Tungsten Carbide-Nickel Shin Magnetic ne ko Mara Magnetic?

Tungsten carbide, wanda kuma ake kira cemented carbide, ya ƙunshi tungsten carbide foda da kuma binder foda. A daure foda zai iya zama cobalt foda ko nickel foda. Lokacin da muke amfani da cobalt foda a matsayin mai ɗaure a cikin kera samfuran tungsten carbide, za mu sami gwajin magnetic cobalt don bincika adadin cobalt a cikin tungsten carbide. Don haka tabbas cewa tungsten carbide-cobalt shine Magnetic. Duk da haka, tungsten carbide-nickel ba maganadisu ba ne.

Kuna iya jin rashin imani ne a farkon. Amma gaskiya ne. Tungsten carbide-nickel wani nau'i ne na kayan da ba na maganadisu ba tare da juriya mai kyau. A cikin wannan labarin, zan so in bayyana muku wannan.

Kamar yadda tsarkakakkun karafa, cobalt da nickel suna maganadisu. Bayan haɗawa, latsawa, da kuma haɗawa da tungsten carbide foda, tungsten carbide-cobalt har yanzu magnetic ne, amma tungsten carbide-nickel ba haka bane. Wannan shi ne saboda ƙwayoyin tungsten suna shiga cikin lattice na nickel kuma suna canza nau'in electron na nickel. Sa'an nan electron spins na tungsten carbide iya soke fita. Don haka, tungsten carbide-nickel ba zai iya jawo hankalin magnet ba. A cikin rayuwarmu ta yau da kullun, bakin karfe shima yana amfani da wannan ka'ida.

Menene electron spin? Electron spin yana daya daga cikin abubuwan da ke tattare da electrons guda uku. Sauran kaddarorin guda biyu su ne taro da cajin lantarki.

Yawancin abubuwa sun kunshi kwayoyin halitta, kwayoyin halitta sun hada da atom, kuma kwayoyin halitta sun hada da kwayoyin halitta da electrons. A cikin atom ɗin, electrons koyaushe suna jujjuyawa da jujjuyawa a kewayen tsakiya. Wadannan motsi na electrons na iya haifar da maganadisu. A wasu abubuwa, electrons suna motsawa ta hanyoyi daban-daban, kuma tasirin maganadisu na iya sokewa ta yadda waɗannan abubuwa ba su da ƙarfi a ƙarƙashin yanayi na yau da kullun.

Koyaya, wasu abubuwa na ferromagnetic kamar ƙarfe, cobalt, nickel, ko ferrite sun bambanta. Za a iya shirya jujjuyawar su ta lantarki a cikin ƙaramin kewayo don samar da yankin maganadisu. Wannan shine dalilin da ya sa tsarkakakkun cobalt da nickel suna maganadisu kuma ana iya jan hankalin su ta hanyar maganadisu.

A cikin tungsten carbide-nickel, tungsten atom suna shafar electron spins na nickel, don haka tungsten carbide-nickel ba maganadisu ba ne kuma.

Bisa ga sakamakon kimiyya da yawa, tungsten carbide-nickel yana da mafi girman juriya na lalata da juriya da iskar shaka fiye da tungsten carbide-cobalt. A sintering, nickel iya samar da wani ruwa lokaci sauƙi, wanda zai iya samar da mafi kyau rigar ikon a kan tungsten carbide saman. Menene ƙari, nickel yana da ƙarancin farashi fiye da cobalt.

Idan kuna sha'awar samfuran carbide tungsten kuma kuna son ƙarin bayani da cikakkun bayanai, zaku iya tuntuɓar mu ta waya ko wasiƙa a hagu, ko Aika wasiƙun Amurka a kasan shafin.