| 不同烧结温度对PMN基铁电陶瓷B位有序度的影响 |
| Effect of Sintering Temperature on B-Site Order of Pb(Mg1/3Nb2/3)O3-Based Ferroelectric Ceramics |
| 作者 | 单位 | E-mail | | 杨超 | State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | | 刘敬松 | State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | liujingsong@swust.edu.cn | | 张敏芳 | State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | | | 游美容 | State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China | |
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| 摘要: 本文研究了不同烧结温度下,CuO添加对0.94PMN-0.06PT(PMN-6PT)弛豫铁电陶瓷B位化学有序度的影响。拉曼和XRD分析结果表明,不同的烧结温度下,离子取代不同,对B位有序度的影响不同。烧结温度在950℃时,主要是Cu2+进入晶格,不影响B位化学有序度;烧结温度在1080℃时,主要是Cu1+进入晶格,B位化学有序度改变。介温测试所表现出来的弛豫特性与拉曼分析有序度的结果相一致。 |
| 关键词: 烧结温度 弥散度 有序度 拉曼分析 |
| 基金项目: 四川省教育厅青年基金(No.09ZB095)资助项目 |
| Abstract: The effect of CuOdoping on B-site order of 0.94Pb(Mg1/3Nb2/3)O3-0.06PbTiO3 (abbreviated as PMN-6PT) ceramics with different sintering temperatures was studied. The Raman and XRDresults revealed that under different sintering temperature, ion substitution was different, which had different influence to B-site order. Sintering temperature at 950 ℃, Cu2+ ions entered the crystal lattice and made no difference in the B-site order. However, Sintering temperature at 1080 ℃, Cu1+ ions entered the crystal lattice and had an effect in the B-site order. The dependence of dielectric constant on temperature illustrated an obvious relaxor characteristic for CuOdoped PMN-based ceramics, which was in accord with Raman spectra analysis. |
| Keywords: sintering temperature diffuseness parameter B-site order Raman spectra |
| 投稿时间：2013-03-19 修订日期：2013-05-16 |
| 摘要点击次数: 1888 |
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| 杨超,刘敬松,张敏芳,游美容.不同烧结温度对PMN基铁电陶瓷B位有序度的影响[J].无机化学学报,2013,29(10):2145-2149. |
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