In Situ HRTEM Observations of Spreading Reactive Molten Alloy on Ceramic Substrates

Chihiro Iwamoto; Shunichiro Tanaka

doi:10.4028/www.scientific.net/AST.64.83

Paper Titles

Effect of Polymorphic Zirconia Phases on the Mechanical and Wear Properties of Cr₃C₂-NiCr Cermets
p.59

Study on the Development of Resource-Saving High Performance Slurry - Polishing/CMP for Glass Substrates in a Radical Polishing Environment, Using Manganese Oxide Slurry as an Alternative for Ceria Slurry
p.65

Mechanical Properties of Silicon Nitride Using RUS & C-Sphere Methodology
p.71

Characterization and Performance of Glass-Ceramic Sealants for SOECs
p.76

In Situ HRTEM Observations of Spreading Reactive Molten Alloy on Ceramic Substrates
p.83

Ultrarapid Transient-Liquid-Phase Bonding of Advanced Ceramics
p.88

Overview on Wetting and Joining in Transition Metals Diborides
p.98

The Quality of Brazed Ceramic and Cemented Carbide Joints - A Mechanical and Metallurgical Assessment
p.108

Temperature Modeling for Friction Welding Process between Ceramic and Metal
p.115

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 64In Situ HRTEM Observations of Spreading Reactive...

In Situ HRTEM Observations of Spreading Reactive Molten Alloy on Ceramic Substrates

Abstract:

In-situ HRTEM technique was applied to various substrates and the reaction processes between substrates and molten alloy were compared. Substrates used were SiC, Si3N4, Si wafers, an amorphous carbon film, and a carbon nanotube. Ti-containing Ag-Cu eutectic alloy foil was placed on the substrate and the combined specimen mounted on the heating holder of an HRTEM and heated in the microscope to melt the alloy foil. In the case of SiC, Si3N4, carbon materials, the molten alloy spreading on the substrates were observed after melting of the alloy. SiC polar plane nano-steps appeared with the SiC dissociation by the molten alloy. On the surface of the carbon nanotube, thin film precursor spreading was observed. In contrast, Si reaction with the molten alloy produced big holes at the contacted area and molten alloy spreading was not observed.