Silicon carbide inoita kunge dhaimani. Haisi chete chinhu chakareruka, asiwo chinhu chakaoma zvikuru checeramic uye ine thermal conductivity yakanaka, ine thermal expansion yakaderera uye inodzivirira zvikuru acids ne lyes.
Ne silicon carbide ceramics, hunhu hwechinhu hunoramba hwakafanana kusvika patembiricha iri pamusoro pe1,400°C. Iyo high Young's modulus > 400 GPa inoita kuti ive yakasimba zvakanyanya. Hunhu hwechinhu ichi hunoita kuti silicon carbide ive yakagadzirirwa kushandiswa sechinhu chekuvaka. Silicon carbide inokwanisa kukunda ngura, kukwesha uye kukurwa kwevhu neunyanzvi sezvainotsungirira kukweshana. Zvikamu zvinoshandiswa mumiti yemakemikari, mill, expanders uye extruders kana se nozzles, semuenzaniso.
"Misiyano yeSSiC (sintered silicon carbide) neSiSiC (silicon infiltrated silicon carbide) yazvigadzira. Iyi yekupedzisira yakakodzera zvikuru kugadzirwa kwezvinhu zvakaoma zvikuru."
Silicon carbide yakachengeteka pakurapa chepfu uye inogona kushandiswa muindasitiri yechikafu. Imwe nzira yakajairika yekushandisa zvikamu zvesilicon carbide tekinoroji yekusimbisa dynamic inoshandisa mabearings ekukweshana uye zvisimbiso zvemakanika, semuenzaniso mumapombi uye masisitimu ekutyaira. Kana ichienzaniswa nesimbi, silicon carbide inogonesa mhinduro dzinodhura zvakanyanya uye dzinogara kwenguva refu kana dzichishandiswa nemidziyo yemagetsi inodziya uye inopisa. Zvigadzirwa zveSilicon carbide zvakanakirawo kushandiswa mumamiriro ezvinhu akaomarara mukugadzira zvinhu zvesimbi, kugadzira makemikari, tekinoroji yesimba, kugadzira mapepa uye sezvikamu zvemasisitimu emapaipi.
Reaction bonded silicon carbide, inozivikanwawo sesiliconized silicon carbide kana SiSiC, imhando yesilicon carbide inogadzirwa nemakemikari anokonzerwa nekabhoni ine porous kana graphite ine silicon yakanyungudutswa. Nekuda kwekusaririra kwesilicon, reaction bonded silicon carbide inowanzonzi siliconized silicon carbide, kana kuti chidimbu chayo cheSiSiC.
Kana silicon carbide yakachena ichigadzirwa nekusvina upfu hwesilicon carbide, inowanzova nemakemikoro anonzi sintering aids, ayo anowedzerwa kutsigira maitiro ekusvina nekubvumira tembiricha shoma yekusvina. Rudzi urwu rwesilicon carbide runowanzonzi sintered silicon carbide, kana kupfupikiswa kunzi SSiC.
Upfu hwesilicon carbide hunowanikwa kubva kusilicon carbide inogadzirwa sezvakatsanangurwa munyaya inonzi silicon carbide.
（Viewed from: CERAMTEC）caroline@rbsic-sisic.com
Nguva yekutumira: Mbudzi-12-2018