Mössbauer effect characterization of Brazilian iron ores for mining industrial purposes

Costa, M.I. da; Kunrath, J. I.; Cunha, J.B.M. da; Moro, J. T.; Araújo, J.H. de

doi:10.1016/0168-583x(93)95196-c

Cited by 2 publications

(1 citation statement)

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“…Mn is the lowest percentage element (<1%) and it was not observed in the XRD diffractogram. The presence of Mn might be due to the occurrence of substitution manganese hematite structures as a result of environmental weathering 21 . The morphology of the filler particles was assessed by the SEM analysis of the composite fracture surface, as shown in Figure 2.…”

Section: Iron Ore Fine Characterizationmentioning

confidence: 99%

Photodegradation of UHMWPE Filled with Iron Ore Fine

et al. 2017

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Ultra high molecular weight polyethylene (UHMWPE) is one of the most important engineering materials owing to outstanding properties like impact strength and abrasion resistance. However, the relatively low Young´s modulus restricts some application and the use of fillers may be a suitable way to overcome this. The fillers can influence the photo stabilization of the compound, as it occurs to other polymers. Neat UHMWPE and its composites with 1 and 10% of iron ore fine were exposed to ultraviolet radiation for up to 33 days and then tested for mechanical properties. The stress-strain behaviour changed with degradation, with an evident necking and strain hardening region that was not observed before exposure, due to a reduction in entanglements density. From the tensile results, the filler may have a protection action against UV, particularly when a loading of 10% was present. Complementary analyses were performed, including X-ray diffraction, DSC and SEM.

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Section: Iron Ore Fine Characterizationmentioning

confidence: 99%