Sintered silicon carbide chinhu chakakosha checeramic, chinoshandiswa zvakanyanya munzvimbo dzinopisa zvakanyanya, dzine pressure yakakwira uye dzine simba rakawanda. Reactive sintering yeSIC idanho guru mukugadzirira zvinhu zveSIC zvakapfava. Kudzora kwakanakisa kweSIC reaction kunogona kutibatsira kudzora mamiriro e reaction uye kuvandudza mhando yechigadzirwa. Nzira yepamusoro yekudzora yesintered silicon carbide reaction inokurukurwa mupepa rino.
1. Kugadzirisa mamiriro eSIC anokonzeresa reaction sintering
Mamiriro ekuita reaction ndiwo ma parameter akakosha ekuita reaction ye silicon carbide, kusanganisira tembiricha ye reaction, kumanikidzwa kwe reaction, reactant mass ratio uye nguva ye reaction. Pakugadzirisa mamiriro ekuita reaction, zvakakosha kugadzirisa zvinoenderana nezvinodiwa zvekushandisa uye maitiro ekuita reaction.
(1) Kupisa kwemhinduro: Kupisa kwemhinduro ndeimwe yezvinhu zvikuru zvinokanganisa kumhanya kwemhinduro uye kunaka kwechigadzirwa. Mune imwe nzvimbo, kana tembiricha yemhinduro yakakwira, kukurumidza kwemhinduro, kunaka kwechigadzirwa kwakakwira. Zvisinei, kupisa kwakanyanya kwemhinduro kunotungamira mukuwedzera kwemaburi nemaburi muchigadzirwa, zvichikanganisa kunaka kwechigadzirwa.
(2) Kumanikidzwa kwemhinduro: Kumanikidzwa kwemhinduro kunewo simba pakumhanya kwemhinduro uye kuwanda kwechigadzirwa. Mukati mehuwandu hwakati, kumanikidzwa kwemhinduro kwakakwira, kukurumidza kwemhinduro uye kuwanda kwechigadzirwa kwakakwira. Zvisinei, kumanikidzwa kwakanyanya kwemhinduro kunogonawo kukonzera maburi akawanda uye maburi muchigadzirwa.
(3) chiyero chehuwandu hwe reactant: chiyero chehuwandu hwe reactant chimwe chinhu chakakosha chinokanganisa kumhanya kwe reaction uye mhando yechigadzirwa. Kana chiyero checarbon to silicon mass chakakodzera, chiyero che reaction uye huwandu hwechigadzirwa. Kana chiyero chehuwandu hwe reactant chisina kukodzera, chinokanganisa chiyero che reaction uye huwandu hwechigadzirwa.
(4) Nguva yekuita: Nguva yekuita chimwe chezvinhu zvinokanganisa kumhanya kwekuita uye kunaka kwechigadzirwa. Mukati menguva yakati, nguva yekuita inoreba, kumhanya kwekuita kunononoka uye kunaka kwechigadzirwa kunowedzera. Zvisinei, nguva yakareba yekuita inotungamira mukuwedzera kwemaburi nemaburi muchigadzirwa, zvichikanganisa kunaka kwechigadzirwa.
2. Kudzora maitiro e reactive sintering silicon carbide
Mukuita kwekuita kuti SIC reaction iite seyakanyangarika, zvakakosha kudzora maitiro ekuita. Chinangwa chekudzora ndechekuona kuti maitiro acho agadzikana uye kuti mhando yechigadzirwa inoenderana. Kudzora maitiro ekuita kunosanganisira kudzora tembiricha, kudzora kumanikidzwa, kudzora mhepo uye kutonga mhando ye reactant.
(1) Kudzora tembiricha: Kudzora tembiricha chimwe chezvinhu zvakakosha pakudzora maitiro ekuita. Kudzora tembiricha Tembiricha yekuita inofanira kudzorwa zvakanyatsonaka kuti ive nechokwadi chekuti maitiro ekuita agadzikana uye mhando yechigadzirwa inoenderana. Mukugadzirwa kwemazuva ano, sisitimu yekudzora komputa inowanzo shandiswa kudzora tembiricha yekuita.
(2) Kudzora kumanikidzwa: Kudzora kumanikidzwa chimwe chinhu chakakosha pakudzora maitiro ekuita. Nekudzora kumanikidzwa kwekuita, kugadzikana kwemaitiro ekuita uye kugara zvakanaka kwemhando yechigadzirwa kunogona kuvimbiswa. Mukugadzirwa kwemazuva ano, sisitimu yekudzora komputa inowanzo shandiswa kudzora kumanikidzwa kwekuita nemazvo.
(3) Kudzora mhepo: Kudzora mhepo kunoreva kushandiswa kwemhepo chaiyo (senge mhepo isina simba) mukuita kwekuita kuti pave nekuita kwekuita. Nekudzora mhepo, kugadzikana kwekuita kwekuita uye kugara zvakanaka kwemhando yechigadzirwa kunogona kuvimbiswa. Mukugadzirwa kwemazuva ano, sisitimu yekudzora komputa inowanzo shandiswa kudzora mhepo.
(4) Kudzora hunhu hweReactant: Kudzora hunhu hweReactant chimwe chezvinhu zvakakosha kuti pave nechokwadi chekuti maitiro ereactant agadzikana uye kuti hunhu hwechigadzirwa hunoramba huripo. Nekudzora hunhu hwereactants, kugadzikana kwemaitiro ereactant uye kuti hunhu hwechigadzirwa hunogara huripo kunogona kuvimbiswa. Mukugadzirwa kwemazuva ano, sisitimu yekudzora komputa inowanzo shandiswa kudzora hunhu hwereactants.
Kudzora kwakakodzera kwe reactive sintering SIC idanho guru rekugadzirira zvinhu zve SIC zvemhando yepamusoro. Nekugadzirisa mamiriro e reaction, kudzora maitiro e reaction uye kutarisa zvigadzirwa zve reaction, kugadzikana kwe reaction process uye kuenderana kwemhando yechigadzirwa kunogona kuve nechokwadi. Mukushandiswa kwakakodzera, reaction ye sintered silicon carbide inofanirwa kugadziriswa zvichienderana nemamiriro chaiwo ekushandiswa kuti isangane nezvinodiwa zvakasiyana zvekushandisa.
Nguva yekutumira: Chikumi-05-2023