Mn-stabilized zirconia ceramics: Phase transformation and mixed ionic-electronic conductivity
Mn-stabilized zirconia ceramics: Phase transformation and mixed ionic-electronic conductivity
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锰稳定氧化锆陶瓷：相变和混合离子电子电导率
DOI：
10.1016/j.ceramint.2018.07.169
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发表时间：
2018-11
影响因子：
5.2
通讯作者：
Zhao Yuhou
中科院分区：
文献类型：
--
作者：
Gao Ling;Xie Meijiao;Jin Lihua;Wang Yao;Jin Changqing;Zhao Yuhou
采用共沉淀法，在1400℃的Ar气氛中烧结，制备了立方相锰稳定氧化锆(Zr1−xMnxO2−δ)。在固溶度范围内，得到了取代固溶体，不存在其他第二相。二价锰离子在晶体生长、致密化和相稳定机制中起着重要作用。用交流阻抗法和四探针法测量了样品的晶内电导率、晶间电导率和总电导率。随着温度的升高和锰含量的增加，锰稳定的氧化锆陶瓷的电导率增加。立方结构的Zr0.8Mn0.2O2−δ陶瓷在600℃和1000℃时的电导率最高，分别为0.2和4.15 S/m。激活能随Mn含量的增加而减小，这很可能是由于晶间电子导电性所致。单立方结构、高电学性能和低活化能使该体系具有作为电极或电解液材料的潜在用途。
Cubic-phased Mn-stabilized zirconia (Zr 1− x Mn x O 2− δ) was fabricated by a co-precipitation calcination method and sintering at 1400° C in Ar. Within the solid solubility of Mn in the ZrO 2 matrix, substitution solid solutions were gained without any other second phase. Bivalency Mn ions play an important part in the grain growth, densification, and phase stabilization mechanism. The intragrain, intergrain, and total conductivities were measured by AC impedance and four-probe DC methods. Electrical conductivity of Mn-stabilized ZrO 2 ceramics increased with both increasing temperature and Mn concentration. Zr 0.8 Mn 0.2 O 2− δ ceramic with the cubic structure possessed the highest conductivity of 0.2 and 4.15 S/m at 600° C and 1000° C, respectively. The activation energy decreased with increasing the Mn concentration, which was most likely due to the intergrain electronic conductivity. The single-cubic-phased structure, high electrical properties and low activation energy render this system potentially useful as electrode or electrolyte materials.
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影响因子：
3
作者：
Zhenwei Wang;Mojie Cheng;Zhonghe Bi;Yonglai Dong;Huamin Zhang;Jing Zhang;Zhaochi Feng;Can Li
通讯作者：
Zhenwei Wang;Mojie Cheng;Zhonghe Bi;Yonglai Dong;Huamin Zhang;Jing Zhang;Zhaochi Feng;Can Li
DOI：
10.1016/j.mseb.2006.10.005
发表时间：
2007-02
影响因子：
3.6
作者：
C. Zhang;Chang-jiu Li;G. Zhang;X. Ning;Cheng-Xin Li;H. Liao;C. Coddet
通讯作者：
C. Zhang;Chang-jiu Li;G. Zhang;X. Ning;Cheng-Xin Li;H. Liao;C. Coddet
影响因子：
5.2
作者：
Pradnyesh Satardekar;D. Montinaro;V. Sglavo
通讯作者：
Pradnyesh Satardekar;D. Montinaro;V. Sglavo
影响因子：
3.2
作者：
D. Pomykalska;M. Bućko;M. Rȩkas
通讯作者：
D. Pomykalska;M. Bućko;M. Rȩkas
影响因子：
3.2
作者：
N. H. Hong;C. Park;A. T. Raghavender;O. Ciftja;N. Bingham;M. Phan;H. Srikanth
通讯作者：
N. H. Hong;C. Park;A. T. Raghavender;O. Ciftja;N. Bingham;M. Phan;H. Srikanth