Hydrogen consentration meter utilizing a diffusion tube composed of 2 1/4 C r

Patent · 31 December 1978

OSTI ID:863306

Roy, Prodyot ^[1]; Sandusky, David W ^[2]; Hartle, Robert T ^[2]

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1. Saratoga, CA
2. San Jose, CA

A diffusion tube hydrogen meter for improving the sensitivity and response time for the measurement of hydrogen in liquid sodium. The improved hydrogen meter has a composite membrane composed of pure nickel sleeve fitted, for example, over a 2 1/4 Cr-1 Mo steel or niobium diffusion tube. Since the hydrogen permeation rate through 2 1/4 Cr-1 Mo steels is a factor of four higher than pure nickel, and the permeation rate of hydrogen through niobium is two orders of magnitude greater than the 2 1/4 Cr-1 Mo steel, this results in a decrease in response time and an increase in the sensitivity.

• DOE Contract Number: E(11-1)-2395
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4143316
• OSTI ID: 863306
• Country of Publication: United States
• Language: English

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/324/73/96/204/976/
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