Technologies
- Welding, Coating and Material Processing
  - Joining

Diffusion Bonding

Diffusion bonding offers a number of advantages to a wide range of industry sectors and applications, particularly where there is a need to join dissimilar materials.

The main advantage of diffusion bonding is that, unlike welding, it is not a 'fusion' process – the parent materials to be joined do not need to be melted. This makes diffusion bonding an ideal solution for joining materials such as:

Metals
Ceramics

Other advantages include:

Near-parent properties
Minimal shape change to parts
No post-finishing

The key to successful diffusion bonding lies in choosing process conditions which are appropriate to the circumstances, because the joint needs to form successfully with both parent materials, whilst controlling deformation. Joint intimacy and cleanliness are also critical factors.

TWI's multi-disciplinary team has several decades of experience in diffusion bonding with vacuum, controlled atmospheres, resistance heating and induction heating, and transient liquid phase diffusion bonding (diffusion brazing).

We take pride in offering a full and rounded solution to our Members, and take great care to ensure that we recommend the techniques that best suit your circumstances, paying particular attention to:

Process selection
Metallurgy
Component design
Testing

Our advice is always impartial. TWI is not allied to the suppliers of any particular suppliers of diffusion bonding equipment.

Our track record includes research and the practical application of diffusion bonding techniques for: