scholarly journals Steam Oxidation Testing in the Severe Accident Test Station

2017 ◽  
Author(s):  
Bruce A. Pint
Keyword(s):  
Steam Oxidation ◽  
Severe Accident ◽  
Oxidation Testing

scholarly journals Steam Oxidation of Silicon Carbide at High Temperatures for the Application as Accident Tolerant Fuel Cladding, an Overview

Thermo ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 151-167
Author(s):  
Hai V. Pham ◽  
Masaki Kurata ◽  
Martin Steinbrueck
Keyword(s):  
Silicon Carbide ◽  
High Temperatures ◽  
Nuclear Power ◽  
Steam Oxidation ◽  
Severe Accident ◽  
Light Water Reactors ◽  
Severe Accidents ◽  
Potential Benefits ◽  
Water Reactors ◽  
Accident Conditions

Since the nuclear accident at Fukushima Daiichi Nuclear Power Station in 2011, a considerable number of studies have been conducted to develop accident tolerant fuel (ATF) claddings for safety enhancement of light water reactors. Among many potential ATF claddings, silicon carbide is one of the most promising candidates with many superior features suitable for nuclear applications. In spite of many potential benefits of SiC cladding, there are some concerns over the oxidation/corrosion resistance of the cladding, especially at extreme temperatures (up to 2000 °C) in severe accidents. However, the study of SiC steam oxidation in conventional test facilities in water vapor atmospheres at temperatures above 1600 °C is very challenging. In recent years, several efforts have been made to modify existing or to develop new advanced test facilities to perform material oxidation tests in steam environments typical of severe accident conditions. In this article, the authors outline the features of SiC oxidation/corrosion at high temperatures, as well as the developments of advanced test facilities in their laboratories, and, finally, give some of the current advances in understanding based on recent data obtained from those advanced test facilities.

Steam Oxidation Testing of Coatings for Next Generation Steam Power Plant Components

2006 ◽  
Vol 522-523 ◽  
pp. 205-212 ◽  
Author(s):  
Alina Agüero ◽  
Marcos Gutiérrez ◽  
Raúl Muelas
Keyword(s):  
Steam Oxidation ◽  
Steam Turbines ◽  
Generation Efficiency ◽  
Steam Power ◽  
Hvof Coatings ◽  
Higher Power ◽  
Oxidation Resistant ◽  
Cermet Materials ◽  
Oxidation Testing ◽  
Insight Into

To achieve higher power generation efficiency in steam turbines, operating temperatures are expected to rise from 550°C to 650°C. The use of oxidation resistant coatings on currently available materials, with high creep strength but inferior steam oxidation resistance, is being explored in order to accomplish this goal in the context of the European project “Coatings for Supercritical Steam Cycles” (SUPERCOAT). Coating techniques have been chosen on the basis of being potentially appropriate for coating steam turbine components: the application of metallic and ceramic slurries, pack cementation and the deposition of alloyed and cermet materials by thermal spray. The coatings were characterised by metallography, SEM-EDS and XRD and steam oxidation and thermal cycling laboratory testing was carried out at 650º C. In this presentation, the testing results of selected coatings will be shown including those which exhibit the most promising behaviour. For instance, slurry aluminides have been exposed to steam at 650°C for more than 38,000 h (test ongoing) without evidence of substrate attack. Some HVOF coatings such as FeAl, NiCr and FeCr also have shown excellent behaviour. The results have provided information regarding the mechanism of protection and degradation of these coatings as well as insight into new coating development.

scholarly journals Preliminary results from Low Pressure Steam Oxidation Testing of ALD ZrN and ZrO2 Coating Deposited over UCN Fuel Kernels

2021 ◽  
Author(s):  
Sumit Bhattacharya ◽  
Rachel Seibert ◽  
Andrew Nelson ◽  
Heather Connaway ◽  
Abdellatif Yacout
Keyword(s):  
Low Pressure ◽  
Steam Oxidation ◽  
Zro2 Coating ◽  
Preliminary Results ◽  
Pressure Steam ◽  
Oxidation Testing

scholarly journals High Temperature Steam Oxidation Testing of Candidate Accident Tolerant Fuel Cladding Materials

2013 ◽  
Author(s):  
Bruce A. Pint ◽  
Kurt A Terrani ◽  
Andrew Nelson ◽  
Scott Parker ◽  
Adam Parkison
Keyword(s):  
High Temperature ◽  
Steam Oxidation ◽  
Fuel Cladding ◽  
High Temperature Steam ◽  
Oxidation Testing
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