Artigo Revisado por pares

Failure modes of vacuum plasma spray tungsten coating created on carbon fibre composites under thermal loads

2009; Elsevier BV; Volume: 392; Issue: 1 Linguagem: Inglês

10.1016/j.jnucmat.2009.03.060

ISSN

1873-4820

Autores

T. Hirai, N. Bekris, J.P. Coad, C. Grisolia, J. Linke, H. Maier, G.F. Matthews, V. Philipps, E. Wessel,

Tópico(s)

Fusion materials and technologies

Resumo

Vacuum plasma spray tungsten (VPS-W) coating created on a carbon fibre reinforced composite (CFC) was tested under two thermal load schemes in the electron beam facility to examine the operation limits and failure modes. In cyclic ELM-like short transient thermal loads, the VPS-W coating was destroyed sub-layer by sub-layer at 0.33 GW/m2 for 1 ms pulse duration. At longer single pulses, simulating steady-state thermal loads, the coating was destroyed at surface temperatures above 2700 °C by melting of the rhenium containing multilayer at the interface between VPS-W and CFC. The operation limits and failure modes of the VPS-W coating in the thermal load schemes are discussed in detail.

Referência(s)
Altmetric
PlumX