Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Studies on Preparation of PbNb_2O_6 Micropowder by Liquid-Phase Coating on Solid Particles Method

Li Chengen Ni Huanyao Lu Yongkang Yin Zhiwen (Shanghai Institute of Ceramics,Academia Sinica,200050)  
In this pater,a new method of preparing functional ceramic micropowders is developed byusing liquid phase coating technology on solid particles.This method has following merits:(1)simple and without any special equipment,so that,it is easy to be scaled up into industry;(2)the particle size of the powder is fine and homogeneous;(3) the chemical composition of thepowder has only small deviation from the proposed composition for different batches and theyare rather homogeneous;(4) this method has a good adaptability and can be used to preparedifferent micropowders with composition of two components to more than ten components;(5)this method is specially suitable to prepare those materials containing some difficult dissolvingcomponents and so they are hard to be prepared by liquid-phase method.We have succeededin preparing PbNb_2O_6 micropowder by this method.Its average particle size is smaller than0.5μm.The micropowder is highly dispersive and has a better chemical homogeneity andsintering activity.The experimental results show that the sintering temperature of the ceramicscan be lowered about 100℃,compared with those using the conventional powder technologyand the density of sintered bodies reaches more than 96% of its theoretical value.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved