Ultrafine Micron Flake Silver Powder for conductive paste

Ultrafine Micron Flake Silver Powder for conductive paste 

Specification we offer for micron flake silver powder: 

Particle size: 1-3um / 3-5um / 5-10um 

Purity: 99.99%

Morphology: flake

CAS NO. : 7440-22-4

Appearance:  silver powder with metallic luster

MOQ: 100g

Package: double anti-static bags

Application: Conductive paste, etc

When flake silver powder is used as a conductive filler to form a conductive path, because the particles are in line or surface contact, compared with the point contact of spherical silver powder, flake silver powder has relatively lower electrical resistance; at the same time, the specific surface area of flake silver powder is relatively low. Spherical silver powder is larger, and its surface activation energy is lower than that of spherical or spheroidal silver powder, so its degree of oxidation and oxidation tendency is lower; in addition, flake silver powder has a wider range of deflection and resistance to flexure, cracking and elongation, which can greatly improve the performance of electronic components. reliability.

Ceramic capacitor electrode silver paste is one of the important materials for the production of ceramic capacitors. It is generally printed on the ceramic substrate by high-speed and high-resolution screen printing, and the electrodes are formed after drying and high-temperature sintering. The conductive silver paste is mainly composed of silver powder, glass powder, organic carrier and additives. Compared with spherical silver powder, flake silver powder has more advantages.

The dispersibility of the silver powder has a significant impact on the printing performance of the silver paste. The paste prepared by the silver powder with fine particles and good dispersibility is suitable for screen printing.
The silver paste thick film made from the smooth surface of the flake silver powder is denser, the thick film has greater adhesion and better conductivity.
The matching degree between the silver paste made of flake silver powder and the ceramic substrate is also better, the connection is tight, there is no gap, the electrode made of the silver paste made has good electrical properties, and the capacitor prepared by using it has large capacitance and capacitance. The loss is small.