Xeradia
COATINGS MADE CLEAR

Advanced nanoceramic coatings for next-generation fusion and fission reactors.

Xeradia develops multifunctional coatings designed to enhance efficiency and accelerate the deployment of next-generation fusion and fission reactors By combining Atomic Layer Deposition (ALD) and Pulsed Laser Deposition (PLD) technologies, our high performance coatings provide excellent tritium barrier capabilities and corrosion resistance.

Xeradia plasma reactor

Technology

Two deposition techniques, infinite possibilities

Xeradia employs both ALD and PLD to meet the diverse requirements of nuclear system. ALD provides precise conformal protection of complex geometry. Whereas, PLD is particularly suited for dense thin film for highly stressing condition. This dual approach allows us to engineer tailored coating solution to overcome current challenges.

Atomic Layer Deposition (ALD)

ALD is capable of producing a layer-by-layer coating exploiting the subsequent selflimiting reactions occurring on the surface. This process was selected to enable coating deposition in areas inaccessible to conventional technologies. Typical applications include tubes and internal cavities, heat exchangers, welded joints, breeding blanket channels, manifolds, and storage tanks. The result is uniform, pinhole-free protection across complex geometries, ensuring reliable performance wherever protection is needed, without the need for plasma-assisted processes.

Conformal coating on complex 3D surfaces
Pure thermal ALD process
Suitable for multiple substrates
High throughput via parallelized production
Fusion breeding blanket tritium permeation barrier
ALD CASE APPLICATION

Tritium barrier in breeding blankets

Tritium management remains one of the most critical challenges to the future commercialization of fusion energy. Any tritium loss represents both a safety risk and an economic burden. Xeradia addresses this challenge by applying its patented coating technology to fusion reactor breeding blankets, reducing tritium transport through structural materials while mitigating material degradation, embrittlement, and environmental dispersion.

LFR cladding protected by Xeradia coating
PLD CASE APPLICATION

LFR cladding in molten lead

Today, no structural material can provide long-term protection against corrosion in high-temperature liquid lead environments, representing a major obstacle to the deployment of Lead-cooled Fast Reactors (LFRs). Xeradia addresses this challenge by coating fuel cladding components with its patented ceramic materials, which combine chemical inertness with irradiation stability. This approach enhances the durability, safety, and overall performance of the reactor core under the most demanding operating conditions.

Pulsed Layer Deposition (PLD)

PLD relies on the interaction between a high-energy laser and a target material, generating an ablation plume that deposits onto a substrate maintained at near-room temperature. Xeradia has specialized this process for advanced ceramic materials, producing dense, amorphous thin films with exceptional adhesion and structural integrity. These coatings exhibit outstanding resistance to mechanical, thermal, and irradiation-induced stresses. Furthermore, the precise control of coating composition enables the engineering of multifunctional multilayer architectures for corrosion protection, permeation barriers, and electrical insulation applications.

Dense amorphous thin films
Strong adhesion to metallic substrates
High temperature corrosion resistance
Polifunctional multilayer architectures

Applications

A viable solution for present and future nuclear challenges

Xeradia solutions are designed to address some of the most critical challenges across current and next-generation nuclear power systems. Xeradia’s patented coating formulations target three key applications: accident-tolerant fuel claddings for today’s reactors, corrosion-resistant steel components for molten-metal cooled fast reactors, and tritium barriers for future fusion power plants.

Tritium barriers for fusion reactors

Our patented coating formulation is engineered to reduce hydrogen isotope permeation in breeding blankets and primary circuits, supporting safety and tritium economy.

Accident-tolerant fuel for III-Gen fission reactors

Our patented coating solution enhances the resilience of fuel cladding under accident conditions, extending the safety response window.

Molten-metal protection for IV-Gen fission reactors

Our patented coating composition improve the performance and safety of steel cladding exposed to high-temperature lead-based coolants.

Validation

Validation across fission and fusion environments

The technology originates from research and validation campaigns conducted in harsh nuclear environments, including testing relevant to both fission and fusion systems. Coated samples have been studied under high-temperature exposure, corrosive liquid-metal conditions, long-term hydrogen exposure, and heavy ion irradiation, under operating conditions and geometries representative of next-generation reactor designs.

>10³

demostrated Permeation Reduction Factor (PRF)

30 DPA at 800°C

High-temperature radiation tolerance

8,000 h

long-term corrosion resistance

>200 GPa

Elastic modulus

Vision

Building the invisible layer to safeguard the future of nuclear energy

Xeradia is currently transitioning from laboratory-scale validation toward early-stage industrial demonstration and reactor-relevant qualification. The company’s roadmap targets future integration into advanced fusion and fission supply chains through pilot-scale coating capabilities, industrial partnerships, and reactor-oriented materials testing campaigns.

01

Engineering multifunctional coating solutions to enhance the performance, economics, and safety of nuclear systems.

02

Developing more efficient and reliable ALD and PLD coating systems to enable scaling-up.

03

Bridging laboratory-scale thin-film science with industrial nuclear deployment.

04

Becoming a strategic materials partner for fusion and fission ecosystems.

Team

A multidisciplinary team bridging materials science and nuclear engineering

Xeradia brings together competencies in ALD and PLD technologies, nuclear materials science, reactor-oriented coating engineering. The team operates at the intersection of research and industrial innovation, with the objective of translating advanced coating science into scalable solutions for next-generation fusion and fission energy systems.

Paolo Mutti

PaoloMutti

CEO & Founder

Fabio Di Fonzo

FabioDi Fonzo

CTO & Founder

Andrea Stinchelli

AndreaStinchelli

Nuclear engineering

Giulio Fierli

GiulioFierli

Equipment design

Gioele Tornaghi

GioeleTornaghi

Characterization and testing

Gabriele Caldarini

GabrieleCaldarini

Materials Science

Contact

Let’s build the next generation of nuclear materials together.

As the world enters a new era of nuclear energy development, advanced materials are becoming a critical enabling technology for both fusion and next-generation fission systems. Xeradia aims to contribute to this nuclear renaissance through high-performance nanoceramic coatings designed for extreme reactor environments. We welcome reactor developers, industrial partners, research institutions and investors interested in accelerating the deployment of safer, more durable and more efficient nuclear technologies.