期刊
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
卷 48A, 期 6, 页码 2949-2959出版社
SPRINGER
DOI: 10.1007/s11661-017-4043-8
关键词
-
资金
- Ministry of Business Innovation and Employment (MBIE), New Zealand
- Australian Institute of Nuclear Science and Engineering (AINSE) Ltd. [P3430]
- Shaanxi Youth Science and Technology New Star Project [2016KJXX-78]
- Shaanxi Science and Technology Co-ordination and Innovation Project [2016KTCQ01-113]
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha, P.R. China
This first-ever study investigated dehydrogenation and microstructural evolution of TiH2 during sintering under vacuum using in situ neutron diffraction, in situ transmission electron microscopy, and ex situ neutron tomography. The densification behavior, microstructure, hydrogen concentration, and in situ phase transformation were reported. The shrinkage, weight loss percentage, and densification of the TiH2 powder compact monotonically increase with sintering temperature, while the open porosity behaves differently; porosity first increases at the initial sintering stage and then decreases during further sintering. The in situ phase transformation observations reveal that dehydrogenation starts from the outer area of either a particle or a powder compact and progressively carries forward into the interior of the particle or the compact. A shrinking core model was proposed to elucidate the dehydrogenation process for a single particle and a powder compact. (C) The Minerals, Metals & Materials Society and ASM International 2017
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据