Tantalum carbide (TaC)yog ultra-siab kub ceramic khoom nrog kub tsis kam, siab ceev, siab compactness; siab purity, impurity cov ntsiab lus <5PPM; thiab tshuaj inertness rau ammonia thiab hydrogen ntawm qhov kub thiab txias, thiab zoo thermal stability.
Lub npe hu ua ultra-high temperature ceramics (UHTCs) feem ntau yog xa mus rau cov chav kawm ntawm cov ntaub ntawv ceramic nrog lub melting point ntawm ntau tshaj 3000 ℃ thiab siv nyob rau hauv kub kub thiab corrosive ib puag ncig (xws li oxygen atomic ib puag ncig) saum 2000 ℃, xws li ZrC, HfC, TaC, HfB2, ZrB2, HfN, thiab lwm yam.
Tantalum carbideNws muaj qhov melting point txog 3880 ℃, muaj hardness siab (Mohs hardness 9-10), thermal conductivity loj (22W·m-1·K-1), loj dabtsi yog khoov zog (340-400MPa), thiab me me thermal expansion coefficient (6.6 × 10-6K-1), thiab ua pov thawj zoo heev thermochemical stability thiab lub cev zoo heev. Nws muaj cov tshuaj zoo sib xws thiab cov khoom siv sib xws nrog graphite thiab C / C composites. Yog li ntawd,TAC coatingsyog siv dav hauv aerospace thermal tiv thaiv, ib qho siv lead ua loj hlob, lub zog hluav taws xob, thiab cov khoom siv kho mob.
Tantalum carbide (TaC)yog ib tug tswv cuab ntawm ultra-siab kub ceramic tsev neeg!
Raws li niaj hnub aircraft xws li aerospace tsheb, foob pob ua ntxaij, thiab missiles loj hlob mus rau kev kub ceev, siab thrust, thiab high altitude, qhov yuav tsum tau rau kub kub kuj thiab oxidation tsis kam ntawm lawv cov ntaub ntawv saum npoo nyob rau hauv huab cua kub yog siab dua thiab siab dua. Thaum lub dav hlau nkag mus rau qhov chaw nyob ib puag ncig xws li cov pa hluav taws xob siab, nrog rau cov tshuaj lom neeg ua rau muaj pa, dej ntshiab, thiab cov pa roj carbon dioxide. Thaum lub dav hlau ya tawm ntawm thiab mus rau hauv cov huab cua, cov huab cua nyob ib ncig ntawm nws lub qhov ntswg lub khob hliav qab thiab tis yuav raug compressed heev thiab tsim kev sib txhuam ntau dua nrog rau saum npoo ntawm lub dav hlau, ua rau nws saum npoo yuav tsum tau rhuab los ntawm airflow. Ntxiv rau qhov ua kom sov aerodynamically thaum lub davhlau, qhov saum npoo ntawm lub dav hlau tseem yuav cuam tshuam los ntawm hnub ci hluav taws xob, hluav taws xob ib puag ncig, thiab lwm yam thaum lub sijhawm ya davhlau, ua rau qhov kub thiab txias ntawm lub dav hlau txuas ntxiv mus. Qhov kev hloov no yuav cuam tshuam rau kev pabcuam ntawm lub dav hlau.
Tantalum carbide hmoov yog ib tug tswv cuab ntawm ultra-siab kub resistant ceramic tsev neeg. Nws lub siab melting point thiab zoo heev thermodynamic stability ua TaC dav siv nyob rau hauv kub kawg ntawm aircraft, piv txwv li, nws muaj peev xwm tiv thaiv lub nto txheej ntawm lub foob pob ua ntxaij cav nozzle.
Post lub sij hawm: Aug-06-2024