{"title":"Preparation and Performances of KNN-based Lead-free Transparent Ceramics","authors":"Xu Zhuo","doi":"10.7498/aps.61.197703","DOIUrl":"https://doi.org/10.7498/aps.61.197703","url":null,"abstract":"Using conventional solid-phase sintering technique combined with a special atmosphere controlling technique,KNN-based lead-free transparent ceramics,x Ba(Sc0.5 Nb0.5)O3-(1-x)(K0.5N0.5)NbO3(xBSN-(1-x) KNN in simplified form),are prepared and investigated.The XRD,micro-structure,dielectric performance and optical transparency are investigated.The results show that such ceramics are of pseudocubic-Perovskite structure without any other impure phase.The grain size is comparable to the light wavelength and the grains are highly condensed without evident crystal borders.When x=0.05,d33 can reach up to 110 pC/N maximally.Such ceramics are of excellent transparency and the optical transparency reaches about 47 % in the visible light range,and the optical transparency is near 70 % at the near-infrared wavelength 2 500 nm.Such ceramics are a type of environment-friendly lead-free transparent ceramics which is promising in replacing lead-based transparent ceramics.","PeriodicalId":395237,"journal":{"name":"Journal of Air Force Engineering University","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116866060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}