Comparative Study of Coated Particle Stresses With Different Coating Layer Performance

2016 ◽  
Author(s):  
Rong Li ◽  
Bing Liu ◽  
Chunhe Tang
Keyword(s):  
Coating Layer ◽  
Fuel Particle ◽  
Reactor Irradiation ◽  
Coated Particle ◽  
Shrinkage And Creep ◽  
Fuel Design ◽  
Fuel Behavior ◽  
Coated Fuel Particle ◽  
High Temperature Gas ◽  
Good Agreement

Tristructural-isotropic coated fuel particle is an important fuel design for high-temperature gas-cooled reactor. Irradiation-induced pyrocarbon (PyC) shrinkage and creep behavior will affect greatly the stresses of a TRISO-coated particle. In this study, 5 cases under different conditions by analytical solution were studied to calculate the particle stresses with different fuel behavior. These cases varied in particle geometries, the mount of gas pressure or fuel behavior. A comparison between the results and other benchmarking studies among different codes was made. The results indicated that the calculated results in this study were in good agreement with other codes.

Properties of Chemical Vapor Deposited ZrC coating layer for TRISO Coated Fuel Particle

2007 ◽  
Vol 44 (10) ◽  
pp. 580-584
Author(s):  
Jun-Gyu Kim ◽  
E-Sul Kum ◽  
Doo-Jin Choi ◽  
Young-Woo Lee ◽  
Ji-Yeon Park
Keyword(s):  
Coating Layer ◽  
Chemical Vapor ◽  
Fuel Particle ◽  
Chemical Vapor Deposited ◽  
Coated Fuel Particle ◽  
Zrc Coating

Fabrication of uniform ZrC coating layer for the coated fuel particle of the very high temperature reactor

2008 ◽  
Vol 376 (2) ◽  
pp. 146-151 ◽  
Author(s):  
Shohei Ueta ◽  
Jun Aihara ◽  
Atsushi Yasuda ◽  
Hideharu Ishibashi ◽  
Tomoo Takayama ◽  
...  
Keyword(s):  
High Temperature ◽  
Coating Layer ◽  
Fuel Particle ◽  
Very High Temperature Reactor ◽  
High Temperature Reactor ◽  
Coated Fuel Particle ◽  
Zrc Coating ◽  
Very High

scholarly journals Effect of Heat Treatment on TEM Microstructures of Zirconium Carbide Coating Layer in Fuel Particle for Advanced High Temperature Gas Cooled Reactor

2009 ◽  
Vol 50 (11) ◽  
pp. 2631-2636 ◽  
Author(s):  
Jun Aihara ◽  
Shohei Ueta ◽  
Atsushi Yasuda ◽  
Hitoshi Takeuchi ◽  
Yasuhiro Mozumi ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Coating Layer ◽  
Zirconium Carbide ◽  
Fuel Particle ◽  
Carbide Coating ◽  
High Temperature Gas

Behavior of Coated Fuel Particle of High-Temperature Gas-Cooled Reactor under Reactivity-Initiated Accident Conditions

2010 ◽  
Vol 47 (11) ◽  
pp. 991-997 ◽  
Author(s):  
Miki UMEDA ◽  
Tomoyuki SUGIYAMA ◽  
Fumihisa NAGASE ◽  
Toyoshi FUKETA ◽  
Shohei UETA ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Particle ◽  
Accident Conditions ◽  
Coated Fuel Particle ◽  
High Temperature Gas

Effect of PyC Thermal Behavior on the Stress of TRISO-Coated Fuel Particles

2016 ◽  
Vol 697 ◽  
pp. 852-857
Author(s):  
Rong Li ◽  
Bing Liu ◽  
Chun He Tang
Keyword(s):  
Pressure Vessel ◽  
Elastic Strain ◽  
Fission Products ◽  
Fuel Particle ◽  
Coated Particles ◽  
Inner Pressure ◽  
Higher Temperature ◽  
Fuel Particles ◽  
Coated Fuel Particle ◽  
Increasing Temperature

TRISO coated fuel particle is the most important component in HTR fuel, the silicon carbide (SiC) coating layer is regarded as the pressure vessel to contain the fission products. During reactor operation, the inner pressure resulting from fission products and pyrocarbon (PyC) thermal effect will contribute to the failure of TRISO-coated particles. The higher temperature will result in the increasing of inner pressure and PyC thermal expansion, which will then change the stress of SiC layer. Considering the effects of temperature on inner-pressure expansion and elastic strain into the pressure vessel failure model, thermal effects on the stress of TRISO-coated particles were studied with analytical solution. The results indicated that the effects of inner pressure on the particle stresses were increasingly highlighted at the late stage of irradiation. And the increasing temperature caused a slight effect on PyC elastic modulus while elastic strain is unaffected greatly, either. Therefore, CFP stresses remain unchanged basically.

Evaluation of the Fracture Strength for Silicon Carbide Layers in the Tri-Isotropic-Coated Fuel Particle

2006 ◽  
Vol 0 (0) ◽  
pp. 061205002105002-???
Author(s):  
Seong-Gu Hong ◽  
Thak-Sang Byun ◽  
Richard A. Lowden ◽  
Lance L. Snead ◽  
Yutai Katoh
Keyword(s):  
Silicon Carbide ◽  
Fracture Strength ◽  
Fuel Particle ◽  
Coated Fuel Particle

Review of Progress in Coated Fuel Particle Performance Analysis

2019 ◽  
Vol 194 (3) ◽  
pp. 169-180
Author(s):  
Nairi Baghdasaryan ◽  
Tomasz Kozlowski
Keyword(s):  
Performance Analysis ◽  
Fuel Particle ◽  
Coated Fuel Particle

The Potential of Electronic High Temperature Devices Based Upon Polymer Derived Ceramics

2005 ◽  
Author(s):  
Weixing Xu ◽  
Jayanta Kapat ◽  
Louis C. Chow ◽  
Linan An ◽  
Wenge Zhang
Keyword(s):  
Electrical Conductivity ◽  
High Temperature ◽  
Room Temperature ◽  
Polymer Derived Ceramics ◽  
Micro Parts ◽  
Varied Composition ◽  
Potential Use ◽  
Lithography Technique ◽  
High Temperature Gas ◽  
Good Agreement

In this paper, we describe the potential use of polymer-derived ceramics (PDCs) for micro-sensors for high-temperature gas turbine applications. PDCs have several unique properties such as ease of microfabrication, excellent mechanical, materials and thermal properties, and tunable electrical conductivity. The electrical conductivity of PDCs with varied composition is measured as a function of temperature from room temperature upon to 700°C. Our results reveal that with suitable doping, the electrical conductivity could be controlled from insulating to semiconducting. Next, we measure the cure depth of the precursors as a function of UV intensity and exposure time. A model is developed to predict the cure depth as a function of photoinitiator concentration and light intensity. Good agreement between theory and experimental data is obtained. Finally, a few typical micro parts are fabricated by lithography technique.

Sign in / Sign up

Export Citation Format

Share Document