High-pressure studies of high-concentration phases of the Ti-H system
High-pressure studies of high-concentration phases of the Ti-H system
复制标题
DOI：
10.1016/0925-8388(95)01836-0
复制
发表时间：
1995-12-15
影响因子：
6.2
通讯作者：
Fukai, Y
中科院分区：
文献类型：
--
作者：
Nakamura, K;Fukai, Y
在高压（5 GPa）和高温（小于或约1100℃）下对Ti-H体系进行原位x射线衍射，结果表明，在高氢浓度下，Ti-H体系发生了两种不同的相变。[H]/[Ti]大于或类似于2，由于氢的吸收-解吸而发生可逆转变，由于金属原子空位的形成而发生不可逆转变。讨论了M-H体系相图中缺陷氢化物相形成的一般含义。
In situ X-ray diffraction at high pressure (5 GPa) and high temperatures (less than or approximately 1100 degrees C) of the Ti-H system revealed that two different kinds of phase transition take place at high hydrogen concentrations. [H]/[Ti]greater than or similar to 2, a reversible transition due to absorption-desorption of hydrogen and an irreversible transition due to the formation of metal-atom vacancies. The general implication of the formation of defect-hydride phases in the phase diagrams of M-H systems is discussed.