Inhaltszusammenfassung

Carbon is used in different configurations in refractory materials because of its property-enhancing effects, such as increased thermal shock resistance and wear reduction. In this context, organic carbon in particular is frequently criticized for its partly carcinogenic and mutagenic impact on human health, which arises especially in the presence of PAH. But despite decades of research, there is still no standardized analytical strategy for the detailed investigation of the complex organic ...Carbon is used in different configurations in refractory materials because of its property-enhancing effects, such as increased thermal shock resistance and wear reduction. In this context, organic carbon in particular is frequently criticized for its partly carcinogenic and mutagenic impact on human health, which arises especially in the presence of PAH. But despite decades of research, there is still no standardized analytical strategy for the detailed investigation of the complex organic phases in refractory materials apart from the analysis of some single defined compounds. Therefore, in this work, a non-target analytical strategy for characterization and classifications of refractory materials is presented. This is particularly challenging because the organic phase in these materials is often present in only a very small proportion and along with many other substances so that highly sophisticated analytical methods have to be used. The focus in this work is on the generation of a large amount of high-quality data using high resolution time-of-flight mass spectrometry as well as a targeted reduction, evaluation and interpretation of these data using multivariate statistical approaches. In addition to the clear classification of the materials based on their structure and chemical composition, characteristic features of each sample could be identified and extracted to provide a comprehensive understanding of the investigated refractories in order to evaluate their quality and even foresee their behavior in the future.» weiterlesen» einklappen

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Klassifikation

DFG Fachgebiet:
Materialwissenschaft

DDC Sachgruppe:
Ingenieurwissenschaften