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Njia za kutuliza na matumizi ya kauri za kawaida za silicon carbide

Sep 12, 2022

Njia ya kukera ya athari ya SIC ilisomeshwa kwanza kwa mafanikio huko Merika . mchakato wa athari ya athari ni kama ifuatavyo: kwanza - SIC poda na poda ya grafiti imechanganywa kwa sehemu, na mwili wa kijani kibichi hufanywa na kushinikiza, extrusion au grout {{1} wakati wa kushughulikiwa na joto la kawaida, kwa sababu ya joto, extsion au greut {1} wakati wa kushughulikiwa na joto, cupt cement form form form form form form form form form form form form form form form form form form form form form form form form form form for form for form for for form for for for for for for for.. Sic, na kwa - sic imejumuishwa, na si ya ziada imejazwa kwenye pores, na hivyo kupata mwili usio na mnene na mnene wa mwili . majibu ya sinter kawaida huwa na 8% bure si {{4} kwa hivyo, ili kuhakikisha kuwa kamili kwa kuficha, kusudi}} ya SIC na C, - Ugawaji wa ukubwa wa chembe ya SIC, sura na saizi ya chembe ya C, na shinikizo la ukingo linaweza kutumiwa kupata wiani unaofaa wa kijani .




Majaribio yanaonyesha kuwa kauri za SIC zilizo na kukera bila kushinikiza, kushinikiza moto, moto wa kusukuma moto na athari ya athari zina sifa tofauti za utendaji Tabia za mitambo ya kauri za SIC pia ni tofauti na viongezeo tofauti vya kukera . sintering isiyo na nguvu, kushinikiza moto na athari za kutuliza kauri za SIC zina upinzani mzuri kwa asidi kali na alkali, lakini majibu ya sic ya chini ya kiwango cha chini cha joto kama kiwango cha joto cha kiwango cha juu cha HF {3} inaboreshwa; When the temperature exceeds 1400℃, the bending strength of reaction sintered SiC ceramics decreases sharply. (this is because the sintered body contains a certain amount of free Si, and the bending strength drops sharply when it exceeds a certain temperature.) for SiC ceramics sintered by pressureless sintering and hot isostatic pressing, the high-temperature resistance is mainly kuathiriwa na aina ya nyongeza


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