TY  - JOUR
AU  - Gietl, H.
AU  - Müller, A v
AU  - Coenen, Jan Willem
AU  - Decius, M.
AU  - Ewert, D.
AU  - Höschen, T.
AU  - Huber, Ph
AU  - Milwich, M.
AU  - Riesch, J.
AU  - Neu, R.
TI  - Textile preforms for tungsten fibre-reinforced composites
JO  - Journal of composite materials
VL  - 52
IS  - 28
SN  - 1530-793X
CY  - London
PB  - Sage
M1  - FZJ-2020-00100
SP  - 3875 - 3884
PY  - 2018
AB  - Demanding high heat flux applications, as for example plasma-facing components of future nuclear fusion devices, ask for the development of advanced materials. For such components, copper alloys are currently regarded as heat sink materials while monolithic tungsten is foreseen as directly plasma-facing material. However, the combination of these materials in one component is problematic since they exhibit different thermomechanical characteristics and their optimum operating temperatures do not overlap. In this context, an improvement can be achieved by applying composite materials that make use of drawn tungsten fibres as reinforcement. For the manufacturing processes of these composites, suitable tungsten fibre preform production methods are needed. In the following, we will show that tungsten fibres can be processed to suitable preforms by means of well-established textile techniques as studies regarding the production of planar weavings (wire distances of 90–271 µm), circular braidings (multilayered braidings with braiding angle of 60° and 12°) as well as multifilamentary yarns (15 tungsten filaments with 16 µm diameter) are presented. With such different textile preforms tungsten fibre-reinforced tungsten (Wf/W) with a density of over 99% and pore-free tungsten fibre-reinforced copper Wf/Cu composites were produced which proves their applicability with respect to a composite material production processes.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000452293900003
DO  - DOI:10.1177/0021998318771149
UR  - https://juser.fz-juelich.de/record/872607
ER  -