I-Tungsten Carbide-Nickel Ingabe I-Magnetic noma Ayinamagnetic?

I-Tungsten carbide, ebizwa nangokuthi i-cemented carbide, yenziwe nge-tungsten carbide powder kanye ne-binder powder. I-binder powder ingaba yi-cobalt powder noma i-nickel powder. Uma sisebenzisa i-cobalt powder njengesibophezelo ekukhiqizeni imikhiqizo ye-tungsten carbide, sizoba nokuhlolwa kazibuthe kwe-cobalt ukuze sihlole inani le-cobalt ku-tungsten carbide. Ngakho-ke ngokuqinisekile ukuthi i-tungsten carbide-cobalt iyizibuthe. Kodwa-ke, i-tungsten carbide-nickel ayiyona magnetic.

Ungase ube nomuzwa wokuthi akukholakali ekuqaleni. Kodwa kuyiqiniso. I-Tungsten carbide-nickel iwuhlobo lwezinto ezingezona uzibuthe ezinokumelana okuhle komthelela. Kulesi sihloko, ngithanda ukukuchazela lokhu.

Njengezinsimbi ezihlanziwe, i-cobalt ne-nickel zikazibuthe. Ngemva kokuxuba, ukucindezela, nokucwilisa nge-tungsten carbide powder, i-tungsten carbide-cobalt isekazibuthe, kodwa i-tungsten carbide-nickel ayinjalo. Lokhu kungenxa yokuthi ama-athomu e-tungsten angena ku-lattice ye-nickel futhi ashintshe ama-electron spins e-nickel. Khona-ke ama-electron spins we-tungsten carbide angakhansela. Ngakho-ke, i-tungsten carbide-nickel ayikwazi ukukhangwa uzibuthe. Ezimpilweni zethu zansuku zonke, insimbi engagqwali nayo iyasebenza lesi simiso.

Iyini i-electron spin? I-Electron spin ingenye yezakhiwo ezintathu zemvelo zama-electron. Ezinye izakhiwo ezimbili ubukhulu kanye nokushaja kwe-electron.

Izinto eziningi zakhiwa ama-molecule, ama-athomu akhiwa ama-athomu, futhi ama-athomu akhiwe ngama-nuclei nama-electron. Kuma-athomu, ama-electron ahlala ejikeleza futhi ezungeza i-nucleus. Lokhu kunyakaza kwama-electron kungakha i-magnetism. Kwezinye izinto, ama-electron ahamba aye ezinhlangothini ezahlukene, futhi imiphumela kazibuthe ingakhansela ukuze lezi zinto zingabi kazibuthe ngaphansi kwezimo ezivamile.

Kodwa-ke, ezinye izinto ze-ferromagnetic ezifana nensimbi, i-cobalt, i-nickel, noma i-ferrite zihlukile. Ama-electron spins awo angahlelwa ebangeni elincane ukuze akhe isizinda kazibuthe. Yingakho i-cobalt ehlanzekile ne-nickel ikazibuthe futhi ingakhangwa uzibuthe.

Ku-tungsten carbide-nickel, ama-athomu e-tungsten athinta ama-electron spins e-nickel, ngakho-ke i-tungsten carbide-nickel ayisenawo uzibuthe.

Ngokwemiphumela eminingi yesayensi, i-tungsten carbide-nickel inokumelana nokugqwala okuphezulu kanye nokumelana ne-oxidation kune-tungsten carbide-cobalt. Lapho i-sintering, i-nickel ingenza isigaba se-liquid kalula, esinganikeza ikhono elingcono lokumanzi ezindaweni ze-tungsten carbide. Ngaphezu kwalokho, i-nickel iphansi ngezindleko kune-cobalt.

Uma unentshisekelo emikhiqizweni ye-tungsten carbide futhi ufuna ulwazi olwengeziwe nemininingwane, UNGATHI XHUMANA NATHI ngocingo noma ngemeyili kwesokunxele, noma SITHUMELE IMEYILI ezansi nekhasi.