Mechanical properties of a new class of MGO-C castables with extruded graphite pellets

Gerhard Horst Paschek

Mechanical properties of a new class of MGO-C castables with extruded graphite pellets

Gerhard Horst Paschek

Chair of Ceramics (320)

Research output: Thesis › Master's Thesis

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Abstract

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.

Translated title of the contribution	Mechanische Eigenschaften neuer MgO-C Gießmassen mit extrudierten Grafit Pellets
Original language	English
Qualification	Dipl.-Ing.
Awarding Institution	Montanuniversität
Supervisors/Advisors	Harmuth, Harald, Supervisor (internal)
Publication status	Published - 2020

Bibliographical note

embargoed until null

Keywords

thermo-mechanical properties magnesia-based castables hot modulus of rupture (HMOR)
hot modulus of elasticity (HMOE)
wedge-splitting test (WST)
scanning electron microscopy with microanalysis attachment (SEM/EDS)
X-ray diffraction (XRD)

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title = "Mechanical properties of a new class of MGO-C castables with extruded graphite pellets",

abstract = "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.",

keywords = "thermomechanischen Eigenschaften Magnesiumoxyd basierenden Gie{\ss}massen, Hei{\ss}biegefestigkeit (HBF), Elastizit{\"a}tsmodul, Keilspalttest, Elektronenmikroskop mit Mikroanalysezubeh{\"o}r (SEM/EDS), R{\"o}ntgendiffraktrometrie (XRD), thermo-mechanical properties magnesia-based castables hot modulus of rupture (HMOR), hot modulus of elasticity (HMOE), wedge-splitting test (WST), scanning electron microscopy with microanalysis attachment (SEM/EDS), X-ray diffraction (XRD)",

author = "Paschek, {Gerhard Horst}",

note = "embargoed until null",

year = "2020",

language = "English",

school = "Montanuniversitaet Leoben (000)",

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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 -