两步法由高炉瓦斯泥制备纳米级零价铁 - 材料工程.PDF

49 Pr epar at ion o f N anomet er Fe f rom Blast Fur nace W et Dust by T w o- st ep M ethod 1 2 1 , , 1 , 063009; 2 , 063009) 1 2 1 X U Y ing , WA N G Wei , WA N G J uan 1 H ebei Pro vince Key L aborat ory of Inorganic N onm et allic M at erials, College o f Mat er ials Science and Engineering , H ebei Po lyt echnic Universit y, T ang shan 063009, H ebei, China; 2 T angshan V ocat ion Co lleg e of Science and T echnolog y, T angshan 063009, H ebei, China) : , X XRD) SEM ) XP S) V SM ) : A- Fe , 74nm , N i , M s = 60 . 85A # m2 # kg- 1 , M r = 12 . 226A # m2 # kg - 1 , H c = 21. 4 1kA # m- 1 : ; ; : T B383 : A : 100 1- 4 381 2009) 08- 0049- 04 Abstract: Blast f ur nace w et du st was taken as raw mat er ial, and nanomet er F e w as prepared by t w o- st ep method . T he variat io n reg ularit y of t he m at t er w as t o be f ocused on , so w as t he r elat ionship be- t w een micro cosmic st ruct ure and perfo rmance charact erizat ion. T he final product w as inspect ed by X radial dif f ract , scan elect ro n m icroscope, X radial pho to electr on spect rum and vibrancy sam ple mag- netism. T he result s show t hat t he pow der is nanomet er A- F e, it s av er ag e size is 74nm. T here is ox ide of N i enw rapped on the surf ace of F e part icles. T he sat uratio n m agnet izat io n int ensit y M s o f nano me- t er F e is 60. 85 A # m2 # kg- 1 , and the remaining mag net iz at io