TY - JOUR
T1 - Amorphous Zr-based foams with aligned, elongated pores
AU - Cox, Marie E.
AU - Mathaudhu, Suveen N.
AU - Hartwig, K. Ted
AU - Dunand, David C.
N1 - Funding Information:
One of the authors (MEC) was supported by a National Science Foundation Graduate Research Fellowship. The authors acknowledge the experimental help of Larry Jones, Materials Preparation Center, Ames Laboratory (United States Department of Energy), and Robert Barber of Texas A&M University.
PY - 2010/7
Y1 - 2010/7
N2 - Interpenetrating phase composites are created by warm equal channel angular extrusion (ECAE) of blended powders of amorphous Zr58.5Nb 2.8Cu15.6Ni12.8Al10.3 (Vit106a) and a crystalline ductile metal (Cu, Ni, or W). Subsequent dissolution of the continuous metallic phase results in amorphous Vit106a foams with ̃40 pct aligned, elongated pores. The extent of Vit106a powder densification in the composites improves with the strength of the crystalline metallic powder, from low for Cu to high for W, with a concomitant improvement in foam compressive strength, ductility, and energy absorption.
AB - Interpenetrating phase composites are created by warm equal channel angular extrusion (ECAE) of blended powders of amorphous Zr58.5Nb 2.8Cu15.6Ni12.8Al10.3 (Vit106a) and a crystalline ductile metal (Cu, Ni, or W). Subsequent dissolution of the continuous metallic phase results in amorphous Vit106a foams with ̃40 pct aligned, elongated pores. The extent of Vit106a powder densification in the composites improves with the strength of the crystalline metallic powder, from low for Cu to high for W, with a concomitant improvement in foam compressive strength, ductility, and energy absorption.
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U2 - 10.1007/s11661-009-0039-3
DO - 10.1007/s11661-009-0039-3
M3 - Article
AN - SCOPUS:77955771384
SN - 1073-5623
VL - 41
SP - 1706
EP - 1713
JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
IS - 7
ER -