Fast mobility induced self-lubrication at metallic glass surface

The wettability of Pb-free Sn-based solder over the Cu-based Cu60Zr30Ti10 bulk metallic glass surface was investigated. We observed that the as-polished surface was nonwetting for the solder, which was due to the surface oxide layer of ZrOx formed in air. After complete removal of the oxide layer, a thin layer of Ag was deposited on the clean Cu60Zr30Ti10 surface. The Ag-covered Cu60Zr30Ti10 surface showed relatively high resistivity to the reoxidation even in air, and thus the wettability of the Cu60Zr30Ti10 surface for the Sn-based solder was greatly improved.

Download Full-text

Superhydrophobic Zr-based metallic glass surface with high adhesive force

Applied Physics Letters ◽

10.1063/1.4812480 ◽

2013 ◽

Vol 102 (25) ◽

pp. 251603 ◽

Cited By ~ 37

Author(s):

Ning Li ◽

Ting Xia ◽

Liping Heng ◽

Lin Liu

Keyword(s):

Metallic Glass ◽

Glass Surface ◽

Adhesive Force

Download Full-text

A Novel Micro-Scale Plastic Deformation Feature on a Bulk Metallic Glass Surface under Laser Shock Peening

Chinese Physics Letters ◽

10.1088/0256-307x/30/3/036201 ◽

2013 ◽

Vol 30 (3) ◽

pp. 036201 ◽

Cited By ~ 5

Author(s):

Yan-Peng Wei ◽

Bing-Chen Wei ◽

Xi Wang ◽

Guang-Yue Xu ◽

Lei Li ◽

...

Keyword(s):

Plastic Deformation ◽

Metallic Glass ◽

Bulk Metallic Glass ◽

Glass Surface ◽

Laser Shock Peening ◽

Laser Shock ◽

Micro Scale ◽

Deformation Feature ◽

Shock Peening

Download Full-text

Metallic Glass Surface Patterning by Micro-Molding

Manufacturing Engineering and Materials Handling, Parts A and B ◽

10.1115/imece2005-81099 ◽

2005 ◽

Cited By ~ 3

Author(s):

Jeffrey Bardt ◽

Nathan Mauntler ◽

Gerald Bourne ◽

Tony L. Schmitz ◽

John C. Ziegert ◽

...

Keyword(s):

Glass Transition ◽

Metallic Glass ◽

Glass Surface ◽

Surface Patterning ◽

Spatial Proximity ◽

Two Dimensional ◽

Deep Reactive Ion Etching ◽

Metallic Material ◽

Aspect Ratios ◽

Micro Molding

The micro-molding of bulk amorphous metal to create sub-micrometer to sub-millimeter surface features was investigated. The goal was to demonstrate the reproduction of such features in a metallic material from a master. The bulk metallic glass material was embossed between the glass transition and crystallization temperatures. Silicon wafers patterned by deep reactive ion etching were used as masters. The patterns were designed to test the effects and interactions of aspect ratios, geometry, and spatial proximity. In addition to these patterns, a master was developed to mold two-dimensional channel geometries. Comparisons between the replicated features and the molds are provided.

Download Full-text