Mu "high-temperature battlefield" yeindasitiri yemazuva ano, zvechinyakare simbi zvinhu zvinowanzosangana nematambudziko akadai sekupfavisa deformation, oxidation uye corrosion. Uye rudzi rutsva rwezvinhu zvinonzisilicon carbide ceramiciri chinyararire ichiva muchengeti wepakati wemidziyo yekupisa-yepamusoro nehukuru hwayo hutatu hwe "high tembiricha kuramba, anti agitation, uye kukurumidza kupisa kupisa".
1. Iko kukwanisa kwechokwadi kutsungirira kupisa kwakanyanya
Silicon carbide ceramics inherently ine kugona kupikisa kupisa kwakanyanya. Maatomu ayo akanyatsobatanidzwa kuburikidza neakasimba covalent mabhondi, senge matatu-dimensional network yakarukwa kubva kusimbi mbariro, iyo inogona kuchengetedza kuvimbika kwechimiro kunyangwe munzvimbo dzakanyanya tembiricha dze1350 ℃. Hunhu uhwu hunoita kuti huve nyore kukwanisa kushanda kwenguva yakareba-yepamusoro-tembiricha izvo zvinhu zvesimbi hazvigone kumira, zvichiita kuti ive sarudzo yakanaka yeminda yakadai sembambo yekubikira uye spacecraft inodzivirira kupisa.
2, 'Nhoo yekudzivirira' kubva kune oxidative corrosion
Pasi pekumanikidza kwehuviri hwekushisa kwepamusoro uye corrosive media, zvinhu zvakajairika zvinowanzosvuura dhizaini sesimbi ine ngura. Pamusoro pesilicon carbide ceramics inogona kuita dense yekudzivirira layer yesilicon dioxide, sekuzvifukidza nenhumbi dzisingaoneki. Ichi "kuzviporesa" chimiro chinoigonesa kurwisa kupisa-kupisa oxidation pa1350 ℃ uye kuramba kukukurwa kubva kunyungudutswa munyu, asidhi uye alkali. Inochengetedza chimiro chekuchengetedza che "hapana hupfu, hapana kudurura" munzvimbo dzakaoma dzakadai semarara emarara uye mareactor emakemikari.
3, The 'courier' yekupisa
Kusiyana ne "kupisa uye kunyorova" maitiro emakeramiki akajairwa, silicon carbide ceramics ine thermal conductivity inofananidzwa nesimbi. Iyo yakafanana neyakavakwa-mukati inopisa kupisa mugero, iyo inogona kukurumidza kutamisa yakaunganidzwa kupisa mukati memudziyo kune kunze. Iyi "hapana kuhwanda kupisa" inodzivirira kukuvadzwa kwezvinhu kunokonzerwa nekupisa kwakanyanya kwenzvimbo, zvichiita kuti michina inodziya zvikuru ishande yakachengeteka uye ishande nesimba.
Kubva kumabiko emaindasitiri kuenda kumavira emotovoltaic silicon wafer sintering, kubva kumachubhu mahombe emwaranzi kusvika kune anopisa-tembiricha nozzles, masilicon carbide ceramics ari kugadziridza mamiriro etekinoroji eindasitiri yekupisa kwepamusoro-soro nemabhenefiti ayo akazara e "kusimba, kugadzikana, uye kukurumidza kutapurirana". Semupi webasa retekinoroji akabatanidzwa zvakanyanya mumunda weceramics epamberi, isu tinoenderera mberi nekusimudzira budiriro uye hutsva mukuita kwezvinhu, tichibvumira mamwe maindasitiri emidziyo kuchengetedza "yakadzikama uye yakaumbwa" mamiriro ekushanda munzvimbo dzakanyanyisa.
--Kutyora tembiricha yemhando yezvinhu, tinofamba nehunyanzvi!
Nguva yekutumira: Chivabvu-09-2025