Results 281 to 290 of about 324,033 (358)

MECHANICAL PROPERTIES OF FERROELECTRIC CERAMIC NANOCOMPOSITES

International Journal of Nanoscience, 2005
The micro- and nano-indentation techniques and compression tests were employed to determine the mechanical properties of PZT based composites dispersed with Al 2 O 3 nano-particles for comparison. Compared with the reduced modulus, the nano-hardness, which exhibited indentation size effect (ISE), seemed to be more sensitive to the indentation depth ...
Wang, XX, Kwok, KW, Lee, KL, Kah Soh, AK
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Piezoelectric properties of a ferroelectric ceramic

Strength of Materials, 1984
1. The laser interferometer that was developed has a resolving power of 30 A and ensures an error no greater than 0.05% for the measurement of quasistatic strains, which makes it possible to use the interferometer to study the physicomechanical properties of lowductility ceramics. 2.
G. G. Pisarenko, V. K. Khaustov, V. N. Nishchenets, V. A. Kuz'menko   +3 more
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Greatly enhanced discharge energy density and efficiency of novel relaxation ferroelectric BNT–BKT-based ceramics

, 2020
The development of lead-free bulk ceramics with high recoverable energy density (Wrec) and high efficiency plays a major role in meeting the requirements for miniaturization and integration of advanced pulsed power capacitors.
Di Hu, Z. Pan, Xiang Zhang, Haoran Ye, Zhouyang He, Mingkun Wang, S. Xing, J. Zhai, Q. Fu, Jinjun Liu   +9 more
semanticscholar   +1 more source

A review on the development of lead-free ferroelectric energy-storage ceramics and multilayer capacitors

, 2020
Energy storage materials and their applications have attracted attention among both academic and industrial communities. Over the past few decades, extensive efforts have been put on the development of lead-free high-performance dielectric capacitors. In
Haibo Zhang, Tian-zi Wei, Qi Zhang, Weigang Ma, Pengyuan Fan, D. Salamon, Shantao Zhang, B. Nan, Hua Tan, Z. Ye   +9 more
semanticscholar   +1 more source

Ferroelectric zirconate ceramics

1949 Conference on Electrical Insulation, 1949
A new class of ferroelectric ceramics was revealed in a study of mixtures of lead zirconate and up to 40 mol percent barium zirconate. These compositions were prepared from pure zirconium oxide, lead monoxide and barium carbonate mixed in the desired stoichiometric proportions and calcined in covered platinum crucibles at 1050°C.
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Excellent Energy Storage Properties Achieved in BaTiO3-based Lead-Free Relaxor Ferroelectric Ceramics via Domain Engineering on the Nanoscale.

ACS Applied Materials and Interfaces, 2019
Barium titanate-based energy storage dielectric ceramics have caused more and more concern due to their environmental friendliness and outstanding ferroelectric properties.
Ying Lin, Da Li, Miao Zhang, S. Zhan, Yaodong Yang, Haibo Yang, Q. Yuan   +6 more
semanticscholar   +1 more source

Thermal stresses in ferroelectric ceramics

Ferroelectrics, 1998
The conception of special thermal stresses in ferroelectrics ceramics based on the existence of conglomerates of grains is presented.
Yu. V. Dashko, S. O. Kramarov
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Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi0.5Na0.5TiO3–SrTiO3 ceramics

Journal of Materials Chemistry C, 2020
The dielectric, piezoelectric and ferroelectric properties of (1 − x)(Bi0.5Na0.5)TiO3–xSrTiO3 ceramics are systematically studied to investigate their relaxor ferroelectric behaviours driven by thermal and compositional changes.
Hongying He, Xin Lu, Minchan Li, Yumei Wang, Zhenrong Li, Zhou-guang Lu, L. Lu   +6 more
semanticscholar   +1 more source

Printing with ferroelectric ceramics

Ferroelectrics, 1997
Abstract For printing applications, ferroelectric (FE) material can be poled without electrodes by charging the surface at the image areas in one polarity and the background to the opposite polarity. On the surface of FE-ceramics, high electric fields are produced which are able to attract or repel charged toner particles. This property can be used for
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Thermodynamic Theory of Ferroelectric Ceramics

Physical Review, 1957
A review of theories of ferroelectricity and of experimental data on ferroelectric ceramics leads to the conclusion that an analytic theory of such ceramics on microscopic basis does not seem feasible. A thermodynamic continuum theory is developed here, which is based on the postulated isomorphism, relevant to small signals only, between a polarized ...
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