Ibyiza bya karubide ya silicon yongeye gushyirwaho
Carbide ya silicon yongeye gushyirwaho (R-SiC) ni ibikoresho bikora cyane hamwe n'ubukomezi bwa kabiri nyuma ya diyama, ikorwa ku bushyuhe buri hejuru ya 2000 ℃. Igumana ibintu byinshi byiza bya SiC, nkimbaraga zubushyuhe bwo hejuru, kurwanya ruswa ikomeye, kurwanya okiside nziza, kurwanya ubushyuhe bwumuriro nibindi.
Properties Ibikoresho byiza bya mashini. Carbide yongeye gushyirwaho karbide ifite imbaraga nubukomezi kurenza fibre ya karubone, irwanya ingaruka nyinshi, irashobora gukina imikorere myiza mubushuhe bukabije, irashobora gukina imikorere iringaniza mubihe bitandukanye. Mubyongeyeho, ifite kandi ihinduka ryiza kandi ntabwo yangiritse byoroshye kurambura no kunama, bitezimbere cyane imikorere yayo.
Resist Kurwanya ruswa. Carbide ya silicon yongeye gushyirwaho ifite imbaraga nyinshi zo kurwanya ruswa yibitangazamakuru bitandukanye, irashobora gukumira isuri yibitangazamakuru bitandukanye byangirika, irashobora kugumana imiterere yubukanishi igihe kirekire, ifatanye cyane, kuburyo ifite ubuzima burebure. Mubyongeyeho, ifite kandi ubushyuhe bwiza bwumuriro, irashobora guhuza nurwego runaka rwubushyuhe, kunoza ingaruka zikoreshwa.
Sin Sinteri ntigabanuka. Kuberako inzira yo gucumura itagabanuka, ntagahato gasigaye kazatera guhindagurika cyangwa gucika kubicuruzwa, kandi ibice bifite imiterere igoye kandi byuzuye birashobora gutegurwa.
Ibipimo bya tekiniki:
Urupapuro rwibikoresho
材料 Ibikoresho | R-SiC |
使用温度Ubushyuhe bwo gukora (°C) | 1600 ° C (氧化气氛Oxidizing ibidukikije) 1700 ° C (还原气氛Kugabanya ibidukikije) |
SiC含量Ibirimo bya SiC (%) | > 99 |
自由Si含量Ibirimo Si kubuntu (%) | <0.1 |
体积密度Ubucucike bwinshi (g / cm3) | 2.60-2.70 |
气孔率Ikigaragara ni uko (%) | <16 |
抗压强度Imbaraga zo kumenagura (MPa) | > 600 |
常温抗弯强度Imbaraga zikonje (MPa) | 80-90 (20 ° C) |
高温抗弯强度Imbaraga zishyushye (MPa) | 90-100 (1400 ° C) |
热膨胀系数 Coefficient yo kwagura ubushyuhe @ 1500 ° C (10-6 / ° C) | 4.70 |
导热系数Amashanyarazi yumuriro @ 1200°C (W / m•K) | 23 |
杨氏模量Modulus (GPa) | 240 |
抗热震性Kurwanya ubushyuhe | 很好Nibyiza cyane |