CAJ | 학술논문

采用溶胶—凝胶技术,以草酸铌为原料、乙二醇为酯化剂来制备钛酸锶(SrTiO3)掺杂铌酸钾钠(Na0.5K0.5) NbO3无铅压电陶瓷粉体.应用TG/DSC技术对干凝胶的成分及溶胶形成过程中的机理进行了研究,使用XRD和SEM对掺杂SrTiO3的纳米粉体进行了物相结构和表面形貌的表征,并研究了SrTiO3的最佳掺杂比例和烧结温度及其对压电性能的影响.
채용용효—응효기술,이초산니위원료、을이순위지화제래제비태산송(SrTiO3)참잡니산갑납(Na0.5K0.5) NbO3무연압전도자분체.응용TG/DSC기술대간응효적성분급용효형성과정중적궤리진행료연구,사용XRD화SEM대참잡SrTiO3적납미분체진행료물상결구화표면형모적표정,병연구료SrTiO3적최가참잡비례화소결온도급기대압전성능적영향.
In this research we adopted a sol-gel method,with niobium oxalate as niobate resource, glycol as esterifying agent to obtain SrTiO3-KNN lead-free piezoelectric ceramics powder. TG/DSC was adopted to study the compositions of the xerogel and all the synthesis process, in order to find out the mechanizations of the sol-gel process. The crystal structure and surface feature was characterized and observed by XRD and SEM,the SrTiO3 best doping ratio and effect of sintering temperature on electrical properties were studied.