Novel Hydrides in Li-TM Systems Synthesized by High Pressure Method (TM=Ti, Zr, Hf)
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- Kataoka Riki
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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- Sato Toyoto
- WPI Advanced Institute for Materials Research, Tohoku University
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- Kuriiwa Takahiro
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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- Kamegawa Atsunori
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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- Okada Masuo
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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Abstract
New Li-based hydrides have been prepared under GPa-order by using a cubic-anvil-type apparatus. Novel compounds in Li-Zr and Li-Hf systems were obtained at 973 K under 5 GPa. For Li-Zr system, a novel compound has a primitive cubic structure with a=0.42188(3) nm. The compound was thermally stable up to 723 K under Ar flow. For Li-Hf system, two novel compounds were successfully synthesized. Crystal structures of these compounds were found to be a primitive cubic (a=0.4209(2) nm) and a body centered cubic (a=1.08369(4) nm). A structural model of the new compounds with the body-centered cubic structure was found to be an Ag8Ca3-type structure. The novel compound with a primitive cubic structure was thermally stable up to 723 K, but the compound with the body centered cubic structure was decomposed at 600 K with an endothermic reaction.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 52 (1), 49-53, 2011
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679226252160
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- NII Article ID
- 10027672195
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 10926905
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed