Reaction sintering silicon carbide inzira yekugadzirira yakakwira kuita zveceramic zvinhu. Inobata uye inotsikirira silicon carbide poda nemamwe makemikari pasi pemamiriro ekushisa kwepamusoro kuti ibudise kukwirira kwepamusoro, kuoma kwepamusoro, kupfeka kwepamusoro uye yakakwirira yekudzivirira zvinhu.
1. Kugadzirira nzira. Iyo yekugadzirira maitiro eiyo reactive sintering silicon carbide kazhinji inosanganisira matanho maviri: kuita uye sintering. Muchikamu chekuita, iyo silicon carbide poda inopindirana nemamwe makemikari patembiricha yakakwira kuti igadzire makomisheni ane nzvimbo dzakadzika dzakanyungudika, senge alumina, boron nitride uye calcium carbonate. Aya makomisheni anogona kuita seanosunga uye mafirita kubatsira kuwedzera kugona kwekubatanidza uye fluidity yesilicon carbide poda uku ichidzikisa pores uye hurema mune izvo zvinhu. Mune sintering nhanho, chinoitwa chigadzirwa chinonyungudutswa pakupisa kwepamusoro kuumba dense ceramic material. Zvinhu zvakadai sekushisa, kudzvanywa uye mhepo yekudzivirira inoda kudzorwa mukuita sintering kuti ive nechokwadi chekuti zvinhu zvine kuita kwakanaka. Iyo yakawanikwa silicon carbide ceramic zvinhu ine hunhu hwekuomarara kwepamusoro, kusimba kwepamusoro, kukwirira kwecorrosion kuramba uye kupfeka kwakanyanya.
2. Properties. Reaction-sintered silicon carbide ine zvakawanda zvakanakisa zvivakwa, zvichiita kuti ishandiswe zvakanyanya muminda yakawanda. Chekutanga, silicon carbide ceramic zvinhu zvine kuomarara kwakanyanya uye inogona kutocheka zvinhu zvakaoma sesimbi. Chechipiri, silicon carbide ceramic zvinhu zvine zvakanaka kupfeka kuramba uye zvinogona kushandiswa kwenguva yakareba pasi pemamiriro ezvinhu akaoma senge tembiricha yakanyanya uye kudzvanywa. Uye zvakare, silicon carbide ceramic zvinhu zvine yakakwira corrosion kuramba uye yakanyanya kugadzikana tembiricha, uye inogona kushandiswa kwenguva yakareba munzvimbo dzinoparadza uye tembiricha yakakwira.
3. Minda yekushandisa. Reaction-sintered silicon carbide inoshandiswa muminda yakawanda. Semuenzaniso, muindasitiri yekugadzira, silicon carbide ceramic zvinhu zvinoshandiswa zvakanyanya mumabrasives, kucheka maturusi uye kupfeka zvikamu. Kuoma kwayo kwepamusoro uye kusagadzika kwekupfeka kunoita kuti ive yakakosha pakucheka, kukuya nekukuya
Ideal for polishing nemamwe minda. Muindasitiri yemakemikari, silicon carbide ceramic zvinhu zvinogona kushandiswa kugadzira makemikari akadai sesulfuric acid uye akasimba asidhi senge hydrofluoric acid nekuda kweiyo yakanyanya kuomarara kuramba uye kupisa kwakanyanya. Mumunda we aerospace uye kudzivirira, silicon carbide ceramic zvinhu zvinogona kushandiswa kugadzira missile casings uye zvinopisa zvinodzivirira zvendege inomhanya. Uye zvakare, silicon carbide ceramic zvinhu zvinogona zvakare kushandiswa mumunda webiomedical wezvakagadzirwa majoini uye orthopedic ekuvhiya zviridzwa, nekuti zvine yakanaka biocompatibility uye kupfeka kuramba.
Reaction sintering silicon carbide inzira yekugadzirira yakakwira kuita zveceramic zvinhu. Inobata uye inotsikirira silicon carbide poda nemamwe makemikari pasi pemamiriro ekushisa kwepamusoro kuti ibudise kukwirira kwepamusoro, kuoma kwepamusoro, kupfeka kwepamusoro uye yakakwirira yekudzivirira zvinhu. Silicon carbide ceramic zvinhu zvine zvimiro zvakanaka, senge kuomarara kwepamusoro, kusagadzika kwepamusoro, kushomeka kwepamusoro uye kugadzikana kwekushisa kwepamusoro, saka inoshandiswa zvakanyanya munzvimbo dzakawanda dzakadai sekugadzira, indasitiri yemakemikari, nhandare yendege uye yekudzivirira uye minda yebiomedical.
Nguva yekutumira: Jul-08-2023