کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1530707 | 995810 | 2009 | 5 صفحه PDF | دانلود رایگان |
Both low- and high-temperature units were prepared by columbite precursor method, and Pb(Mg1/3Nb2/3)O3(PMN)-based ferroelectric composite ceramics were prepared by conventional method, baking-block method and coating method, respectively. The effects of preparation methods on dielectric and electrostriction properties as well as the temperature-dependence property of the obtained composite ceramics were studied. The results show that compared with the samples prepared by traditional blend sintering method, of the samples prepared by baking-block and coating methods have much better dielectric and electrostriction properties. For those prepared by baking-block method, the electrostriction temperature-dependence properties are good in the range of 20–60 °C. For those prepared by coating method, the dielectric temperature-dependence properties are also good in the broad range of −30 to 70 °C, and the electrostriction temperature properties are better than those prepared by blending-block. Compared with the traditional blending sintering method, the dielectric and electrostriction temperature-dependence properties are much better, which effectively solves the problem of temperature properties existing in present engineering applications.
Journal: Materials Science and Engineering: B - Volume 162, Issue 1, 15 May 2009, Pages 9–13