鐵鈷鎳都是磁性物質 那麼 請問是哪種元素磁力最強呢？
2006-04-09 14:58:40 · 3 個解答 · 發問者 可風 5 in 科學 ➔ 化學
由下表的Remanent Flux Density,我們可以知道磁力是 鐵 >鈷 >鎳Magnetic Properties of Ferromagnetic Materials MaterialTreatmentInitial RelativePermeabilityMaximum RelativePermeabilityCoerciveForce(oersteds)Remanent FluxDensity(gauss)Iron, 99.8% pureAnnealed15050001.013,000Iron, 99.95% pureAnnealed in hydrogen10,000200,0000.0513,00078 PermalloyAnnealed, quenched8,000100,000.057,000SuperpermalloyAnnealed in hydrogen, controlled cooling100,0001,000,0000.0027,000Cobalt, 99% pureAnnealed70250105,000Nickel, 99% pureAnnealed1106000.74,000Steel, 0.9% CQuenched501007010,300Steel, 30% CoQuenched......2409,500Alnico 5Cooled in magnetic field4...57512,500SilmanalBaked......6,000550Iron, fine powderPressed......4706,000
2006-04-09 17:42:52 · answer #1 · answered by emcsolution 7 · 0⤊ 0⤋
音樂是我這個發問者用的..
音樂是海尼根的廣告曲
2006-04-10 19:14:12 · answer #2 · answered by 可風 5 · 0⤊ 0⤋
這位大師還真是高深阿
佩服佩服
2006-04-09 22:17:02 補充：
這位大師還真是高深阿
佩服佩服
2006-04-09 18:16:57 · answer #3 · answered by ? 3 · 0⤊ 0⤋