Sehlopha sa bo-ramahlale ba NUST MISIS se ile sa etsa thepa ea ceramic e nang le sebaka se phahameng ka ho fetisisa sa ho qhibiliha har'a metsoako e tsejoang hajoale. Ka lebaka la motsoako o ikhethang oa thepa ea 'mele, ea mechine le ea mocheso, thepa e tšepisa hore e tla sebelisoa likarolong tse tletseng mocheso oa lifofane, tse kang li-nose fairings, li-jet enjene le mapheo a ka pele a bohale a sebetsang ka mocheso o ka holimo ho 2000 degrees C. Liphetho li phatlalalitsoe ho Ceramics International.

Mekhatlo e mengata e etellang pele ea sebaka (NASA, ESA, hammoho le mekhatlo ea Japane,Chinale India) li ntse li tsoela pele ho nts'etsapele lifofane tsa sepakapaka tse ka sebelisoang hape, tse tla fokotsa haholo litšenyehelo tsa ho isa batho le thepa ho potoloha, hammoho le ho fokotsa nako lipakeng tsa lifofane.

“Hajoale, ho fihletsoe liphetho tse kholo ntlafatsong ea lisebelisoa tse joalo. Ka mohlala, ho fokotsa radius e pota-potileng ea mapheo a ka pele a mapheo ho li-centimeters tse 'maloa ho lebisa keketseho e kholo ea ho phahamisa le ho tsamaisa, hammoho le ho fokotsa ho hula ha aerodynamic. Leha ho le joalo, ha u tsoa sepakapakeng 'me u kena ho sona hape, holim'a mapheo a sefofane sa sepakapaka, mocheso oa hoo e ka bang 2000 degrees C o ka bonoa, o fihla ho likhato tse 4000 qetellong. Ka hona, ha ho tluoa tabeng ea lifofane tse joalo, ho na le potso e amanang le pōpo le nts'etsopele ea lisebelisoa tse ncha tse ka sebetsang ka mocheso o phahameng joalo, "ho bolela Dmitry Moskovskikh, hlooho ea NUST MISIS Center for Constructional Ceramic Materials.

Nakong ea tsoelo-pele ea morao tjena, sepheo sa bo-rasaense e ne e le ho etsa thepa e nang le ntlha e phahameng ka ho fetisisa ea ho qhibiliha le thepa e phahameng ea mechine. The triple hafnium-carbon-nitrogen system, hafnium carbonitride (Hf-CN), e khethiloe, joalo ka ha bo-rasaense ba tsoang Univesithing ea Brown (US) ba boletse esale pele hore hafnium carbonitride e tla ba le conductivity e phahameng ea mocheso le ho hanyetsa oxidation, hammoho le ho qhibiliha ho phahameng ka ho fetisisa. ntlha har'a metsoako eohle e tsejoang (hoo e ka bang likhato tse 4200 C).

Ba sebelisa mokhoa oa ho iketsetsa mocheso o phahameng oa mocheso, bo-rasaense ba NUSTMISIS ba ile ba fumana HfC0.5N0.35, (hafnium carbonitride) haufi le sebopeho sa khopolo-taba, ka boima bo phahameng ba 21.3 GPa, bo phahameng le ho feta lisebelisoa tse ncha tse tšepisang, joalo ka ZrB2/SiC (20.9 GPa) le HfB2/SiC/TaSi2 (18.1 GPA).

"Ho thata ho lekanya sebaka se qhibilihang sa thepa ha se feta likhato tse 4000 tsa С. Ka hona, re ile ra etsa qeto ea ho bapisa mocheso o qhibilihang oa motsoako o entsoeng le 'mampoli oa pele, hafnium carbide. Ho etsa sena, re ile ra beha lisampole tse hatelitsoeng tsa HFC le HfCN holim'a poleiti ea graphite e bōpehileng joaloka dumbbell, 'me re koahetse ka holimo ka poleiti e tšoanang ho qoba ho lahleheloa ke mocheso, "ho bolela Veronika Buinevich, NUST MISIS seithuti sa morao-rao.

Ka mor'a moo, ba e hokahanya le beteri ba sebelisali-electrode tsa molybdenum. Liteko tsohle li entsoe ka botebovacuum. Kaha karolo ea sefapano sa lipoleiti tsa graphite e fapane, mocheso o phahameng ka ho fetisisa o fihletsoe karolong e moqotetsane. Liphello tsa ho futhumatsa ka nako e le 'ngoe ea thepa e ncha, carbonitride, le hafnium carbide, li bontšitse hore carbonitride e na le sebaka se phahameng sa ho qhibiliha ho feta hafnium carbide.

Leha ho le joalo, hajoale, ntlha e khethehileng ea ho qhibiliha ea thepa e ncha e ka holimo ho likhato tse 4000 tsa C, 'me e ne e ke ke ea khethoa hantle ka laboratoring. Nakong e tlang, sehlopha se rera ho etsa liteko tsa ho lekanya mocheso o qhibilihisang ka pyrometry ea mocheso o phahameng ka ho sebelisa laser kapa ho hanyetsa motlakase. Ba boetse ba rera ho ithuta ts'ebetso ea hafnium carbonitride e hlahisoang maemong a hypersonic, e tla ba ea bohlokoa bakeng sa ts'ebeliso e eketsehileng indastering ea lifofane.