Nuclear & Extreme Environment Materials

Refractory Alloy for Nuclear Fusion Applications

WCrY is an advanced tungsten-based refractory alloy engineered for Hot Isostatic Pressing (HIP) consolidation, followed by high-temperature annealing above 1500 °C to eliminate Cr-rich secondary phases and stabilize a single-phase bcc structure. This thermal treatment process is essential for achieving thermal shock resistance and mechanical integrity under extreme operational conditions.

Designed to withstand steady-state and transient heat loads in the MW/m² range, WCrY alloy is ideal for plasma-facing components such as divertor and first wall assemblies in fusion reactor environments. The strategic addition of chromium and yttrium enhances high-temperature oxidation resistance up to 1000 °C and promotes grain refinement through in-situ oxide dispersion strengthening (ODS).

With its exceptional combination of thermal stability, radiation resistance, oxidation protection, and mechanical performance at elevated temperatures, WCrY represents a leading material solution for next-generation fusion energy systems and other extreme environment applications.

COMPOSITION
Tungsten bal. – Chromium 11-13% –  Yttrium 0.5%

Steel for Nuclear Fusion Reactors

Eurofer97-ODS is an oxide dispersion-strengthened (ODS) ferritic-martensitic steel powder, developed by MBN using high-energy ball milling process. This steel is obtained from elemental metal precursors with nano-scale Yttrium Oxide (Y₂O₃) dispersion. Eurofer 97-ODS is an advanced nuclear material engineered for high-temperature, high-radiation environments including fusion reactor components and advanced energy systems.

The uniform nanoscale oxide dispersion enhances creep resistance, microstructural stability under irradiation, and radiation damage tolerance. With precise particle size distribution control, the powder delivers the flowability and packing density needed for advanced powder metallurgy consolidation techniques.

Eurofer97-ODS powder is used for Hot Isostatic Pressing (HIP), Spark Plasma Sintering (SPS), and extrusion, enabling production of dense, near-net-shape structural components with minimized material waste and machining costs. Applications by Cold Gas Spraying are also possible.

Nuclear Applications include first-wall structures, breeding blanket components, thermal radiation shields, and high-temperature heat exchangers in demanding fusion and Gen-IV fission reactor environments.

COMPOSITION
Chromium 9% – Tungsten 1.1% – Manganese 0.4% – Vanadium 0.25% – Tantalum 0.12% – Carbon 1.2% – Yttrium Oxide NP 0.5% – Iron bal.

PROPERTIES – after deposition and HT
Yield Strenght                             >820 MPa
Ultimate Tensile Strenght        >940 MPa
Elsatic Modulus                          150 GPa
Elongation                                   3-5%
Hardness                                      310 HV