Diffusion bonding

Details Diffusion bonding Diffusion bonding

1966-01-19

1976-06-22

Padgett, Benjamin R.

Metal fusion bonding

Process

Diffusion type

228221, 228234, B23K 3102

Patent

active

039646670

ABSTRACT:
1. A method for joining beryllium to beryllium by diffusion bonding, comprising the steps of coating at least one surface portion of at least two beryllium pieces with nickel, positioning a coated surface portion in a contiguous relationship with an other surface portion, subjecting the contiguously disposed surface portions to an environment having an atmosphere at a pressure lower than ambient pressure, applying a force upon the beryllium pieces for causing the contiguous surface portions to abut against each other, heating the contiguous surface portions to a maximum temperature less than the melting temperature of the beryllium, substantially uniformly decreasing the applied force while increasing the temperature after attaining a temperature substantially above room temperature, and maintaining a portion of the applied force at a temperature corresponding to about maximum temperature for a duration sufficient to effect the diffusion bond between the contiguous surface portions.

REFERENCES:
patent: 3478416 (1969-11-01), Hamilton

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