I-Tantalum carbide (TaC)yimathiriyeli ye-ceramic ephezulu yobushushu obuphezulu obunokumelana nobushushu obuphezulu, ukuxinana okuphezulu, ukuxinana okuphezulu; ukucoceka okuphezulu, umxholo wokungcola <5PPM; kunye ne-inertness yeekhemikhali kwi-ammonia kunye ne-hydrogen kumaqondo obushushu aphezulu, kunye nokuzinza okuhle kwe-thermal.
Into ebizwa ngokuba yi-ultra-high temperatures ceramics (UHTCs) ihlala ibhekisa kwiklasi yemathiriyeli yeceramic enendawo yokunyibilika engaphezulu kwe-3000℃ kwaye isetyenziswa kumaqondo obushushu aphezulu kunye neendawo ezitshabalalisayo (ezifana nemekobume yeathom yeoksijini) ngaphezulu kwe-2000 ℃, njenge. I-ZrC, HfC, TaC, HfB2, ZrB2, HfN, njl.
Tantalum carbideinendawo yokunyibilika ukuya kuthi ga kwi3880℃, inobulukhuni obuphezulu (Mohs hardness 9-10), i-thermal conductivity enkulu (22W · m-1 · K-1), amandla amakhulu okugoba (340-400MPa), kunye nokwandiswa kwe-thermal coefficient. (6.6×10-6K-1), kwaye ibonisa uzinzo olubalaseleyo lwe-thermochemical kunye neempawu ezibalaseleyo zomzimba. Inokuhambelana kakuhle kweekhemikhali kunye nokuhambelana nomatshini kunye negraphite kunye ne-C / C composite. Ngoko ke,Iingubo ze-TaCzisetyenziswa ngokubanzi kwi-aerospace yokukhusela i-thermal, ukukhula kwekristale enye, i-electronics yamandla, kunye nezixhobo zonyango.
I-Tantalum carbide (TaC)lilungu losapho lwe-ceramic yobushushu obuphezulu kakhulu!
Njengoko iinqwelomoya zale mihla ezinje ngeemoto ze-aerospace, iirokethi, kunye nemijukujelwa ziphuhla zisiya kwisantya esiphezulu, ukutyhala okuphezulu, kunye nokuphakama okuphezulu, iimfuno zokuxhathisa ubushushu obuphezulu kunye nokumelana ne-oxidation yezixhobo zabo zomphezulu phantsi kweemeko ezigqithisileyo ziya ziba phezulu kwaye ziphezulu. Xa inqwelo-moya ingena kwi-atmosfera, ijongana nemeko-bume egqithisileyo efana nokuxinana kobushushu obuphezulu, uxinzelelo oluphezulu lokuma, kunye nesantya sokuhamba komoya esikhawulezayo, kunye nokukhutshwa kweekhemikhali okubangelwa kukusabela kweoksijini, umphunga wamanzi kunye nekharbon diokside. Xa inqwelo-moya ibhabha iphuma isiya kwiatmosfera, umoya ojikeleze impumlo yayo kunye namaphiko ayo aya kucinezeleka kanobom aze avelise ukungqubana okukhulu nomphezulu wenqwelo-moya, nto leyo ebangela ukuba umphezulu wayo ufudumale kukuhamba komoya. Ukongeza kubushushu be-aerodynamic ngexesha lokubhabha, umphezulu wenqwelomoya nawo uya kuchatshazelwa yimitha yelanga, ukusasazeka kwemitha yendalo esingqongileyo, njl.njl. ngexesha lokubhabha, okubangela ukuba ubushushu bomphezulu wenqwelomoya buqhubeke nokunyuka. Olu tshintsho luya kuchaphazela kakhulu imeko yenkonzo yenqwelomoya.
I-Tantalum carbide powder lilungu losapho lwe-ceramic ukumelana nobushushu obuphezulu. Indawo yayo ephezulu yokunyibilika kunye nozinzo olubalaseleyo lwe-thermodynamic yenza i-TaC isetyenziswe ngokubanzi kwisiphelo esishushu senqwelomoya, umzekelo, inokukhusela umphezulu ogqunywe ngumbhobho we-rocket injini.
Ixesha lokuposa: Aug-06-2024