Ca1-xSrxZrO3陶瓷固溶体的制备、表征及介电性能

LEI Jixia; LIU Xiaolin; DOU Xiaoliang; CHEN Jianfeng

您当前的位置：

首页 >

文章列表页 >

Ca_1-xSr_xZrO₃陶瓷固溶体的制备、表征及介电性能

更新时间：2025-12-10

- Ca_1-xSr_xZrO₃陶瓷固溶体的制备、表征及介电性能
- CIESC Journal Issue 7, (2006)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2006，
  
  Published：25 July 2006
- 稿件说明：
移动端阅览
LEI Jixia, LIU Xiaolin, DOU Xiaoliang, et al. Ca_1-xSr_xZrO₃陶瓷固溶体的制备、表征及介电性能[J]. CIESC Journal, 2006, (7).
DOI：

LEI Jixia, LIU Xiaolin, DOU Xiaoliang, et al. Ca_1-xSr_xZrO₃陶瓷固溶体的制备、表征及介电性能[J]. CIESC Journal, 2006, (7). DOI：

摘要

采用草酸盐共沉淀法，以氯化钙、氯化锶、氧氯化锆和草酸为原料成功地制备了Ca1-xSrxZrO3系列陶瓷固溶体.利用TG-DTA和XRD等手段分析了Ca1-xSrxZrO3前驱体的热分解过程并确定了形成结晶相的温度.结果表明：在1000℃以上煅烧前驱体可获得立方相的Ca1-xSrxZrO3完全固溶体，晶体的晶格常数变化规律符合Vegard定律;将经过1100℃煅烧的Ca0.8Sr0.2ZrO3粉体干压成型并在1450℃烧结后，所得瓷体的相对密度和平均晶粒尺寸分别达到93.0％和0.7 μm;当Sr2+在固溶体中的比例(x)为0.2时，Ca1-xSrxZrO3陶瓷在10 MHz高频下室温介电常数达到最大27.6.

Abstract

Ca1-xSrxZrO3(CSZ) powders were synthesized successfully by the oxalate coprecipitation process.In this study

oxalate acid and a mixture solution of CaCl2

SrCl2 and ZrOCl2 were used as reactants and the product was a precursor of CSZ.TG-DTA curves were employed to characterize the thermal decomposition behavior of the precursor and gave an initial temperature of formation of CSZ crystal.The XRD results revealed also that when heating temperature was up to 1000℃

the powder crystallized was a full solid solution with cubic structure and the relationship of lattice parameter (a) and x agreed with the Vergard’s law.The CSZ powder calcined at 1100℃ was sintered at 1450℃.The SEM micrograph of the sintered ceramics showed that the average grain size was around 0.7 μm

and the relative density of the ceramics was 93.0%.The dielectric constant of the Ca0.8Sr0.2ZrO3 with Sr2+ in solid solution (x) of 0.2 measured at room temperature and under the high frequency of 10 MHz was 27.6.

关键词

Keywords

references

Views

323

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on microwave enhanced removal performance of organic matter in coking waste salt

Performance of alkali metal-loaded SrMnO3 oxygen carriers in chemical looping oxidative dehydrogenation of ethylbenzene

Performance study of gas-liquid vortex separators under low cross-sectional gas velocity

Effect of belt structure design on the vulcanization characteristics of all-steel radial tires

Analysis of flow field characteristics and mixing performance of different SK-type static mixers

Related Author

No data

Related Institution

No data

⁰