Diffusion Bonding Calculator

Calculate diffusion bonding time, temperature, and pressure parameters for solid-state joining of metals and ceramics

Input Parameters

Results

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Required Hold Time
hours
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Diffusion Coefficient
m2/s
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Diffusion Depth
um
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Homologous Temperature
Tm
Note: Diffusion bonding requires T > 0.5*Tm, clean surfaces (Ra < 0.4um preferred), and inert atmosphere or vacuum. Joint efficiency can reach 90-100% of base metal.

Reference

Diffusion Bonding: D = D0 * exp(-Q/(R*T)) (Arrhenius equation) Diffusion depth: x = 2*sqrt(D*t) Homologous temperature: T/Tm (typically 0.5-0.8 for bonding) Higher T and P reduce required hold time