Nano Hafnium carbide HfC powder
1. Iimpawu zezinto ze-hafnium carbide:
(1) I-Hafnium carbide (i-HfC) i-gray-black powder kunye nesakhiwo se-cubic ejongene nobuso kunye neqondo eliphezulu kakhulu lokunyibilika (3890 ° C). Yimpahla enendawo ephezulu yokunyibilika kwindawo eyaziwayo eyodwa kwaye iyindawo ephezulu yokunyibilika yesinyithi enyibilikisa i-crucible lining. Izinto ezilungileyo.
(2) Phakathi kwezinto ezaziwayo, i-hafnium alloy (Ta4HfC5) enendawo ephezulu yokunyibilika i-hafnium alloy (Ta4HfC5). I-hafnium alloy material ye-1 inxalenye ye-hafnium carbide kunye neengxenye ze-4 ze-tantalum carbide ine-melting point ye-4215 ℃, ngoko ingasetyenziselwa njengezinto zokwakha kwiinjini ze-jet kunye ne-daodan.
(3) I-Hafnium carbide ine-coefficient ephezulu ye-elastic ye-hen, umbane olungileyo kunye ne-thermal conductivity, i-coefficient encinci yokwandisa i-thermal kunye nokuchasana kwempembelelo efanelekileyo. Ifanelekile kwintsimi yezixhobo ze-rocket nozzle kwaye iyinto ebalulekileyo ye-cermet.
2, Isalathiso sezinto zehafnium carbide
| IBanga | Ubungakanani obusecaleni(nm) | Ucoceko(%) | I-SSA(m2 /g) | Ubuninzi (g/cm 3) | Ulwakhiwo lweCrystal | Umbala |
| Nanometer | 100nm 0.5-500um,1-400mesh | >99.9 | 15.9 | 3.41 | ihexagon | Mnyama |
3. Ukusetyenziswa kwe-hafnium carbide:
(1) I-Hafnium carbide yinto ephezulu yokumelana nobushushu, i-yanghua ixhathisa i-ceramic imathiriyeli, enenzuzo yombane kunye ne-thermal conductivity kunye nokwandiswa kwe-thermal ephantsi. I-Hafnium carbide ifanelekile ukwenza iindawo ezibalulekileyo ezifana ne-rocket nozzles kunye ne-wing fronts, kwaye isetyenziswa kakhulu kwi-hangtian, i-ceramics yezoshishino kunye nezinye iindawo.
(2) I-Hafnium carbide inobunzima obuphezulu, ingasetyenziselwa njengezongezo ze-carbide ze-cemented, inokwenza isisombululo esiqinileyo kunye neengqungquthela ezininzi (ezifana ne-ZrC, i-TaC, njl.), kwaye isetyenziswe ngokubanzi kwintsimi yezixhobo zokusika kunye nokubunjwa.
(3) I-Hafnium carbide ine-coefficient ephezulu ye-elastic, i-coefficient yombane kunye ne-thermal conductivity, i-coefficient encinci yokwandisa i-thermal kunye nokuchasana kwempembelelo efanelekileyo. Ifanelekile kwizixhobo ze-rocket nozzle kwaye ingasetyenziselwa kwi-cone yempumlo yeerokethi. Inezicelo ezibalulekileyo kwindawo ye-aerospace. Kukho izicelo ezibalulekileyo kwimibhobho, i-high-temperature resistant linings, i-electrodes ye-arc okanye i-electrolysis.
(4) I-Hafnium carbide inozinzo oluhle lwesigaba esiqinileyo, ukuchasana kweekhemikhali, kwaye inamandla okulungele ukusetyenziswa kwiindawo eziphezulu zokushisa. Ukongeza, ukukhupha ifilimu ye-HfC kumphezulu we-carbon nanotube cathode kunokuphucula kakhulu ukusebenza kwayo kokukhupha intsimi.
(5) Ukongezwa kwe-hafnium carbide kwii-composites ze-C / C kunokuphucula ukuxhathisa kwayo. I-Hafnium carbide ineempawu ezininzi ezibalaseleyo zomzimba kunye neekhemikhali, iyenza isetyenziswe ngokubanzi kwizinto ezikhoyo zobushushu obuphezulu.
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