Temperature stability and electrical properties in La‐doped KNN ‐based ceramics

2018 ◽  
Vol 101 (9) ◽  
pp. 4084-4094 ◽  
Author(s):  
Xiang Lv ◽  
Jiagang Wu ◽  
Jianguo Zhu ◽  
Dingquan Xiao ◽  
Xi‐xiang Zhang
Keyword(s):  
Electrical Properties ◽  
Temperature Stability ◽  
La Doped

Influence of deposition conditions of La-doped YbBa2Cu3Oy upper layers on electrical properties of interface-modified ramp-edge junction

2002 ◽  
Vol 378-381 ◽  
pp. 1353-1356 ◽  
Author(s):  
H Wakana ◽  
S Adachi ◽  
M Horibe ◽  
Y Ishimaru ◽  
O Horibe ◽  
...  
Keyword(s):  
Electrical Properties ◽  
La Doped ◽  
Deposition Conditions

Investigation of electrical properties in La-doped BiFeO3–PbTiO3 thin films prepared by sol–gel method

2015 ◽  
Vol 76 (1) ◽  
pp. 220-226 ◽  
Author(s):  
Dongfang Chen ◽  
Shengli Huang ◽  
Jianguo Chen ◽  
Jinrong Cheng
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
La Doped

scholarly journals Temperature Dependence of Mechanical, Electrical Properties and Crystal Structure of Polyethylene Blends for Cable Insulation

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1922 ◽  
Author(s):  
Lunzhi Li ◽  
Lisheng Zhong ◽  
Kai Zhang ◽  
Jinghui Gao ◽  
Man Xu
Keyword(s):  
High Temperature ◽  
Electrical Properties ◽  
Temperature Dependence ◽  
Elevated Temperatures ◽  
Breakdown Strength ◽  
Temperature Stability ◽  
Xrd Analysis ◽  
Insulation Material ◽  
Cable Insulation ◽  
Polyethylene Blends

There is a long-standing puzzle concerning whether polyethylene blends are a suitable substitution for cable-insulation-used crosslinking polyethylene (XLPE) especially at elevated temperatures. In this paper, we investigate temperature dependence of mechanical, electrical properties of blends with 70 wt % linear low density polyethylene (LLDPE) and 30 wt % high density polyethylene (HDPE) (abbreviated as 70 L-30 H). Our results show that the dielectric loss of 70 L-30 H is about an order of magnitude lower than XLPE, and the AC breakdown strength is 22% higher than XLPE at 90 °C. Moreover, the dynamic mechanical thermal analysis (DMA) measurement and hot set tests suggest that the blends shows optimal mechanical properties especially at high temperature with considerable temperature stability. Further scanning electron microscope (SEM) observation and X-ray diffraction (XRD) analysis uncover the reason for the excellent high temperature performance and temperature stability, which can be ascribed to the uniform fine-spherulite structure in 70 L-30 H blends with high crystallinity sustaining at high temperature. Therefore, our findings may enable the potential application of the blends as cable insulation material with higher thermal-endurance ability.

Electrical properties and temperature stability of a new kind of lead-free piezoelectric ceramics

2008 ◽  
Vol 41 (24) ◽  
pp. 245401 ◽  
Author(s):  
Yuanyu Wang ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Bin Zhang ◽  
Wenjuan Wu ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Temperature Stability ◽  
Piezoelectric Ceramics ◽  
Lead Free

THE STUDY OF HIGH DIELECTRIC CONSTANT MECHANISM OF La-DOPED Ba0.67Sr0.33TiO3 CERAMICS

2018 ◽  
Vol 25 (02) ◽  
pp. 1850056
Author(s):  
JING XU ◽  
BO HE ◽  
HAN XING LIU
Keyword(s):  
Dielectric Constant ◽  
Rare Earth ◽  
High Dielectric Constant ◽  
Temperature Stability ◽  
Current Voltage ◽  
Microstructure Model ◽  
Bst Ceramics ◽  
High Dielectric ◽  
Rare Earth La ◽  
La Doped

It is a common and effective method to enhance the dielectric properties of BST ceramics by adding rare-earth elements. In this paper, it is important to analyze the cause of the high dielectric constant behavior of La-doped BST ceramics. The results show that proper rare earth La dopant ([Formula: see text]) may greatly increase the dielectric constant of BST ceramics, and also improve the temperature stability, evidently. According to the current–voltage ([Formula: see text]–[Formula: see text]) characteristics, the proper La-doped BST ceramics may reach the better semiconductivity, with the decrease and increase in La doping, the ceramics are insulators. By using the Schottky barrier model and electric microstructure model to find the surface or grain boundary potential barrier height, the width of the depletion layer and grain size do play an important role in impacting the dielectric constant.

scholarly journals Crystalline and Electronic Structures and Magnetic and Electrical Properties of La-Doped Ca2Fe2O5 Compounds

2017 ◽  
Vol 47 (1) ◽  
pp. 188-195 ◽  
Author(s):  
T. L. Phan ◽  
P. T. Tho ◽  
N. Tran ◽  
D. H. Kim ◽  
B. W. Lee ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Electronic Structures ◽  
La Doped ◽  
Magnetic And Electrical Properties

Structure and electrical properties of (0.965 − x)(K0.48Na0.52)NbO3–xBiGaO3–0.035(Bi0.5Na0.5)ZrO3 piezoelectric ceramics

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57210-57216 ◽  
Author(s):  
Jie Xing ◽  
Zhi Tan ◽  
Jing Yuan ◽  
Laiming Jiang ◽  
Qiang Chen ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Piezoelectric Properties ◽  
Temperature Stability ◽  
Piezoelectric Ceramics ◽  
Lead Free

(0.965 − x)(K0.48Na0.52)NbO3–xBiGaO3–0.035(Bi0.5Na0.5)ZrO3 [(0.965 − x)KNN–xBG–BNZ] lead-free piezoelectric ceramics were prepared using normal sintering for improving the piezoelectric properties and temperature stability of KNN-based ceramics.

Microstructure, electrical properties and temperature stability in Bi0.5Na0.5Zr0.95Ce0.05O3 modified R–T phase boundary of potassium-sodium niobium lead-free ceramics

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 6983-6989 ◽  
Author(s):  
Zhi Tan ◽  
Jie Xing ◽  
Laiming Jiang ◽  
Lingguang Sun ◽  
Jiagang Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Electrical Properties ◽  
Phase Boundary ◽  
Temperature Stability ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
Solid State Sintering ◽  
T Phase ◽  
Sintering Method ◽  
Doping Ratio

(1 − x)K0.48Na0.52Nb0.95Sb0.05O3–xBi0.5Na0.5Zr0.95Ce0.05O3 [(1 − x)KNNS–xBNZC] lead-free piezoelectric ceramics, with doping ratio of x ranging from 0 to 0.05, were synthesized by the conventional solid state sintering method.

Sign in / Sign up

Export Citation Format

Share Document