Effect of Metallic Glass Particle Size on the Contact Resistance of Ag/Metallic Glass Electrode

• Published in: Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2015-06, Vol.46 (6), p.2443-2448
• Main Authors: Park, Jin Man, Park, Keum Hwan, Park, Eun Soo, Hong, Seok-Moo, Kim, Se Yun, Jee, Sang Soo, Lee, Eun Sung, Kim, Suck Jun, Kim, Ki Buem, Kim, Do Hyang, Eckert, Jürgen
• Format: Article
• Language: English
• Subjects: Amorphous materials; Characterization and Evaluation of Materials; Chemistry and Materials Science; Contact; Contact resistance; Electrodes; Emittance; Glass; Materials Science; Metallic glasses; Metallic Materials; Nanotechnology; Particle size; Physical metallurgy; Powder metallurgy; Silver; Structural Materials; Surfaces and Interfaces; Symposium: Bulk Metallic Glasses XI; Thin Films
• ISSN: 1073-5623; 1543-1940
• DOI: 10.1007/s11661-015-2849-9

In this study, electrically conductive Al-based metallic glass (MG) has been applied as an alternative of oxide glass in silver paste. Al 85 Ni 5 Y 8 Co 2 MG powder was produced by gas atomization process and simultaneously classified depending on the size of powder. The wetting behavior of MG was dramatically altered by the degree of crystallinity and the size of MG powder, resulting in the different sinterability of silver (Ag) and contact area between Si emitter and Ag. The Ag electrode with smaller MG powder shows much denser structure of Ag and larger contact area, leading to low contact resistance, 0.69 ± 0.38 at p -type and 0.56 ± 0.13 mΩcm 2 at n -type emitter.