Speaker
Bong Guen Hong
(Chonbuk National University)
Description
We investigate the ablation characteristics of plasma facing materials (PFM) using thermal plasma facilities. A high enthalpy, 400 kW plasma testing facility which uses an enhanced segmented arc torch as a plasma source and 55 kW vacuum plasma spraying system produce particle flux greater than 102424/(m22sec) and heat flux greater than 10 MW/m22, levels that are relevant for testing the PFM under fusion reactor conditions. We measure the ablation rate and surface roughness change that result from the ablation and perform a morphological analysis of the PFMs before and after the ablation test to investigate the ablation characteristics. We also perform heat flux test with an electron beam facility which impose the heat flux and compare the result with the ablation experiments to identify an effect of the particle loads on the PFMs.
Co-authors
Bo Ram Kang
(Chonbuk National University, Jeonju-si, South Korea)
Bong Guen Hong
(Chonbuk National University, Jeonju-si, South Korea)
Phil Yong Oh
(Chonbuk National University, Jeonju-si, South Korea)
