Zinc Oxide Micro Powder

Zinc Oxide Micro Powder

Zinc oxide Micro Powder is an inorganic compound with the formula is a white powder that is insoluble in water. It is used as an additive in numerous materials and products including cosmetics, food supplements, rubbers, plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes. Although it occurs naturally as the mineral zincite, most zinc oxide is produced synthetically. ZnO is a wide-bandgap semiconductor of the semiconductor group.

The native doping of the semiconductor due to oxygen vacancies or zinc interstitials is n-type. Other favorable properties include good transparency, high electron mobility, wide bandgap, and strong room-temperature luminescence. Those properties are valuable in emerging applications for transparent electrodes in liquid crystal displays, energy-saving or heat-protecting windows, and electronics as thin-film transistors and light-emitting diodes

Physical Properties of Zinc Oxide Micro Powder

Zinc oxide crystallizes in two main forms, hexagonal wurtzite and cubic zincblende. The wurtzite structure is most stable at ambient conditions and thus most common. The zincblende form can be stabilized by growing on substrates with a cubic lattice structure. In both cases, the zinc and oxide centers are tetrahedral, the most characteristic geometry for Zn. It converts to the rocksalt motif at relatively high pressures about 10 GPa. T

he many remarkable medical properties of creams containing ZnO can be explained by its elastic softness, which is characteristic of tetrahedral coordinated binary compounds close to the transition to octahedral structures. Hexagonal and zincblende polymorphs have no inversion symmetry a reflection of a crystal relative to any given point does not transform it into itself. This and other lattice symmetry properties result in piezoelectricity of the hexagonal and zincblende ZnO, and pyroelectricity of hexagonal ZnO.

Mechanical properties of Zinc Oxide Micro Powder

ZnO is a relatively soft material with an approximate hardness of 4.5 on the Mohs scale. Its elastic constants are smaller than those of relevant semiconductors, such as GaN. The high heat capacity and heat conductivity, low thermal expansion, and high melting temperatures are beneficial for ceramics.

The E2 optical phonon exhibits an unusually long lifetime of Among the tetrahedrally bonded semiconductors, it has been stated that has the highest piezoelectric tensor, or at least one comparable to that of GaN and AlN. This property makes it a technologically important material for many piezoelectrical applications, which require a large electromechanical coupling. Therefore ZnO has been in forms of thin-film one of the most studied resonator material for thin-film bulk acoustic resonators.

Zinc Oxide Micro Powder Related Information

Storage Conditions:

Airtight sealed, avoid light, and keep dry at room temperature.