|
|
|
| Effect of Sm3+ Doping on the Properties of Thermoceramics SmxNiCo0.2Mn1.8O4 |
| GUO Na LI Yadong |
| College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 |
|
Cite this article:
GUO Na LI Yadong. Effect of Sm3+ Doping on the Properties of Thermoceramics SmxNiCo0.2Mn1.8O4. Chin J Mater Res, 2011, 25(2): 209-213.
|
|
|
Abstract The NTC thermoceramics of SmxNiCo0.2Mn1.8O4(0≤ x ≤0.05)were prepared by the solid reaction technique and characterized by XRD and XPS. The influence of Sm3+ doping on the electrical properties of SmxNiCo0.2Mn1.8O4 spinel phases was investigated. The results show that when Sm3+ doped content was low(x ≤0.02), Sm3+ ions partially substituted Mn3+ions in the octahedral sites of the SmxNiCo0.2Mn1.8O4 spinel phases. It is beneficial to obtain high thermal stability of the spinel phases. While Sm3+ doped content was higher than 0.03, SmMnO3 and SmMn2O5 two impurity phases precipitated one after one and the thermal stability of thermoceramics decreased significantly.
|
|
Received: 19 November 2010
|
|
|
| 1 M.Vakiv, O.Shpotyuk, O.Mrooz, I.Hadzaman, Controlled thermistor effect in the system CuxNi1−x−yCo2yMn2−yO4, Journal of the European Ceramic Society, 21, 1783–1785(2001)2 E.G.Larson, R.J.Arnott, D.G.Wikham, Preparation, semiconduction and low-temperature magnetization of the system Ni1−xMn12+xO4, Journal of Physics and Chemistry of Solids, 23, 1771–1781(1962)3 A.Navrotsky, O.J.Kleppa, The thermodynamics of cation distributions in simple spinels, Journal of Inorganic & Nuclear Chemistry, 29, 2701–2714(1967)4 K.Park, I.H.Han, Effect of Cr2O3 addition on the microstructure and electrical properties of Mn–Ni–Co oxides NTC thermistors, Journal of Electroceramics, 17, 1069–1073(2006)5 M.Hosseini, The effect of cation composition on the electrical properties and aging of Mn–Co–Ni thermistors, Ceramics International, 26, 245–249(2000)6 K.Park, J.K.Lee, J.G.Kim, S.Nahm, Improvement in the electrical stability of Mn–Ni–Co–O NTC thermistors by substituting Cr2O3 for Co3O4, Journal of Alloys and Compounds, 437, 211–214(2007)7 K.Park, J.K.Lee, S.-J.Kim, W.-S.Seo, W.-S.Cho, C.-W.Lee, S.Nahm, The effect of Zn on the microstructure and electrical properties of Mn1.17−xNi0.93Co0.9ZnxO4 (0≤ x ≤0.075) NTC thermistors, Journal of Alloys and Compounds, 467, 310–316(2009)8 K.Park, S.J.Kim, J.-G.Kim, S.Nahm, Structural and electrical properties of MgO–dopedMn1.4Ni1.2Co0.4−xMgxO4 (0≤ x ≤0.25) NTC thermistors, Journal of the European Ceramic Society,27, 2009–2016(2007)9 K.park, D.Y.Bang, Electical properties of NiMnCoFe oxide thick-film NTC thermistors prepared by screen printing, Journal of Materials Science-Materials in Electronics, 14, 81–87(2003)10 V.L.Joseph Joly, P.A.Joy, S.K.Date, Effect of R on the magnetic transition temperature of RMn0.5Co0.5O3, Solid State Communications, 121, 219–222(2002)11 V.L.Joseph Joly, S.D.Bhame, P.A.Joy, S.K.Date, Magnetic properties of La2MnCo1−xFexO6, Journal of Magnetism and Magnetic Materials, 261, 433–441(2003)12 Yanwen Tian, Xiaoxue Kang, Liying Liu, Chaqing Xu, Tao Qu, Research on cathode material of Li-ion battery by yttrium doping, Journal of Rare Earths, 26, 279–283(2008)13 G.H.Zheng, Z.X.Dai, Y.Y.Zhang, Y.P.Sun, The influence of Sm doping in the electron-doped manganites La0.9Te0.1MnO3, Journal of Alloys and Compounds, 489, 348–352(2010)14 Zhang Na, TANG Zhiyuan, Huang Qing-hua, Lu Xinghe, Synthesis and characterization of multidoped lithium manganese oxide spinel LiCo0.02La0.01Mn1.97O3.98Cl0.02,Transactions of Nonferrous Metals Society of China, 16, 286–289(2006)15 Yi Tingfeng, Zhu Yanrong, Hu Xinguo, Structure and electrochemical properties of LiLaxMn2−xO4 cathode material by the ultrasonic-assisted sol-gel method. International,Journal of Minerals Metallurgy and Materials, 16, 119–123(2009)16 E.Elbadraoui, J.L.Baudour, F.Bouree, B.Gillot, S.Fritsch, A.Rousset, Cation distribution and mechanism of electrical conduction in nickel–copper manganite spinels, Solid State Ionics, 93, 219–225(1997)17 S.Fritscha, J.Sarrias, M.Brieu, J.J.Couderc, J.L.Baudour, E.Snoeck, and A.Rousset, Correlation between the structure, the microstructure and the electrical properties of nickel manganite negative temperature coefficient (NTC) thermistors, Solid State Ionics, 109, 229–237(1998) 18 D.Kukuruznyak, J.Moyer, N.Nguyen, E.Stern, F.Ohuchi, Relationship between electronic and crystal structure in Cu–Ni–Co–Mn–O spinels Part A: Temperature-induced structural transformation, Journal of Electron Spectroscopy and Related Phenomena, 150, 275(2006)19 B.Gillot, R.Legros, R.Metz, A.Rousset, Electrical conductivity of copper and nickel manganites in relation with the simultaneous presence of Mn3+ and Mn4+ ions on octahedral sites of the spinel structure, Solid State Ionics, 51, 7–9(1992) 20 D.R.Lide, ed. CRC Handbook of Chemistry and Physics. 80thed. London: CRC Press. 1999. 21 D.L.Fang, C.H.Zheng, C.S.Chen, Aging of nickel manganite NTC ceramics, Journal of Electroceramics, 22, 421(2009)22 M.M.Vakiv, O.I.Shpotyuka, V.O.Balitska, Ageing behavior of electrical resistance in manganite NTC ceramics, Journal of the European Ceramic Society, 24, 1243–1246(2004)23 D.L.Fang, Z.B.Wang, P.H.Yang, W.Liu, C.S.Chen, Preparation of ultra-fine nickel manganite powders and ceramics by a solid-state coordination reaction, Journal of the American Ceramic Society, 89, 230–235(2006) |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
