<P><B>Abstract</B></P> <P>This study investigated the effect of LiNbO<SUB>3</SUB> modification on the dielectric, ferroelectric and electromechanical strain properties of Bi<SUB>1/2</SUB>Na<SUB...
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
https://www.riss.kr/link?id=A107452772
2018
-
학술저널
21138-21144(7쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>This study investigated the effect of LiNbO<SUB>3</SUB> modification on the dielectric, ferroelectric and electromechanical strain properties of Bi<SUB>1/2</SUB>Na<SUB...
<P><B>Abstract</B></P> <P>This study investigated the effect of LiNbO<SUB>3</SUB> modification on the dielectric, ferroelectric and electromechanical strain properties of Bi<SUB>1/2</SUB>Na<SUB>1/2</SUB>TiO<SUB>3</SUB>–SrTiO<SUB>3</SUB> (BNT–ST) lead–free relaxor ceramics. The sintering temperature for lead–free BNT–ST relaxor ceramics was slightly decreased from 1175 °C to 1050 °C by modifying with LiNbO<SUB>3</SUB>. We found that the sintering temperature affects the dielectric behavior of 0.76BNT–(0.24−<I>x</I>)ST–<I>x</I>LiNbO<SUB>3</SUB> (BNST–100<I>x</I>LN) ceramics at high temperature (near dielectric maximum temperature, <I>T</I> <SUB>m</SUB>). The <I>T</I> <SUB>m</SUB> for the low–temperature sintered sample was shifted to relatively higher temperature by comparison with the high–temperature sintered samples. Furthermore, the degradation of dielectric behavior near <I>T</I> <SUB>m</SUB> in low–temperature sintered BNST–2LN ceramics was revealed after poling treatment and seem to be related to the existence of a high temperature stabilized nonergodic relaxor phase. Accordingly, we assume that the stabilized nonergodic relaxor phase is responsible for the relatively late transition from ferroelectrics to the relaxor. Therefore, we obtained the improved <I>d</I> <SUB>33</SUB> <SUP>*</SUP> of 616 pm/V as the highest value in low–temperature sintered BNST–2LN ceramics.</P>