PT Journal
AU Novak, P
   Vlasek, J
   Dvorak, P
   Skolakova, A
   Nova, K
   Knaislova, A
TI Microstructure of the Alloys Prepared by Reduction of Deep Sea Nodules by Aluminium and Silicon
SO Manufacturing Technology Journal
PY 2020
BP 655
EP 659
VL 20
IS 5
DE Deep sea nodules; Metallothermic reduction; Alloy; Microstructure
AB Deep sea nodules are considered as an alternative and very rich source of several metals. Up to pre-sent days, the processing of these polymetallic ores is cosidered to be carried out by the extraction of individual metals. This work deals with the processing of the deep-sea nodules by metalothermic method by aluminium and silicon. The nodules are reduced complexely without the extraction of individual metals, forming the polymetallic alloys. Reduction was carried out in a small scale with the initiation in an electric resistance furnace. Microstructures of the formed alloys and the slag were described in dependence on the excess of the reduction agent against the stoichiometry. Even though both of the reduction agents are generally applicable, reduction by aluminium was proved to be more efficient and leads to more complex alloys.
ER