Hydrogen Permeation Characteristics of Dense Pd/Y Alloy Diffuser

来源 :Annual Report of China Institute of Atomic Energy | 被引量 : 0次 | 上传用户:yyaizy
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A Pd/Y diffuser(8 Pd/Y tubes,length 190 mm,i.d.2 mm,thickness 80μm,and surface area 95.5 cm2)was investigated using loading pressure from 103 Pa to 1.2×105 Pa and temperature from 623 K to 723 K.Fig.1 shows the curve between steady-state H2 permeation flux and loading pressure,and pressure exponent of n=0.5(pure diffusion-limited step).Fig.2 and Fig.3 show Sievert A Pd / Y diffuser (8 Pd / Y tubes, length 190 mm, id2 mm, thickness 80 μm, and surface area 95.5 cm 2) was employed using loading pressure from 103 Pa to 1.2 × 10 5 Pa and temperature from 623 K to 723 K .Fig.1 shows the curve between steady-state H2 permeation flux and loading pressure, and pressure exponent of n = 0.5 (pure diffusion-limited step) .Fig.2 and Fig.3 show Sievert
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