Abstract:
A silver bromide emulsion containing cadmium iodide and coated on a substrate is employed to produce a latent silver image thereon. This latent image is developed in a high-resolution pattern developer to produce a silver image which when heated to a temperature of 200* to 450* C. produces an image having an electrical conductivity closely approaching that of bulk silver. The high-resolution pattern developer results in a feltlike structure of silver wires which when heated at higher temperatures decreases in reflectivity.
Abstract:
A gelatin medium is stirred in a three-chamber container which includes a rotating paddle turning at an adjustable constant speed in the lowest one of the chambers. Potassium halide and silver nitrate solutions are added to the other chambers at a constant velocity by an ejecting system driven at an adjustable constant velocity. The ejection system includes syringes which contain the above solutions and which dispense equal volumes of each solution per unit time into a gelatin medium in the container. The container is surrounded by a water jacket maintained at a constant temperature by a heating element controlled by an adjustable thermostat.