ZnO 997

ZnO 997

Tá airíonna uathúla den scoth ag an varistor ZnO déanta as ZnO 997 cosúil le comhéifeacht mhór neamhlíneach, am freagartha gairid, voltas iarmharach íseal, comhéifeacht teocht voltais bheag, agus sruth sceite beag. Dá bhrí sin, forbairt ZnO 997 in ZnO varistor Tá ról lárnach ag an bhfeidhmchlár.

*Room temperature stable ZnO 997 has a wurtzite crystal structure, in which oxygen ions are arranged in a hexagonal close-packed manner, zinc occupies half of the tetrahedral gap, and each ion is not strictly tetrahedral symmetry.

*The hardness of zinc oxide is about 4.5, which is a relatively soft material. The elastic constant of zinc oxide is smaller than that of group III-V semiconductor materials such as gallium nitride.

*ZnO 997 has good thermal stability and thermal conductivity, high boiling point and low thermal expansion coefficient, which is useful in the field of ceramic materials.

*The band gap of ZnO 997 energy band is 3.2-3.4eV, and ZnO 997 should be an insulator at room temperature. Due to the large structural gap, Zn can easily enter the gap and form Frenkel defects. Or because ZnO 997 decomposes at high temperature to produce excessive zinc and ionizes, it enters the gap and forms interstitial ions, causing shared movement of electrons in the structure to form an n-type semiconductor. Among various semiconductor materials with a tetrahedral structure, ZnO 997 has the highest piezoelectric tensor. This characteristic makes zinc oxide one of the important materials for mechanical and electrical coupling.

* Tá Pure ZnO 997 gan dath agus trédhearcach. Tugann an bhearna banda ardfhuinnimh buntáistí do ZnO 997 a bhaineann le voltas miondealaithe ard, cumas láidir réimse leictreach a choinneáil, torann leictreonach íseal, agus cumhacht ard marthanach. Athróidh ZnO 997 measctha le cion áirithe ocsaíd mhaignéisiam nó ocsaíd caidmiam an bhearna banda fuinnimh idir 3-4â € ‚eV.

Is amhábhar ardchaighdeáin é ardchobhsaíocht ghrád friotaíochta MST ZNO 997 chun varistor ZnO a dhéanamh.