" is a company operating within many ranges and offers function ceramics , high temperature ceramics as well as electroceramics "作为一家具有丰富经验的经济型企业,为您提供电瓷,功能陶瓷,高温陶瓷范围内效果显著的、高价值的产品。
Second , srtios - based double function ceramic was achieved with prepared strontium titanate nanocrystalline powder materials by single - fired process 然后,在制备的纳米钛酸锶粉体材料的基础上,采用一次烧成工艺制备srtio _ 3基电容-压敏双功能陶瓷器件。
For srtio3 - based double function ceramic , it is well know that the suitable grain size , the semiconducting of grain and the insulating of grain boundary are important keys 在srtio _ 3基双功能陶瓷的制备中,最关键的是晶粒生长、晶粒半导化和晶界绝缘化。
This product is widely applied in the industries such as high - grade pigment , architecture ceramic , structure ceramic , function ceramic , electron ceramic , refractory , corundum products , grinding material 该产品广泛应用于高档色料建筑陶瓷结构陶瓷功能陶瓷电子陶瓷定型或者不定型耐火材料刚玉制品研磨材料各种行业。
The method of grind , ti / sr ratio are researched in solid phase synthesis process . second , on the base of strontium titanate powder materials prepared , srtio3 - based double function ceramic were fabricated by the conventional ceramic process 然后,在制备的钛酸锶粉体材料的基础上,采用传统的陶瓷工艺制备srtio _ 3基电容-压敏双功能陶瓷器件。
Grain size , the semiconducting of grain and the insulating of grain boundary were keys to the single - fired process of preparation of srtio3 - based double function ceramic , and affected directly the dielectric and varistor properties 在srtio _ 3基双功能陶瓷的一次烧成制备过程中,最关键的是晶粒生长、晶粒半导化和晶界绝缘化,它们直接影响陶瓷的压敏和介电性能。
Ultrafine sno2 powder , which has the surface structure and physical function , has been widely used in the fields of function ceramics , information materials and photosensitive materials as a new type of function materials and are comprehensively discussed in this paper 介绍了超细sno _ 2作为新型功能材料,由于兼备了超细粒子和二氧化锡的表面结构与物理性能,在功能陶瓷、信息材料以及光敏材料等方面得到了越来越广泛的应用。
But the grain growth , grain semiconduction and grain boundary insulation were influenced by many factors , such as the type and contents of dopants , sintering temperature and so on . therefore , in this thesis the effect of the restore sintering temperature , the oxygenize temperature , the donor and acceptor dopant on the dielectric and varistor properties of devices were studied . with sem , the microstructure of srtio3 - based double function ceramic was analyzed 而晶粒生长、晶粒半导化和晶界绝缘化受到多种因素的影响,诸如杂质的种类和含量、烧成温度等,因此本论文研究了还原烧成温度、中温氧化温度、施主和受主掺杂等对srtio _ 3基陶瓷的压敏和介电性能的影响,并借助于sem分析对srtio _ 3基双功能陶瓷的微观结构进行了分析。
Research of this thesis include two parts mainly , first part include the preparation of srtio3 powder materials by sol - gel process and solid phase synthesis process . the second part , on the base of strontium titanate powder materials prepared , srtio3 - based capacitor - varistor double function ceramic were fabricated by the conventional ceramic process 第二部分是在制备的钛酸锶粉体材料的基础上,通过掺杂施主、受主离子对钛酸锶材料进行半导化,制备电容-压敏双功能器件,并对两种方法制备的元件性能分析比较。
The study described in this thesis consists of two parts : the preparetion of nanocrystalline powder materials by sol - gel process and the preparation of the srtios - based capacitor - varistor double function ceramics device . first , strontium titanate nanocrystalline powder materials were prepared from sr ( no3 ) 2 - ti ( oc4h9 ) 4 - hbo - ct ^ cooh system by the sol - gel method 本论文的研究主要包括两部分,一部分是用溶胶-凝胶法制备纳米钛酸锶粉体材料;另一部分是用合成的纳米钛酸锶粉体材料制备电容-压敏双功能陶瓷器件。