Hydrogen retention and carbon deposition in plasma facing components and the shadowed area of JT-60U

2007 ◽  
Vol 47 (11) ◽  
pp. 1577-1582 ◽  
Author(s):  
K. Masaki ◽  
T. Tanabe ◽  
Y. Hirohata ◽  
Y. Oya ◽  
T. Shibahara ◽  
...  
Keyword(s):  
Carbon Deposition ◽  
Plasma Facing Components ◽  
Hydrogen Retention ◽  
Shadowed Area

scholarly journals Finite element analysis of hydrogen retention in ITER plasma facing components using FESTIM

2019 ◽  
Vol 21 ◽  
pp. 100709 ◽  
Author(s):  
Rémi Delaporte-Mathurin ◽  
Etienne A. Hodille ◽  
Jonathan Mougenot ◽  
Yann Charles ◽  
Christian Grisolia
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Plasma Facing Components ◽  
Hydrogen Retention

Short-term retention in metallic PFCs: modelling in view of mass spectrometry and LIBS

2021 ◽  
Author(s):  
Dmitry Matveev ◽  
Xi Jiang ◽  
Gennady Sergienko ◽  
Arkadi Kreter ◽  
Sebastijan Brezinsek ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Reaction Diffusion ◽  
Plasma Exposure ◽  
Short Term ◽  
Conventional Model ◽  
Term Retention ◽  
Plasma Facing Components ◽  
Laser Induced Breakdown ◽  
Hydrogen Retention ◽  
Release Data

Abstract Based on the conventional model of hydrogen retention in plasma-facing components, the question of hydrogen outgassing during and after plasma exposure is addressed in relation to mass spectrometry and laser-induced breakdown sprectroscopy (LIBS) measurements. Fundamental differences in retention and release data acquired by LIBS and by mass spectrometry are described analytically and by modelling. Reaction-diffusion simulations are presented that demonstrate possible thermal outgassing effects caused by LIBS. Advantages and limitations of LIBS as a tool for analysis of short term retention are discussed.

Microstructural and fractographic characterization of B4C-Al cermets tested under dynamic and static loading

1989 ◽  
Vol 47 ◽  
pp. 562-563
Author(s):  
Gyeung Ho Kim ◽  
Mehmet Sarikaya ◽  
D. L. Milius ◽  
I. A. Aksay
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Fracture Toughness ◽  
Static Loading ◽  
Carbon Deposition ◽  
Full Density ◽  
Unique Combination ◽  
Strong Component ◽  
Reaction Products

Cermets are designed to optimize the mechanical properties of ceramics (hard and strong component) and metals (ductile and tough component) into one system. However, the processing of such systems is a problem in obtaining fully dense composite without deleterious reaction products. In the lightweight (2.65 g/cc) B4C-Al cermet, many of the processing problems have been circumvented. It is now possible to process fully dense B4C-Al cermet with tailored microstructures and achieve unique combination of mechanical properties (fracture strength of over 600 MPa and fracture toughness of 12 MPa-m1/2). In this paper, microstructure and fractography of B4C-Al cermets, tested under dynamic and static loading conditions, are described.The cermet is prepared by infiltration of Al at 1150°C into partially sintered B4C compact under vacuum to full density. Fracture surface replicas were prepared by using cellulose acetate and thin-film carbon deposition. Samples were observed with a Philips 3000 at 100 kV.

Elemental carbon deposition to Svalbard snow from Norwegian settlements and long-range transport

Tellus B ◽  
2011 ◽  
Vol 63 (3) ◽  
Author(s):  
Borgar Aamaas ◽  
Carl Egede Bøggild ◽  
Frode Stordal ◽  
Terje Berntsen ◽  
Kim Holmén ◽  
...  
Keyword(s):  
Long Range ◽  
Elemental Carbon ◽  
Carbon Deposition ◽  
Long Range Transport ◽  
Range Transport
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