Silicon carbide (SiC) imusanganiswa we covalent wakaumbwa nekabhoni nesilicon uye inozivikanwa nehunyanzvi hwayo hwakanaka, kusanganisira kuramba kupfeka zvakanyanya, kuramba kupisa, kuramba ngura zvakanyanya uye kufambisa kupisa kwakanyanya. Hunhu uhwu hunoita kuti silicon carbide ive chinhu chakanakira kushandiswa kwakasiyana-siyana mumaindasitiri akasiyana-siyana, kusanganisira ndege, kugadzira michina, petrochemicals, kunyungudutsa simbi uye zvemagetsi. Yakakodzera zvakanyanya kugadzirwa kwezvikamu zvisingapfeki uye zvikamu zvechimiro zvinopisa zvakanyanya. Kugadzirwa kwesimbi dzesilicon carbide dzakasanganiswa ne reaction-sintered kwakabatsira zvikuru mukusimudzira mashandisirwo eindasitiri echinhu ichi chinoshandiswa zvakasiyana-siyana.
Nzira yechinyakare yekugadzirazviumbwa zvesimbi zvesilicon carbide zvinogadzirwa ne reaction-sinteredkushandisa upfu hwesilicon carbide hwakasanganiswa nehuwandu hushoma hwecarbon powder. Musanganiswa uyu unopinda mukuita kwesiliconization inodziya zvakanyanya kuti ugadzire chinhu chakasimba checeramic. Zvisinei, hunyanzvi uhu hwechinyakare hahuna matambudziko ahwo. Maitiro ekupisa anoratidzwa nekugara kwenguva refu, kupisa kwakanyanya uye kushandiswa kwesimba rakawanda, zvichikonzera mitengo yakakwira yekugadzira. Sezvo zvinodiwa neindasitiri zvemaumbirwo esilicon carbide ceramic uye mafomu zvichiwedzera kuoma, miganhu yenzira dzechinyakare inowedzera kuoneka.
Mumakore achangopfuura, kuunzwa kwesilicon carbide nanopowders kwave mhinduro inovimbisa yekuvandudza hunhu hwe silicon carbide ceramics. Kushandisa nanopowders kunogona kugadzira ceramics dzine huwandu hwakanyanya hwe sintered uye simba rakakwirira re flexural. Zvisinei, mutengo wesilicon carbide nanopowders wakakwira, kazhinji unodarika 10,000 yuan patani, izvo zvinopa chipingamupinyi chikuru pakugamuchirwa kwakapararira uye kugadzirwa kwakakura. Dambudziko iri rehupfumi rinoda kutsvaga zvimwe zvinhu uye nzira dzekugadzira silicon carbide ceramics zviri nyore uye zvine mutengo wakaderera.
Pamusoro pezvo, kugona kugadzira maumbirwo akaomarara uye zvikamu zvikuru kunovhura nzira itsva dzekushandisa ceramic yesilicon carbide. Maindasitiri anoda magadzirirwo akaomarara uye zvinhu zvinoshanda zvakanyanya anogona kubatsirwa nenzira iyi itsva yekugadzira. Kuchinjika kwedhizaini uye kugona kwekugadzira zvinhu zvakawanda zvesilicon carbide ceramics zvemhando yepamusoro zvinogona kutungamira mukufambira mberi kukuru munzvimbo dzakadai sendege nemagetsi uko kushanda kwezvinhu kwakakosha.
Nguva yekutumira: Mbudzi-09-2024