采用室温同相法和烧结工艺制备SmxNiCo0.2Mn1.8O4(0≤x≤0.05)负温度系数热敏陶瓷,用XRD和XPS等手段对其进行表征,研究了Sm3+掺杂对其电性能的影响.结果表明,当sm3+掺杂量较低时(x≤0.02),可以制备出单一的尖晶石相,Sm3+取代尖晶石相八面体间隙中Mn3+有利于获得高热稳定性的尖晶石相;当Sm3+掺杂量x≥0.03时,相继出现SmMnO3和SmMn2O5两杂相,导致SmxNiCo0.2Mn1.8O4热敏陶瓷的热稳定性明显降低.
参考文献
| [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 microstrncture and electrical properties of Mn-Ni-Co oxides NTC thermistors,Journal of Electroceramies,17,1069-1075(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 Mnl.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,14,8l-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 Lin,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 LiCo0.02La0.01Mn1.97O3.98 Cl0.02,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.Kukurnznyak,J.Moyer,N.Ngnyen,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.80th ed.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) |
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