Study of Inclusion’s Source and Character in Different T[O] Content

Abstract

Inclusion’s source and character in different T[ content are studied in the paper, molten slag and refractory material that leave in steel are also calculated. Inclusion in steel are principally come from deoxidation, accompany with the decrease of T[ content, influence of molten slag and refractory materials to inclusions are getting more and more serials. Inclusions which come from molten slag and refractory material are 88.9%, 24.6% and 18.1% defenetly. Great influence on non steady large inclusions in T[ steel, when the mold level fluctuation is large, almost 100% of inclusions in steel have slag inclusion of covering slag. When tundish liquid level fluctuation is large, about 30%~60% inclusions in steel have tundish slag.

Lignin-based carbon fibers: Carbon nanotube decoration and superior thermal stability

“…6B, the intensities of D and G 416 peaks remain relatively constant for all the fibers and their I D / 417 I G ratios are all close to 0.85, indicating similar structural per-418 fection of graphitic carbons [98]. Peak shifts on both D and G 419 peaks can be observed for the fibers containing Fe or Pd nano-420 particles, which is presumably caused by electron doping or 421 mechanical strain effects of the nanoparticles [99]. The 422 increase in the fraction of sp 3 carbon can also shift the G peak 423 to a lower wavenumber [96,100].…”