Abstract
Carbon dioxide laser was irradiated on the graphite particles adhered on a copper plate through waterglass in order to prepare graphite-dispersed copper composite on a surface of a copper plate. The particles which were not removed with ultrasonic cleaning were judged to be adhered on the copper. The graphite particles at the laser spot were heated with the laser ablation, and these particles adhered on the copper plate. This originates in that wettability between graphite and molten copper was improved at a higher temperature by the laser heating. The carbon content at the laser spot decreased with the increase in the laser irradiation time, because the graphite particles at the laser spot were removed by the laser trapping. The electric resistance reduced to around 1 Ω. The graphite particles at the outside of the laser spot adhered on the copper plate through the waterglass by conduction heat from the laser spot. The particles were eliminated by the ultrasonic cleaning during insufficient heat hardening of waterglass. Therefore, carbon content increased with the increased in the laser-irradiation time. The electric resistance at the outside of the laser spot increased to around 17 Ω.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
