Listar por tema "differential"
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Analysis of DTA and dilatometric data used to study the behaviour of a mould flux
(2019-06-01)In the present work a casting powder containing ≈ 36 wt% SiO2, ≈ 31 wt% CaO, 13 wt% Na2O, and 10 wt% CaF2, was used as starting material. A mass of 10 g of the mould powder was placed in a graphite crucible and melted at ... -
Replacement of fluorine in mould powders: influence on the crystallization kinetics
(Springer, 2019-06-01)In the present work mould powders were prepared using different raw materials. One powder was fluorine-containing and the others were free-F. The total fluorine content (approx. 10 wt%) was replaced by different percentages ... -
Thermal analysis techniques applied to study wear mechanisms of black refractories used in the steel continuous casting process
(Springer, 2019-06-01)In this paper, the results are correlated with information obtained through conventional techniques such as optical microscopy (OM) and scanning electron microscopy (SEM) including EDS analysis and EBSD, that are used to ...