Mechanical properties of a new class of MGO-C castables with extruded graphite pellets
Research output: Thesis › Master's Thesis
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2020.
Research output: Thesis › Master's Thesis
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TY - THES
T1 - Mechanical properties of a new class of MGO-C castables with extruded graphite pellets
AU - Paschek, Gerhard Horst
N1 - embargoed until null
PY - 2020
Y1 - 2020
N2 - Some of the negative impacts of carbon addition on the strength of castables are yet to be overcome in order to fulfill its potential benefits for oxidation resistance. This paper reports the results of recent studies conducted at CIREP on the effects of different types of carbon additives on the thermo-mechanical properties of magnesia-based castables. Experimental techniques included measurements of the hot modulus of rupture (HMOR), hot modulus of elasticity (HMOE), as well as the wedge-splitting test (WST). The comparison of evolving microstructures was carried out employing scanning electron microscopy with microanalysis attachment (SEM/EDS) and X-ray diffraction (XRD). HMOR values of 12 MPa at 1300°C have been reached in castables based on MgO-C with silicon, containing up to 7% carbon.
AB - Some of the negative impacts of carbon addition on the strength of castables are yet to be overcome in order to fulfill its potential benefits for oxidation resistance. This paper reports the results of recent studies conducted at CIREP on the effects of different types of carbon additives on the thermo-mechanical properties of magnesia-based castables. Experimental techniques included measurements of the hot modulus of rupture (HMOR), hot modulus of elasticity (HMOE), as well as the wedge-splitting test (WST). The comparison of evolving microstructures was carried out employing scanning electron microscopy with microanalysis attachment (SEM/EDS) and X-ray diffraction (XRD). HMOR values of 12 MPa at 1300°C have been reached in castables based on MgO-C with silicon, containing up to 7% carbon.
KW - thermomechanischen Eigenschaften Magnesiumoxyd basierenden Gießmassen
KW - Heißbiegefestigkeit (HBF)
KW - Elastizitätsmodul
KW - Keilspalttest
KW - Elektronenmikroskop mit Mikroanalysezubehör (SEM/EDS)
KW - Röntgendiffraktrometrie (XRD)
KW - thermo-mechanical properties magnesia-based castables hot modulus of rupture (HMOR)
KW - hot modulus of elasticity (HMOE)
KW - wedge-splitting test (WST)
KW - scanning electron microscopy with microanalysis attachment (SEM/EDS)
KW - X-ray diffraction (XRD)
M3 - Master's Thesis
ER -
