Zirconia nozzles are most commonly used for the continuous casting of steel. Nozzles can be supplied in zirconia or zircon, either as solid nozzles or enclosed within a co-moulded outer body. The composite nozzle method of manufacture allows a nozzle to be manufactured without the use of cement jointing. This system allows the use of a high performance zirconia insert with a lower grade outer material.
Item name: Zirconia nozzle
Specification: Diameter: 3mm , outer diameter: 16.7mm , length: 85mm .
Product Description: Zirconia nozzle is fog nozzle drying equipment.Zirconia nozzle is with a sensitive electrical performance parameters, mainly used in oxygen sensors, solid oxide fuel cells (SolidO xideFu elCe ll, SO FC) and high-temperature heating body and other fields.
Zirconia is often more useful in its phase 'stabilized' state. Pure Zirconia when heated goes through disruptive phase changes. By adding small percentages of yttria, these phase changes are eliminated, and the material has better thermal, mechanical and electrical properties. In some cases, the tetragonal phase can be metastable. If sufficient quantities of the metastable tetragonal phase is present, then an applied stress, magnified by the stress concentration at a crack tip, can cause the tetragonal phase to convert to monoclinic, with the associated volume expansion. This phase transformation can then put the crack into compression, retarding its growth, and enhancing the fracture toughness. This mechanism is known as transformation toughening, and significantly extends the reliability and lifetime of products made with stabilized zirconia.
No comments:
Post a Comment