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Development of Plasma Facing Components with Functionally Gradient Layers

M. Morimoto, F. Kudough, M. Onozuka, H. Tsunoda, M. Toyoda

Fusion Science and Technology / Volume 26 / Number 3P2 / November 1994 / Pages 503-506

Fusion Material and Plasma-Facing Component / Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 / dx.doi.org/10.13182/FST94-A40206

The use of functionally graded layers (FGLs) for plasma facing components (PFCs), owing to moderate or piecewise transition in material properties from low-Z surface materials to metal substrates, can provide reduction in thermal stresses, and also provide high thermal load resistance to PFCs.1 This article deals with the comparison of high heat flux testing and thermal stress analysis results on PFCs. Thermal stress analyses confirmed the thermal loading test results.