Kev paub yooj yim ntawm cov khoom titanium thiab cov khoom muaj zog tshwj xeeb

Titanium yog ib yam khoom uas muaj atomic tooj 22 nyob rau hauv lub sij hawm lub sij hawm, ib pab pawg neeg lub caij ntawm lub thib plaub lub voj voog, NB pawg (tseem hu ua titanium subgroup), uas muaj zirconium thiab hafnium ntxiv rau titanium, thiab yog cov yam ntxwv ntawm ntau yam siab melting point, thiab siab corrosion kuj vim yog tsim ib tug ruaj khov oxide zaj duab xis ntawm nws nto ntawm chav tsev kub. Titanium yog ib yam hlau uas tsis tshua muaj, qhov abundance nyob rau hauv lub ntiaj teb crust accounted rau lub xya, 0.42%.

Titanium muaj ib tug hlau luster thiab yog ductile. Qhov ceev ntawm 4.5g / cm3, melting point ntawm 1668 degree, boiling point ntawm 3287 degree. Lub valence +2, +3 thiab +4, ionization zog yog 6.82 eV. Cov yam ntxwv tseem ceeb ntawm titanium yog qhov ntom ntom, siab zog, yooj yim rau kev ua haujlwm. Lub plasticity ntawm titanium feem ntau yog nyob ntawm tes purity. Qhov purer lub titanium, ntau dua lub plasticity. Nws muaj zoo corrosion kuj.

Kaum tus yam ntxwv tseem ceeb ntawm titanium: ① me me, lub zog siab, lub zog tshwj xeeb; ② corrosion kuj; ③ tiv thaiv tshav kub zoo; ④ kev ua haujlwm kub tsis zoo; ⑤ tsis-magnetic; ⑥ thermal conductivity yog me me; ⑦ me me modulus ntawm elasticity; ⑧ tensile zog thiab yield zog ze rau; ⑨ titanium ntawm qhov kub thiab txias yog yooj yim oxidized; ⑩ tsis kam tiv thaiv damping zog.

Titanium ceev yog 4.5g / cm3, 57% ntawm steel; titanium tsawg dua ob zaug hnyav dua li txhuas, peb zaug muaj zog dua li txhuas. Lub zog tshwj xeeb uas yog qhov sib piv ntawm lub zog thiab qhov ntom ntom, thiab cov ntaub ntawv sib txawv rau kev sib piv, titanium alloy tshwj xeeb lub zog yog yuav luag qhov loj tshaj plaws ntawm cov khoom siv feem ntau siv. Lub zog tshwj xeeb ntawm titanium alloy yog 3.5 npaug ntawm cov hlau tsis muaj steel, 1.3 npaug ntawm aluminium alloy, thiab 1.7 npaug ntawm magnesium alloy, yog li nws yog ib qho khoom siv tsis tseem ceeb rau kev lag luam aerospace.