creation ntawm high-temperature alloys.

Khoom zoo

Yusheng Hlau Hoobkas tsim ntau yam ntawm ultra-siab kub ceramic hmoov nyob rau hauv-lub tsev, uas tantalum carbide yog ib tug, thiab kuj tsim hafnium carbide. Tam sim no lub Hoobkas tuaj yeem tsim cov khoom nrog ntau qhov sib txawv xws li qib nano, qib micron thiab qib micron. Lwm qhov loj me tuaj yeem hloov kho. Lub ntim tuaj yeem kho raws li tus neeg siv khoom noj kom muaj nuj nqis.

Cim npe nrov: tantalum carbide, lwm tus neeg, manufacturers, hoobkas, customized, yuav, nqe, hais, zoo, cia muag, hauv Tshuag