Amorphous Hf-based foams with aligned, elongated pores

作者：Cox Marie E; Kecskes Laszlo J; Mathaudhu Suveen N; Dunand David C^*

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2012, 533: 124-127.

DOI：10.1016/j.msea.2011.11.032

• Bulk amorphous alloy
• Cellular materials
• Porous materials
• Equal channel angular processing
• Hafnium-based glassy alloy

Warm equal channel angular extrusion is used to consolidate a blend of amorphous Hf44.5Cu27Ni13.5Ti5Al10 and crystalline W powders. Dissolution of the W phase results in similar to 60% aligned, elongated pores within an amorphous Hf-based matrix exhibiting ductility in compression, but at lower strengths than similar amorphous Zr-based foams due to incomplete bonding between Hf-based powders.

• 出版日期2012-1-30
• 单位西北大学