U
U. Stegmaier
Researcher at Karlsruhe Institute of Technology
Publications - 36
Citations - 464
U. Stegmaier is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Control rod & Cladding (fiber optics). The author has an hindex of 11, co-authored 32 publications receiving 310 citations.
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High temperature Cr-Zr interaction of two types of Cr-coated Zr alloys in inert gas environment
Jianqiao Yang,Jianqiao Yang,U. Stegmaier,Chongchong Tang,Martin Steinbrück,Mirco Große,Shuzhong Wang,Hans Jürgen Seifert +7 more
TL;DR: In this paper, the Cr-Zr interaction of two types of Cr coated Zr alloy accident tolerant fuel (ATF) claddings, deposited by cold spraying and magnetron sputtering, was studied in argon in the temperature range from 1100 to 1300°C.
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Oxidation at high temperatures in steam atmosphere and quench of silicon carbide composites for nuclear application
TL;DR: In this paper, the authors report about oxidation and quench tests of relevant silicon carbide samples at temperatures up to 2000°C in steam atmosphere, and after the tests the samples were characterized by means of optical microscopy, scanning electron microscopy and XRD and X-ray tomography.
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Experiments on air ingress during severe accidents in LWRS
TL;DR: In this article, various kinds of experiments on the oxidation of Zircaloy-4 cladding material in different scales and under different conditions at temperatures 800 -1300 -C and up to 2000 -C were presented.
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Transient experiments on oxidation and degradation of Cr-coated Zircaloy in steam up to 1600 ℃
Junkai Liu,Junkai Liu,Chongchong Tang,Martin Steinbrück,Jianqiao Yang,U. Stegmaier,Mirco Große,Di Yun,Hans Jürgen Seifert +8 more
TL;DR: In this article, the transient oxidation behavior of magnetron-sputtered chromium-coated Zircaloy-4 was studied in steam up to 1600°C, and the microstructural evolution of the coating-substrate system after oxidation was investigated.
Results of the QUENCH-10 experiment on air ingress
G. Schanz,M. Heck,Zoltán Hózer,L. Matus,Imre Nagy,L. Sepold,U. Stegmaier,Martin Steinbrück,H. Steiner,Juri Stuckert,P. Windberg +10 more
TL;DR: The QUENCH-10 test bundle as mentioned in this paper consists of 21 fuel rod simulators with a total length of approximately 2.5 m. The main objective of this test was to examine the oxidation and nitride formation of Zircaloy during air ingress, before flooding the bundle with water.