Plansee Se

The European Atomic Energy Community, Represented by the European Commission

Dietmar Schedle

Thomas Huber

Bertram Schedler

Anton Zabernig

Thomas Friedrich

Hans-Dieter Friedle

Karlheinz Scheiber

Sandra Mair

Nadine Wörle

Arno Plankensteiner

Karlheinz Schreiber

Thomas Granzer

Karl-Heinz Scheiber

A first-wall component of a fusion reactor has a heat shield and a heat sink. The heat shield is formed of a material from the group of graphite material, carbidic material, tungsten and tungsten alloy. The heat sink is formed of a spray-compacted copper alloy.

First-wall component for a fusion reactor with a heat sink of a copper alloy

A material composite has at least one region of copper or a copper alloy, at least one region of a predominantly graphitic material, and at least one boundary region between them. The boundary region has one or more carbides from the group of the IV, V, VItransition metals and one or more elements of the group consisting of Si, B, Al, Ge, Mn, Sn. In a preferred implementation of the invention, the composite is produced with a back-casting process.

Method of producing a material composite

A cooling device component of monobloc design has a heat shield made from tungsten, a tungsten alloy, a graphitic material or a carbidic material provided with a through-hole. A cooling pipe for carrying coolant is joined in the through-hole. The heat shield is in turn joined or metallurgically joined to a structural part made from a material with a tensile strength at room temperature of &#x3e;300 MPa and an electrical resistivity of &#x3e;0.04 Ohm mmm.

Monobloc cooling device component

A first-wall component for a fusion reactor contains at least one heat shield having a first region inclined toward the plasma and a second region lying opposite the first region and formed of a graphitic material. The heat shield has one or more slots that end in the first or second regions and are oriented generally in the direction of an axis of the cooling tube. The components suitably cope with the mechanical stresses resulting both from production and from thermal cycling.

First-wall component for a fusion reactor

The invention relates to a first-wall component of a fusion reactor, which comprises at least one heat shield of a graphitic material and a cooling tube of copper or a copper alloy. Arranged between the heat shield and the cooling tube is a tube segment, which is connected at least in certain regions to the heat shield and to the cooling tube via copper-containing layers.

First-wall component with tube segment

A material composite has a part made from steel or a titanium-based material and a part made from a copper-based or aluminum-based material. The parts of the material composite are joined by way of an intermediate piece. The intermediate piece likewise comprises a region made from steel or a titanium-based material and a region made from a copper-based or aluminum-based material, which are connected by explosion welding. The parts of the material composite are connected to the regions of the intermediate piece which are in each case of the same type by means of a fusion or diffusion welding process.

Method of producing a material composite with explosion-welded intermediate piece

Material composite and method of producing the composite

A highly heat-resistant laminated component for a fusion reactor has at least of a plasma-facing area made of tungsten or a tungsten alloy, a heat-dissipating area of copper or a copper alloy with a mean grain size of more than 100 &#x3bc;m, and an interlayer of a refractory metal-copper-composite. The refractory metal-copper-composite has a macroscopically uniform copper and refractory-metal concentration progression and a refractory metal concentration of between 10 vol. % and 40 vol. % over its entire thickness.

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Reutte, Austria

Dietmar Schedle