Fraunhofer Institute for Microstructure of Materials and Systems IMWSProfile
Areas of research
The main research focus is the development of glasses and their transformation into glass ceramics. For this purpose, crystalline functional phases, which significantly influence the properties, need to be selectively precipitated from inorganic glasses. The process of material development begins with determining suitable glass compositions and extends to the fabrication from melts at temperatures, sometimes exceeding 1700°C. Subsequently, physical characteristics of the produced glasses are determined. To enable a targeted transformation of the glass into a glass ceramic, the crystallization behavior is investigated using thermal analysis and phase analysis. Based on these insights, the production of glass ceramics becomes possible. Analytical methods, especially electron microscopy, are employed to examine the often particularly small crystals. Building upon this, both the microstructure and consequently the macroscopic material properties are optimized.
Academic/ professional resume
01/2023-present
Group Leader Microstructure-Based Material Development at the Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale)
06/2021-01/2023
Team Leader Glass and Crystallization at the Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale)
10/2016-06/2021
Research Scientist at the Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale)
01/2016-10/2016
Research Scientist at the Otto Schott Institute for Materials Research, Friedrich Schiller University Jena
12/2012-01/2016
Research Scientist and PhD Candidate at the Otto Schott Institute for Materials Research, Friedrich Schiller University Jena PhD on the topic "Crystalline Phases and Ceramic Materials with High and Low Coefficients of Thermal Expansion based on Alkaline Earth Zinc Silicates" at Friedrich Schiller University Jena
10/2007 - 10/2012
Study of Materials Science at Friedrich Schiller University Jena
Prizes and awards
Hugo Junkers Prize of the State of Saxony-Anhalt
First place in the category "Applied Research" for the discovery of the first new negatively expanding silicates in over 50 years and the integration of these into innovative glass ceramics with low thermal expansion.
Publications
Ausgewählte Artikel in Fachzeitschriften mit wissenschaftlicher Qualitätskontrolle
Solid solutions based on BaZn2Si2O7 with thermal expansions from negative to highly positive – a review.
C. Thieme, C. Rüssel
CrystEngComm 24 (2022) 5663-5674
Phase stability determination of negative thermal expansion silicates by theory and experiment.
A. Erlebach, G. B. Hassine, C. Thieme, K. Thieme, C. Rüssel, M. Sierka.
Physical Chemistry Chemical Physics 23 (2021) 25533-25541
Determination of the crystallization mechanism of glasses in the system BaO/SrO/ZnO/SiO2 with differential scanning calorimetry.
K. Thieme, C. Thieme.
Journal of Thermal Analysis and Calorimetry 142 (2020) 1193-1206
Core-shell structures with metallic silver as nucleation agent of low expansion phases in BaO/SrO/ZnO/SiO2 glasses.
C. Thieme, M. Kracker, K. Thieme, C. Patzig, T. Höche, C. Rüssel.
CrystEngComm 21 (2019) 4373-4386
The acceleration of crystal growth of gold-doped glasses within the system BaO/SrO/ZnO/SiO2.
C. Thieme, M. Kracker, C. Patzig, K. Thieme, C. Rüssel, T. Höche.
Journal of the European Ceramic Society 39 (2019) 554-562