TITLE

Effects of Fe, Ti, and V doping on the microstructure and electrical properties of grain and grain boundary of giant dielectric NiO-based ceramics

AUTHOR(S)
Thongbai, Prasit; Pongha, Sarawut; Yamwong, Teerapon; Maensiri, Santi
PUB. DATE
January 2009
SOURCE
Applied Physics Letters;1/12/2009, Vol. 94 Issue 2, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the giant dielectric response and electrical properties of Li0.05B0.02Ni0.93O (B=Fe, Ti, and V) ceramics prepared by a polymer pyrolysis route. The giant dielectric response in these materials can be ascribed based on the Maxwell–Wagner polarization and thermally activated mechanisms. It is found that Fe, Ti, and V doping has a strong effect on the microstructure and the conduction of grains and grain boundaries of these NiO-based ceramic systems, which make large contribution to their dielectric properties.
ACCESSION #
36258422

 

Related Articles

  • Synthesis and characterization of SrCoxTi1-xO3. de Souza, M. A. F.; Souza, A. G.; Candeia, R. A.; Melo, D. M. A.; Soledade, L. E. B.; Santos, M. R. C.; Santos, I. M. G.; Lima, S. J. G.; Longo, E. // Journal of Thermal Analysis & Calorimetry;Feb2005, Vol. 79 Issue 2, p411 

    In the last decade the (Sn1-xTix)O2system had a great interest. Consequently, due to its great potential application as electronic and ceramic, it has been widely investigated. The aim of the present work was to study the...

  • Low temperature sintering and microwave dielectric properties of (ZnMg)TiO ceramics with BiVO. Li, Bo; Tang, Bin; Zhang, Shuren; Jiang, Hongmei // Journal of Materials Science;Dec2010, Vol. 45 Issue 23, p6461 

    The effects of BiVO and CaTiO additives on the microwave dielectric properties of (Zn,Mg)TiO (ZMT) ceramics were investigated. BiVO as a sintering agent could effectively lower the firing temperature of ZMT ceramics below 930 °C. From XRD analysis, the secondary phase formation occurred when...

  • On the validity of a thermal spike mixing model for low-Z metals. Bo\rgesen, P.; Lilienfeld, D. A.; Johnson, H. H.; Alford, T. L.; Wistrom, R. E. // Journal of Applied Physics;8/1/1990, Vol. 68 Issue 3, p1364 

    Presents a study which examined low temperature beam mixing rates for copper-titanium, nickel-titanium and iron-titanium layers using a popular semi-empirical thermal spike model. Equation for the mixing rate for metal bilayers; Methods and materials used; Variance of the distribution at the...

  • Effect of Vanadium on Structural and Electrical Properties of Pb(Fe0.5Nb0.5)O3 Ceramics. Sahoo, Subhadarsani; Choudhary, R. N. P; Mathur, B. K. // AIP Conference Proceedings;10/23/2008, Vol. 1063 Issue 1, p310 

    Pb(Fe0.5Nb0.5)O3 where ferroelectrics and magnetic order coexist exhibits has very high dielectric constant and therefore it is an attractive candidate for multilayer capacitors. In view of the above, we have synthesized Polycrystalline samples of Pb (Fe0.5Nb0.5-xVx)O3, X = 0,0.5,0.1,0.15 by a...

  • Dielectric loss study of oxygen vacancies and domain walls in Sr[sub 2]Bi[sub 4-x/3]Ti[sub 5-x]V[sub x]O[sub 18] ceramics. Wang-ping Lu, F.; Xiang-yu Mao, F.; Xiao-bing Chen // Journal of Applied Physics;2/15/2004, Vol. 95 Issue 4, p1973 

    An investigation on the ferroelectric and dielectric properties of vanadium-doped Sr[sub 2]Bi[sub 4]Ti[sub 5]O[sub 18] ceramics was presented. The ferroelectricity of Sr[sub 2]Bi[sub 4-x/3]Ti[sub 5-x]V[sub x]O[sub 18] samples (x=0, 0.003, 0.0048, 0.018, 0.048, and 0.096) was obviously improved...

  • Effect of Ti, V, Cr, and Mn additions on the magnetic properties of a nanocrystalline soft... Bitoh, T.; Nakazawa, M. // Journal of Applied Physics;4/15/1999 Part 2A of 2, Vol. 85 Issue 8, p5127 

    Presents information on a study which investigated the effect of the addition of titanium, vanadium, chromium and manganese on the magnetic properties of a nanocrystalline soft magnetic iron-zirconium-boron alloy. Experimental procedure; Results and discussion.

  • Dielectric and electric field-induced pyroelectric behavior of (Pb0.87-0.07xBa0.10+0.07x)La0.02(Zr0.7Sn0.15Ti0.15)O3 ceramics. Qingfeng Zhang; Shenglin Jiang; Yike Zeng // Journal of Materials Research;6/14/2011, Vol. 26 Issue 11, p1436 

    (Pb0.87-0.07xBa0.10+0.07x)La0.02(Zr0.7Sn0.15Ti0.15)O3 ceramics with 0 ≤ x ≤ 1 were prepared by conventional solid-state reaction process, and their dielectric and electric field-induced pyroelectric properties were systemically investigated. Compared with conventional pyroelectric...

  • Role of precursor chemistry on synthesis of Si-O-C and Si-O-C-N ceramics by polymer pyrolysis. Rangarajan, S.; Aswath, P. B. // Journal of Materials Science;Apr2011, Vol. 46 Issue 7, p2201 

    In this study, the role played by polymer precursor chemistry on the nature of the pyrolyzed product was examined. Variables examined included extent of conjugation of the precursor, differences between a homopolymer and co-polymer, linear and cyclic structures, siloxanes and silazanes and...

  • Fabrication of porous SiC-based ceramic microchannels via pyrolysis of templated preceramic polymers. Quoc Dat Nghiem; Asthana, Amit; In-Kyung Sung; Dong-Pyo. Kim // Journal of Materials Research;Jun2006, Vol. 21 Issue 6, p26 

    This article reports conversion chemistry of preceramic polymer to ceramic phase during the fabrication of high-temperature stable silicon carbide and silicon carbonitride monolithic porous microchannels. The micromolding in capillariesmethod is used to fabricate porous channels by the initial...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics