Tungsten muaj qis tshaj coefficient ntawm thermal expansion ntawm tej yam hlau ntshiab. Qhov qis thermal expansion thiab siab melting point thiab tensile lub zog ntawm tungsten pib los ntawm muaj zog hlau bonds tsim ntawm tungsten atoms los ntawm 5d electrons.
Vim li cas tungsten thiaj li melting point ntau tshaj?
Tungsten muaj qis tshaj coefficient ntawm thermal expansion ntawm tej yam hlau ntshiab. Qhov qis thermal expansion thiab siab melting point thiab tensile lub zog ntawm tungsten pib los ntawm muaj zog hlau bonds tsim ntawm tungsten atoms los ntawm 5d electrons.
Dab tsi muaj qhov melting ntau dua li tungsten?
Lub ntsiab lus tsuas yog paub nrog lub ntsiab lus melting siab dua tungsten yog carbon, ntawm 6422 ° F (3550 ° C). Txawm li cas los xij, txawm tias cov pa roj carbon tsis tuaj yeem siv los tuav cov kua tungsten, vim tias nyob rau qhov kub thiab txias, ob yuav hnov mob tsim tungsten carbide.
Vim li cas pob zeb diamond thiab tungsten muaj qhov sib txawv siab?
Carbon bonds rau lwm cov ntsiab lus sib raug zoo, thiab qhov tseem ceeb tshaj plaws yog carbon muaj peev xwm sib txuas rau lwm cov pa roj carbon atom ua cov saw ntev. Lawv yog cov qauv ruaj khov tiag tiag. Muaj ntau ntau carbon-carbon bonds hauv pob zeb diamond. Yog li nws yuav siv ntau lub zog los "kua" nws.
Yuav ua li cas yog qhov nyuaj tshaj plaws?
Tungsten yog lub npe hu ua ib qho nyuaj tshaj plaws nyob rau hauv qhov xwm txheej. Nws yog super ntom thiab yuav luag tsis yooj yim sua kom yaj. Ntshiab tungsten yog cov hlau dawb-dawb thiab thaum ua rau hauv cov hmoov zoo tuaj yeem hlawv thiab tuaj yeem ua rau hluav taws kub. Ntuj tungsten muaj tsib isotopes ruaj khov thiab 21 lwm cov isotopes tsis ruaj khov.
