%0 Journal Article
%T Effects of Li Substitution and Sintering Temperature on Properties of Bi0.5(Na,K)0.5TiO3 Lead-Free Piezoelectric Ceramics<br>
%A MING Bao-Quan
%A WANG Jin-Feng
%A ZANG Guo-Zhong
%A <br>
%J 中国物理快报
%D 2008
%I 
%X Bi0.5(Na0.72K0.28-xLix)0.5TiO3 (BNKLT-100x) lead-free piezoelectric ceramics are synthesized by conventional solid state sintering techniques. The dielectric and piezoelectric properties of the BNKLT-100x ceramics as a function of Li content are systematically investigated. It is found that not only Li content but also the sintering temperature has a strong effect on the piezoelectric properties of BNKLT. The piezoelectric constant d33 of BNKLT varies from 120 to 252pC/N in the Li content range from 0.03 to 0.16. In the sintering temperature range from 1080 to 1130°C, the d33 value of BNKLT-6 changes from 200pC/N to 252pC/N. The BNKLT-6 sample sintered at 1100°C has the highest piezoelectric constant d33 of 252pC/N, with the electromechanical coupling factors kp of 0.32 and kt of 0.44.
%K 77
%K 84
%K -s
%K 77
%K 84
%K Dy
%K 77
%K 65
%K -j<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=97245C3DBB21C31C793C96D36DA69BBA&yid=67289AFF6305E306&vid=C5154311167311FE&iid=F3090AE9B60B7ED1&sid=E3779F0D82BC5477&eid=592EC1AE1F90EC3D&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0