Incoprea Theory
Vol. X · 999 project

Theory 027/Materials Processing

Brazed Joints Peak at a Layer

The claim

Brazed joint strength peaks at an intermediate intermetallic layer thickness, weakening both thinner and thicker.

01The mechanism

Too thin gives incomplete bonding; too thick gives a brittle layer that cracks under load.

02Predictions

  • P1Strength should peak at a thickness.
  • P2Both extremes should fail differently.

03Refutation

Monotonic strength with thickness would remove the optimum.