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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.4; Jul 7-11, 2003; Leganes, Madrid, Spain >EFFECT OF EXCESS VACANCIES ON HYDROGEN ABSORPTION-DESORPTION CHARACTERISTICS IN RAPIDLY SOLIDIFIED B2 TiCo
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EFFECT OF EXCESS VACANCIES ON HYDROGEN ABSORPTION-DESORPTION CHARACTERISTICS IN RAPIDLY SOLIDIFIED B2 TiCo

机译：过量空位对快速凝固B2 TiCo氢吸收-脱附特性的影响

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摘要

Rapidly-solidified ribbons of B2 TiCo were produced by a twin-roll method. Some of the ribbons were annealed at 973K for 12h in a vacuum. It is confirmed by XRD that the as-spun ribbons already have the B2 structure. The lattice parameter of as-spun ribbons is increased from 2.9905A to 2.9931 A by annealing at 973K for 12h, indicating that thermal vacancies retained in the as-spun ribbons by the rapid solidification were removed out during the heat treatment. Pressure-composition i sotherms w ere m easured for b oth t he a s-spun and annealed r ibbons a 11 emperature from 403K to 473K using an automatic Sieverts' type apparatus. The variation in hydrogen absorption capability dependent on lattice parameter change is found in the as-spun and annealed ribbons. Although both of the as-spun and annealed ribbons have almost the same lattice parameters, hydrogenation characteristics are clearly different between them.
机译：通过双辊法生产快速固化的B2 TiCo带。某些碳带在973K真空中退火12h。 XRD证实，初生碳带已经具有B2结构。通过在973K退火12h，将初生带材的晶格参数从2.9905A增加到2.9931A，这表明在热处理过程中，快速固化保留在初生带材中的热空位被消除了。通过使用自动Sieverts型设备对从403K到473K的11级温度进行旋转和退火处理，可以测量压力组合物的温度。在初生和退火带中发现了取决于晶格参数变化的氢吸收能力的变化。尽管初生和退火带均具有几乎相同的晶格参数，但它们之间的氢化特性却明显不同。

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