Chemical Specification (Component) for the custom in (Zn) 99,995% (Pb) 0,6% (Cd) 0,02% (Fe) 0,08% (Cu) 0,07%
Zinc is specified as below:
Aluminum doped zinc oxide (AZO) films are prepared by rf magnetron sputtering on glass or Si substrates using specifically designed ZnO targets containing different amount of Al2O3 powder as the Al doping source.
The structural, electrical, and optical properties of the AZO films are investigated in terms of the preparation conditions, such as the Al2O3 content in the target, rf power, substrate temperature and working pressure.
The crystal structure of the AZO films is hexagonal quartzite. The orientation, regardless of the Al content, is along the c axis perpendicular to the substrate.
The doping concentration in the film is 1.9 at.?% for 1 wt?% Al2O3 target, 4.0 at.?% for 3 wt?% Al2O3 target, and 6.2 at.?% for 5 wt?% Al2O3 target.
The resistivity of the AZO film prepared with the 3 wt?% Al2O3target is ~ 4.7Ã?10-4 O?cm, and depends mainly on the carrier concentration.
The optical transmittance of a 1500-Ã?-thick film at 550 nm is ~ 90%. The optical band gap depends on the Al doping level and on the microstructure of the films, and is in the range of 3.46?3.54 eV. The optical band gap widening is proportional to the one-third power of the carrier concentration.
Leads
Composition structure
1. There must be no molten slag, particulate oxygen, inclusions and external pollution on the surface of lead ingots.
2. Lead ingots must not have cold partitions, and must not have flash burrs larger than 10mm (repairing is allowed).
Sign
1. Each lead ingot will be cast or printed with the trademark and batch number.
2. Use paint that is not easy to fall off to mark the brand mark on the lead ingot. The color and position of the mark should meet the requirements.
3. Each bundle of lead ingots should have a striking and difficult to fall off mark, indicating the manufacturer's name, product name, brand number, batch number and net weight.
Single weight of small ingot
48kg�±3kg,42kg�±2kg,40kg�±2kg,24kg�±1kg;
Single weight of large ingot
950 kg�±50kg,500 kg�±25kg
Package
The small ingots are bundled and packed with non-corrosive packaging tape. Large ingots are supplied as bare ingots
Remelted Lead Ingots are being produced from Raw Lead / Battery Scraps / Lead Scraps and other scraps of Lead in the specially designed Blast Furnace. The Scrap is obtained and is mixed with other reducing agents in the Furnace.
