レーザ照射によるガラス表面への金属の堆積

概要

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In this paper, a new method of selective deposition on glass substrates is proposed. Metal powders placed on a glass substrate are irradiated by a laser bam through the glass from the other side and consequently the powders are sintered on the glass substrates. Soda glass, Pyrex glass and silica glass were used as substrates from the viewpoint of their thermal properties, and stainless steel (SUS316L) powders with grain size of 7 μm and 60 μm were chosen. An Ar ion laser beam was used because glass is highly transparent. Fine metal powder was deposited on every glass substrate, and the size of the deposited metal powder was controllable from 120 μm to 840 μm in diameter, and from 45 μm to 330 μm in height by varying the laser power and irradiation time. In the experiment, changing the glass substrate revealed that the adherence of the metal powder was the strongest on the soda glass of all the glasses. Also varying atmosphere and powder size clarified that the metal powder adhered to glass better in air than in vacuum and with fine powder than coarse powder.
2000-11-05