钛吸氢和放氢动力学

Kinetics of Hydrogen Absorption andDesorption by Titanium

用定容法研究了５５０～７８０℃范围内钛的吸氢和放氢动力学。吸氢和放氢的激活能分别为７８．６和１０５．６ｋＪ／ｍｏｌ。吸氢由相界面过程控制，而氢原子穿过表面氧化膜是放氢速率控制步骤。

Hydrogen absorption and desorption kinetics of titanium was studied at temperatures of 550～780℃ by using the constant volu memethodThe activation energies for absorption and desorption are 786 and 1056kJ/mol,respectivelyHydrogen absorption is controlled by the phase interface process,whereas the rate controlling step for desorption is hydrogen transport through the surface oxide film