Conductive materials can conduct current well because they have a large number of charged particles that can move freely under the action of an electric field, including conductor and superconducting materials.
The following are the four most widely used metal conductive materials.
Pure silver conductive powder (Ag99.99%)
1) Flake:
Common available particle size: <1um, 1-3um, 3-5um, 5-8um, 8-10um, particle size, and apparent density can be customized according to requirements. Flake silver powder with low apparent is available.
Appearance: silver gray with metallic luster
Application: Flake silver powder is a high-performance conductive filler material with good oxidation resistance. Flake Ag particle is the main raw material for making conductive coatings, membrane switches, conductive inks, conductive rubber, conductive plastics, and conductive ceramics.
Flake Ag powder is an ideal raw material for good low-temperature polymer slurry, conductive paint and electromagnetic shielding paint. The coating prepared with flake silver powder has good fluidity, anti-settling and large spray area.
2) Spherical silver conductive powder:
Common particle size: <1um, 1-3um, 3-5um，5-8um，etc
Application: Near-spherical silver powder is mainly used as conductive filler for high-temperature sintered conductive paste.
There is no absolute standard for silver powder as a conductive filler. The choice of silver powder should be based on the corresponding adhesive, the target conductor material, the physical and chemical properties of the film, and the reliability requirements.
Silver coated copper conductive powder (common particle size is 1-3um, 3-5um, 5-8um, 10um, Ag content ranges from 3%-35%)
Features:
1) Silver coated copper powder has adjustable superfine particle size.
2) Ag coated Cu powder has several shapes, such as spherical, flake, dendritic, etc.
3) Silver-coated copper powder has excellent conductivity and lower cost, which can replace some applications of pure silver powder.
4) Silver-coated copper powder has good oxidation resistance and dispersion, and can be used in medium and low temperature slurry.
Application range: It can be widely used in conductive adhesives, conductive coatings, polymer pastes, and various industries that require electrical conductivity and static electricity, electromagnetic shielding, and surface metallization of non-conductive materials.
Silver-coated copper powder can be widely used in conductive adhesives, conductive coatings, polymer pastes, and various fields of microelectronics technology that need to conduct electricity and static electricity, and non-conductive materials surface metallization. It is a new type conductive composite powder. Ag-Cu powder is widely used in the fields of electrical conductivity and electromagnetic shielding in various industries such as electronics, electromechanics, communications, printing, aerospace, and military industries, such as computers, mobile phones, integrated circuits, various electrical appliances, electronic medical equipment, electronic instruments, etc., so that products are not interfered by electromagnetic waves, while reducing the harm caused by electromagnetic radiation to the human body, as well as the conductivity of colloids, circuit boards, and other insulators, to make the insulated object have good electrical conductivity.
Pure copper powder (Cu 99%+)
Common particle size: <1um, 1-3um, 3-5um, 5-8um, etc.
Features: spherical and flake shape, uniform particle size, good dispersion, high crystallinity
Applications: Manufacture of terminals and internal electrodes of multilayer ceramic capacitors(MLCC), electronic components and electronic pastes, etc.
Pure nickel powder (Ni 99.7%): Common particle size: 1-3um
As a functional conductive filler, nickel powder can be added in coatings, adhesives, inks, plastics, rubbers, and can be made into conductive, electromagnetic shielding, anti-static products, to be used in electronics, electromechanics, communications, printing, aerospace, weapons and other industrial sectors in the field of electrical conductivity. Such as computers, mobile phones, electronic medical equipment, electronic instruments and meters.
Guangzhou Hongwu Material Technology Co., Ltd. supplies the conductive materials mentioned above, with reliable high and stable quality, reasonable prices and excellent customized service.