I-Tungsten inendawo ephakeme kakhulu yokuncibilika kuzo zonke izinsimbi. Iphuzu layo lokuncibilika lilinganiselwa ku-3,422 degrees Celsius (6,192 degrees Fahrenheit). Iphuzu lokuncibilika eliphakeme kakhulu le-Tungsten lingabangelwa izici ezimbalwa ezibalulekile:

1. Amabhondi ensimbi aqinile: Ama-athomu e-Tungsten akha amabhondi ensimbi aqinile namanye, akha uhlaka oluqinile noluqinile lwe-lattice. Lawa mabhondi ensimbi aqinile adinga inani elikhulu lamandla ukuze aphuke, okuholela endaweni yokuncibilika kwe-tungsten ephezulu.

2. Ukucushwa kwe-elekthronikhi: Ukumiswa kwe-electronic kwe-tungsten kudlala indima ebalulekile endaweni yayo ephezulu yokuncibilika. I-Tungsten inama-electron angu-74 ahlelwe ku-orbitals yayo ye-athomu futhi inezinga eliphezulu lokuhlukaniswa kwama-electron, okuholela ekuhlanganisweni kwensimbi okuqinile namandla aphezulu okuhlangana.

3. Isisindo se-athomu esiphezulu: I-Tungsten inesisindo se-athomu esiphezulu uma kuqhathaniswa, esinomthelela ekusebenzisaneni kwayo okuqinile kwe-interatomic. Inani elikhulu lama-athomu e-tungsten liphumela ezingeni eliphezulu le-inertia nokuzinza ngaphakathi kwe-crystal lattice, edinga inani elikhulu lokufakwa kwamandla ukuze kuphazamiseke isakhiwo.

4. Izakhiwo eziphikisayo: I-Tungsten ihlukaniswa njengensimbi ephikisayo futhi yaziwa ngokumelana nokushisa okuhle kakhulu nokumelana nokugqoka. Iphuzu layo eliphezulu lokuncibilika liwuphawu oluchazayo lwezinsimbi eziphikisayo, okulenza libe wusizo ekusetshenzisweni ezindaweni ezinezinga lokushisa eliphezulu.

5. I-Crystal Structure: I-Tungsten inesakhiwo sekristalu esigxile emzimbeni (BCC) endaweni yokushisa yegumbi, okunomthelela ekuncibilikeni kwayo okuphezulu. Ukuhlelwa kwama-athomu esakhiweni se-BCC kunikeza ukusebenzisana okuqinile kwe-interatomic, okuthuthukisa ikhono lezinto ezibonakalayo lokumelana nezinga lokushisa eliphezulu.

I-Tungsten inendawo ephakeme kakhulu yokuncibilika kuzo zonke izinsimbi ngenxa yenhlanganisela yayo emangalisayo yamabhondi ensimbi aqinile, ukumiswa kwama-electron, isisindo se-athomu, kanye nesakhiwo sekristalu. Lesi sakhiwo esikhethekile senza i-tungsten ibaluleke kakhulu ezinhlelweni ezidinga okokusebenza ukuze kugcinwe ubuqotho besakhiwo emazingeni okushisa aphezulu kakhulu, njenge-aerospace, othintana nabo kagesi kanye nezingxenye zesithando somlilo esishisa kakhulu.

I-Molybdenum inesakhiwo sekristalu esigxile emzimbeni ku-cubic (BCC) ezingeni lokushisa legumbi. Kuleli lungiselelo, ama-athomu e-molybdenum atholakala emakhoneni nasenkabeni ye-cube, enza isakhiwo se-lattice esime kakhulu futhi esihlanganiswe ngokuqinile. Isakhiwo sekristalu se-Molybdenum's BCC sisiza ukukhulisa amandla ayo, i-ductility kanye nokumelana nokushisa okuphezulu, okwenza kube yinto ebalulekile yezinhlelo zokusebenza ezihlukene zezimboni, okuhlanganisa i-aerospace, izithando zokushisa eziphezulu kanye nezingxenye zesakhiwo ezimelana nezimo ezimbi kakhulu.