Analysis of Enhanced Heat Flux First Wall behavior under ITER Pulsed Loads

Sviridenko, Maxim; Leshukov, A.Yu.; Tomilov, S.N.; Strebkov, Yu.S.; Хохлов, М. В.; Okuneva, E.; Gervash, A.; Safronov, V.M.; Raffray, R.; Eaton, R.; Gicquel, S.; Calcagno, B.

doi:10.1016/j.fusengdes.2020.111897

Cited by 3 publications

(1 citation statement)

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“…One of the part's types of the International Thermonuclear Experimental Reactor (ITER) blanket modules [10][11][12] -prismatic, cylindrical pads coated with an electrical insulating coating (EICthermally sprayed ceramic oxide coatings MgAl2O4/Al2O3 [9,11,[13][14][15][16][17][18] simultaneously undergo the pairing effort of compression/shear forces by relative micro/macro movements/vibrating due to impact and electromagnetic loads [10] on the blanket panels during predictable plasma disruption. It is essential, that the number of plasma disruption will be minimized but it will be impossible to exclude this event.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Shear Bond Strength of Thermal Spray Coatings by Applying Prismatic Samples

Zaytzev

Lukianova

Demoretsky

2022

SSP

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The purpose of this study was the research for a non-standardized method of measuring the shear bond strength at constant compression force and compare with the shear testing methods on cylindrical and prismatic samples, like DIN 50161:1977-10, DIN EN15340-2007. The conducted comparative analysis showed a significant shortcoming of the well-known methods for assessing the shear bond strength on samples for industrial application. The main one is an inability to measure the “actual/real” adhesion shear strength of thermal spray coatings for industrial parts. The shear bond strength of plasma-sprayed coating MgAl2O4 with thickness 0.30-has been investigated by applying the prismatic samples (linear dimensions of shear area 1.5-), using Nanovea scratch tester at compression forces ranging from 1 to 70 N. Shear force-displacement curves get essential information about adhesion/cohesion, delamination and cracking properties of thermal spray coating. An increase of shear forces is primarily associated with a rise in friction forces at the coating delamination boundary. Applying for parts of the ITER blanket modules, this research has demonstrated the importance of practical application of the shear testing results at compressive loads for ensuring product life.

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