Izitena zeSilicon khabhayithi

Umxholo ophambili wesitena se-silicon carbide yi-SiC, umxholo ngowama-1% -72%. Izitena zeSilicon khabhayithi zisetyenziswa kumashishini ahlukeneyo nakwizixhobo ze-thermal ngenxa yokudityaniswa okungafaniyo. Ngokweendlela ezahlukeneyo zokubopha, abavelisi bezitena ze-silicon carbide bohlulwa babumbane ngodongwe, i-Sialon bonding, i-alumina bonding, i-self bonding, i-aluminium ephezulu ye-bonding, i-silicon nitride bonding, njalo njalo. Zithini izinto ezenziwa ngezitena zesilicon khabhayithi? Zeziphi ezona zicelo ziphambili?

2. Ngenxa yokuba izinto zokwenza izitena ze-silicon carbide yi-silicon carbide, i-silicon carbide, ekwabizwa ngokuba yi-emery, yenziwa kukunyibilikisa kobushushu obuphezulu bezinto ezingafunekiyo ezifana nesanti ye-quartz, icoke, kunye neetshipsi zomthi. I-silicon carbide ihlala isetyenziselwa ukwenza izinto ezihambele phambili ngenxa yeempawu zayo ezizinzileyo zeekhemikhali, ukuqhuba okuphezulu kwe-thermal, umlinganiso ophantsi wokunatyiswa kwe-thermal, kunye nokumelana nokunxiba okuhle.

3. Izitena zeSilicon khabhayithi zicutshungulwa zenziwe ngobushushu obunyibilikisayo kusetyenziswa iimpawu zesilicon khabhayithi ezinjengokumelana nomhlwa, ukumelana nobushushu obuphezulu, amandla aphezulu, ukuqhuba kakuhle kwe-thermal, kunye nokuchasana nefuthe, kwaye zisetyenziswa kwiqondo eliphezulu lobushushu izixhobo ezishushu.

4. Iimveliso ze-silicon carbide zisebenzisa i-silicon carbide njengezinto ezingavuthiyo, yongeza udongwe, i-silicon oxide kunye nezinye izibopheleli zokwenza i-sinter ngo-1350 ukuya ku-1400 ° C. I-silicon carbide kunye ne-silicon powder zinokwenziwa kwiimveliso ze-silicon nitride-silicon carbide kwimo ye-nitrogen kwisithando sombane. Iimveliso zekhabhoni zinokuphindaphindeka kokunyuka okwandayo kwe-thermal, ukuqhuba okuphezulu kwe-thermal, ukuxhathisa okuhle kukothuka, kunye namandla aphezulu obushushu. Ayithambisi emva kokusetyenziswa kwexesha elide kubushushu obuphezulu, ayonakalisi nayiphina i-asidi kunye nealkali, inokumelana netyuwa elungileyo, kwaye ayimanzisiswa sisinyithi kunye ne-slag. Ukukhanya kubunzima kwaye yinto ekumgangatho ophezulu enobushushu obuphezulu obuphathekayo. Ukungancedi kukuba kulula ukwenza ioksijini kubushushu obuphezulu kwaye ayikulungelanga ukusetyenziswa kwimeko yeoksijini. Iimveliso zekhabhoni zisetyenziswa ngokubanzi kumgangatho wokushisa okuphezulu (kwiziko leziko, eziko, kwinxalenye esezantsi yesithando somlilo, njl.

Izalathiso ezinxulumene nomzimba kunye nemichiza yezitena zesilicon khabhayithi: