I-Silicon Carbide, eyaziwa nangokuthi i-carborundum, iyinhlanganisela ye-silicon-carbon. Lesi sakhi samakhemikhali siyingxenye ye-mineral moissanite. Ifomu lemvelo le-Silicon Carbide liqanjwe ngoDkt Ferdinand Henri Moissan, usokhemisi waseFrance. I-Moissanite ivame ukutholakala ngamanani amaminithi kuma-meteorites, kimberlite, ne-corundum. Ngale ndlela iningi lezohwebo leSilicon Carbide lenziwa ngayo. Yize iSilicon Carbide eyenzeka ngokwemvelo kunzima ukuyithola Emhlabeni, iningi emkhathini.

Ukuhlukahluka kweSilicon Carbide

Imikhiqizo ye-Silicon Carbide yenziwa ngezindlela ezine ukuze isetshenziswe kuzicelo zobunjiniyela bezentengiselwano. Lezi zihlanganisa

I-Sintered Silicon Carbide (SSiC)

I-Reaction Bonded Silicon Carbide (RBSiC noma i-SiSiC)

I-Nitride eboshwe i-Silicon Carbide (NSiC)

I-Recrystallized Silicon Carbide (RSiC)

Okunye ukuhlukahluka kwebhondi kufaka phakathi i-SIALON eboshiwe i-Silicon Carbide. Kukhona ne-CVD Silicon Carbide (CVD-SiC), okuwuhlobo olumsulwa ngokwedlulele lwenhlanganisela ekhiqizwe ukufakwa komhwamuko wamakhemikhali.

Ukuze wenze i-sinter Silicon Carbide, kuyadingeka ukuthi ungeze izinsiza zokuhlanganisa ezisiza ukwakha isigaba soketshezi emazingeni okushisa e-sintering, okuvumela okusanhlamvu kwe-Silicon Carbide ukuthi kuhlangane ndawonye.

Izici ezibalulekile zeSilicon Carbide

I-conductivity ephezulu ye-thermal kanye ne-coefficient ephansi yokwandisa okushisayo. Le nhlanganisela yezakhiwo inikeza ukumelana nokushaqeka okushisayo, okwenza izitsha zobumba zeSilicon Carbide zibe usizo ezinhlobonhlobo zezimboni. Iphinde ibe yi-semiconductor futhi izakhiwo zayo zikagesi ziyenza ifanelekele uhla olubanzi lwezinhlelo zokusebenza. Yaziwa nangobulukhuni bayo obudlulele kanye nokumelana nokugqwala.

Izicelo zeSilicon Carbide

I-Silicon Carbide ingasetshenziswa ezinhlobonhlobo zezimboni.

Ukuqina kwayo ngokomzimba kuyenza ifanelekele izinqubo zokugaya, ukucisha, ukuqhunyiswa kwesihlabathi, nokusika i-waterjet.

Ikhono le-Silicon Carbide lokumelana namazinga okushisa aphakeme kakhulu ngaphandle kokuqhekeka noma ukonakala lisetshenziswa ekwenzeni ama-ceramic brake discs ezimoto zezemidlalo. Ibuye isetshenziswe njengempahla yezikhali kumavesti angangenwa izinhlamvu nanjengendandatho yokuvala izigxivizo ze-pump shaft, lapho ivamise ukugijima ngesivinini esikhulu ithintana ne-Silicon Carbide seal. I-Thermal conductivity ephezulu ye-Silicon Carbide, ekwazi ukuqeda ukushisa okushayisanayo okukhiqizwa isixhumi esibonakalayo sokuhlikihla, kuyinzuzo enkulu kulezi zinhlelo zokusebenza.

Ngenxa yokuqina okuphezulu kwendawo yezinto ezibonakalayo, isetshenziswa ezinhlelweni eziningi zobunjiniyela lapho amazinga aphezulu okumelana nokushelela, ukuguguleka nokugqwala okudingekayo. Ngokuvamile, lokhu kusebenza ezingxenyeni ezisetshenziswa kumaphampu noma ama-valve ezinsizeni zikawoyela, lapho izingxenye zensimbi ezivamile zingabonisa amanani okuguga adlulele okuholela ekuhlulekeni okusheshayo.

Izakhiwo zikagesi ezihlukile zekhompiyutha njenge-semiconductor ziyenza ilungele ukukhiqiza ama-diode akhipha ukukhanya asheshayo naphezulu, ama-MOSFET, nama-thyristors ukuze kushintshwe amandla amakhulu.

I-coefficient yayo ephansi yokunwebeka okushisayo, ubulukhuni, ukuqina, kanye nokuhanjiswa kwe-thermal kuyenza ilungele izibuko zesibonakude sezinkanyezi. I-Thin filament pyrometry iyindlela yokubona esebenzisa imicu ye-Silicon Carbide ukukala izinga lokushisa lamagesi.

Ibuye isetshenziselwe ekushiseni izakhi okumele zimelane namazinga okushisa aphezulu kakhulu. Iphinde isetshenziselwe ukuhlinzeka ngosekelo lwesakhiwo kumareactor enuzi apholile ngegesi.