Iipropati kunye nosetyenziso oluphambili lwe-reaction-sintered silicon carbide

Iipropati ze-silicon carbide zokusabela kunye nosetyenziso oluphambili? I-silicon carbide inokubizwa ngokuba yi-carborundum okanye isanti engenamlilo, yi-inorganic compound, eyahlulwe ibe yi-silicon carbide eluhlaza kunye ne-silicon carbide ezimbini. Ngaba uyazazi iipropathi kunye nosetyenziso oluphambili lwesilicon carbide? Namhlanje, siza kwazisa iipropati kunye nokusetyenziswa okuphambili kwe-silicon carbide.

I-reactive sintering silicon carbide kukusetyenziswa kwesanti ye-quartz, i-coke ye-petroleum calcined (okanye i-coal coking), i-wood slag (ukuveliswa kwe-silicon carbide eluhlaza idinga ukongeza ityuwa yokutya) kunye nezinye izinto eziluhlaza, ngokusebenzisa isithando somlilo sombane esiqhubekayo sokunyibilika kobushushu obuphezulu.

Iipropati ze-reaction-sintered silicon carbide:

1. I-Thermal conductivity kunye ne-thermal yokwandisa i-coefficient ye-silicon carbide. Njengohlobo lwezinto eziphikisayo, izitena ze-carbonized zinokuchasana okugqwesileyo ukothuka. Oku kubonakaliswa ngokukodwa kwi-conductivity yayo eqinile ye-thermal (i-coefficient yokudlulisa ukushisa) kunye ne-coefficient ephantsi yokwandiswa kwe-thermal.

2, ukuqhuba kwesilicon carbide. I-Silicon carbide yimpahla ye-semiconductor, i-conductivity yayo iyahluka ngohlobo kunye nobuninzi bokungcola okungeniswa kwi-crystallization, kwaye ukuchasana kuphakathi kwe-10-2-1012Ω · cm. Phakathi kwazo, i-aluminiyam, i-nitrogen kunye ne-boron inempembelelo enkulu kwi-conductivity ye-silicon carbide, kunye ne-conductivity ye-silicon carbide kunye ne-aluminiyam eninzi inyuka kakhulu.

3. Ukumelana ne-silicon carbide. Ukumelana nokutshintsha kwe-silicon carbide kunye nokutshintsha kweqondo lobushushu, kodwa ngaphakathi kwinqanaba elithile lobushushu kunye neempawu zeqondo lokushisa le-resistor yesinyithi ziguqulwa. Ubudlelwane phakathi kokuchasana kunye nobushushu be-silicon carbide bunzima ngakumbi. I-conductivity ye-reaction-sintered silicon carbide iyanda ngokunyuka kweqondo lokushisa kwixabiso elithile, kwaye i-conductivity iyancipha xa ubushushu buphakama kwakhona.

Ukusetyenziswa kwe-silicon carbide:

I-1, izixhobo zokunxiba - ezisetyenziselwa ukwenza ivili lesanti, i-sandpaper yokusila, i-whetstone, ivili lokugaya, i-grinding paste kunye neemveliso ze-photovoltaic kwiiseli ze-photovoltaic, iiseli ze-photovoltaic kunye namacandelo okugaya umphezulu, ukugaya kunye nokupolisha.

I-2, i-high-end refractory material - ingasetyenziselwa njenge-deoxidizer ye-metallurgical industry kunye ne-corrosion resistant materials, ukwenza izinto eziqhubekayo zokushisa eziphezulu ze-kiln prefabricated parts, ii-fixed parts, njl.

I-3, i-ceramics esebenzayo - kungekhona nje ukunciphisa umthamo we-kiln, kodwa iphucula umgangatho weemveliso ze-kiln ye-industrial, ukunciphisa ixesha lokujikeleza, iyona nto ifanelekileyo engathanga ngqo ye-ceramic glaze sintering, i-ceramics eqhubekayo yobushushu obuphezulu be-non-oxide, ebonisa i-porcelain ye-sintered.

I-4, isinyithi esinqabileyo - amashishini ensimbi kunye nentsimbi, i-metallurgical industry concentrator field, inesicelo esithile.

I-5, enye - isetyenziselwa ukwenza i-far-infrared radiation coating okanye i-silicon carbide plate far-infrared radiation dryer.

I-silicon carbide ngenxa yeepropathi ezigudileyo zemichiza yendalo, ukuhanjiswa kobushushu obuphezulu, umlinganiso omncinci wokwandiswa komda, ukuxhathisa okufanelekileyo, ukongeza ekunxibeni okuxhathisayo, kukho ezinye izinto eziphambili ezisetyenziswayo, ezinje: ngenkqubo entsha ye-silicon carbide powder glue in. i-centrifugal impeller okanye i-cylinder body cavity, inokuphucula ukuxhatshazwa kokugqoka kunye nokwandisa ubomi benkonzo ye-1 ukuya kwamaxesha ama-2; Isetyenziselwa ukwenza izinto zokumelana nomgangatho ophezulu, ukuxhathisa ukothuka kobushushu obuphezulu, ubungakanani obuncinci, ubunzima obukhanyayo kunye namandla aphezulu, ukhuseleko lokusingqongileyo kunye nefuthe lokonga amandla kuyabonakala. I-silicon carbide ephantsi (equlethe malunga ne-85% ye-SiC) yinto efanelekileyo ye-deoxidizing agent, engasetyenziselwa ukukhawulezisa isantya sokwenza isinyithi, kwaye ilungele ukuguqula ukubunjwa kunye nokuphucula umgangatho wensimbi. Ukongeza, i-silicon carbide ikwasetyenziselwa ukwenza izinto ezininzi zokufudumeza zombane zesilicon molybdenum intonga.