Sinikezela ngobunyulu obuphezulu beNano Silicon carbide powder.Lungisa umlinganiselo wemveliso yealloyi ngokweemfuno zomthengi

Iimpawu eziphambili

I-Ultrafine nano silicon carbide, i-silicon carbide powder ngokuguquguquka kwe-ion beam ye-laser, i-chemical vapor deposition by variable current, ukukhutshwa kwamandla aphezulu, inokukoyisa ngokupheleleyo ukusilela kwe-dc electric arc (impendulo engafanelekanga, ukungcola kwemveliso ephezulu, ukuzinza okubi kweemveliso).Ukucoceka okuphezulu, ukusabalalisa ubungakanani bamasuntswana amancinci, indawo ethile ephezulu;I-Nano silicon carbide inomsebenzi ozinzileyo weekhemikhali, i-coefficient ephezulu ye-thermal conductivity (165 w / MK), i-coefficient encinci yokwandisa i-thermal, ubunzima obuphezulu, ubunzima be-mohs ukuya kwi-9.5, i-microhardness ye-2840 ~ 3320 kg / yayiyeyona nto yokuqala yokudibanisa i-abrasion, ubulukhuni bayo buphakathi kwe-alumina edityanisiweyo kunye nedayimani, amandla omatshini angaphezulu kune-alumina edibeneyo;I-Nano silicon carbide ine-conductivity egqwesileyo ye-thermal, ikwaluhlobo lwe-semiconductor, inokumelana nobushushu obuphezulu be-oxidation;I-Nano silicon carbide iyaxhathisa, ukumelana nobushushu obuphezulu, ukumelana nokugqwala, ukumelana ne-asidi kunye ne-alkali yokunyibilikisa, isetyenziswa kakhulu kwipeyinti, ipeyinti, yonyusa ukuxhathisa ukunxiba.

Usetyenziso

Isixhobo senayiloni esi-1 esilungisiweyo samandla aphezulu: i-nanometer SiC powders kwi-polymer composite material composite ilungile, i-dispersibility entle, kwaye idityaniswe ne-matrix elungileyo, kunye ne-alloy eguquliweyo yealloy yamandla aphezulu okuqina ngaphezulu kwe-150% ngaphezulu kwe-PA6 eqhelekileyo, ukunxiba- ukumelana nokusebenza kwandiswe ngaphezu kwamaxesha amathathu.Ikakhulu kumacandelo emoto exhobileyo elandelwayo yepolymer, iindawo zokuqhuba iimoto, oomatshini belaphu, ibhodi yemigodi yoomatshini bemigodi, iindawo zikaloliwe eziphantsi kobushushu obuphantsi be-sintering densification ifikelelwe;

I-2 ehlaziyiweyo yobunjineli obukhethekileyo iiplastiki ze-polyether ether ketone (PEEK) ukusebenza kokumelana nokunxiba: emva kokucubungula ubuso be-nano silicon carbide, xa ukongeza ubuninzi malunga ne-5%, inokuphucula kakhulu kwaye iphakamise ukunxiba kwe-PEEK (yonyuswe ngaphezu kwe-30% );

I-3 yokusetyenziswa kwe-nano silicon carbide kwitayara lerabha: ukongeza i-2% okanye njalo ye-nano silicon carbide ngaphandle kokutshintsha i-collagen ifomyula elungisiweyo, kwaye ngaphandle kokunciphisa ukusebenza kwayo kunye nomgangatho phantsi kwesiseko sokuxhathisa ukunxiba kunokunyuswa ngama-20% - 40 %.Ukongeza, ukusetyenziswa kwe-nano silicon carbide kwi-rubber roller, ifilimu ye-fuser yomshicileli, njengokumelana nokunxiba, ukushisa, ukumelana nobushushu kunye nezinye iimveliso zerabha;

I-4 nanometer ye-SiC edibeneyo yokugubungela ubuso besinyithi: i-nano-scale particles yesibini ye-hybrid particles, i-nickel njengentsimbi ye-matrix, ubuso besinyithi ukwenza ubuninzi obuphezulu, amandla okudibanisa i-electrodeposition enhle kakhulu, isinyithi esinobunzima (ukunxiba) kunye ne-antifriction ( self-lubricating) iimpawu zokumelana nobushushu obuphezulu.Ukuphucula kakhulu i-microhardness edibeneyo yokugquma, ukuxhathisa ukunyuka kwamaxesha angama-2-3, ukuphucula ubomi benkonzo ngamaxesha angama-3-5, amandla okunamathela kwi-coating kunye ne-substrate yanda ngama-40%, isakhono sokugquma esomeleleyo, iingubo ezifanayo, ezigudileyo kwaye zithambile;

Ezinye izinto ezi-5 ezisetyenziswayo: iiseramikhi ezikumgangatho ophezulu (ezifana nombhobho werokethi, ishishini lenyukliya, njl.njl.), imathiriyeli efunxayo, igrisi yokuthambisa enganxibiyo, iipakeki ezisebenza ngokuphezulu, ubulukhuni obuphezulu, ukuxhathisa kokugquma kwengubo yomgubo, ukuqina okuhlanganisiweyo kweceramic. , njl.Kwintsimi yesakhiwo soshishino lwe-aerospace, i-coating esebenzayo, i-coating yokukhusela, i-coating efunxa izinto, izinto ezifihlakeleyo, njl.;Amatanki kunye neenqwelo zezixhobo zokukhusela;Kwisixhobo sokusika i-ceramic, isixhobo sokusika kunye nesixhobo sokulinganisa kunye nokufa;Njengomsebenzi okhethekileyo iiseramics zesakhiwo, iiseramics ezisebenzayo, iiseramics zobunjineli;Umlilo;Izinto zokufudumeza zombane kwimizi-mveliso yombane, ijenereyitha ye-infrared kude.