A novel process for fabricating Mg{sub 2}Ni
The alloy, Mg{sub 2}Ni, has a number of desirable properties for use as a lightweight reversible hydride for hydrogen storage applications. It has relatively good storage capacity (3.6 wt.% H{sub 2} as Mg{sub 2}NiH{sub 4}) and a higher plateau pressure and lower operating temperature than MgH{sub 2}. A novel low temperature (<300 C) process is reported that does not require melting of the alloy constituents to achieve a single phase alloy of Mg{sub 2}Ni. The process results in smaller particle dimensions without sacrifice in product yield and eliminates the need for post processing to achieve homogenization and particle sizing. It can also be implemented in-situ in storage vessels to greatly simplify fabrication while providing more material predictability during the activation process. The process is described and the hydride properties of the product are reported and compared to conventionally formed alloys.
- Research Organization:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 676887
- Report Number(s):
- SAND-98-8512C; CONF-980572-; ON: DE98052852; TRN: AHC29821%%20
- Resource Relation:
- Conference: 1998 Society for the Advancement of Material and Processing Engineering, Anaheim, CA (United States), 31 May - 4 Jun 1998; Other Information: PBD: [1998]
- Country of Publication:
- United States
- Language:
- English
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