Acta Metall Sin  1995, Vol. 31 Issue (17): 195-199    DOI:

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LANTHANUM SENSOR AND ACTIVITY OF LANTHANUM IN CARBON SATURATED IRON

ZOU Kaiyun; WANG Changzhen; (Faculty of Metallurgical Phisical Chemislry; Northeastern Universily. Shenyang 110006) ZHAO Nairen (Northeastern University; Shenyang 110006)

ZOU Kaiyun; WANG Changzhen; (Faculty of Metallurgical Phisical Chemislry; Northeastern Universily. Shenyang 110006) ZHAO Nairen (Northeastern University; Shenyang 110006). LANTHANUM SENSOR AND ACTIVITY OF LANTHANUM IN CARBON SATURATED IRON. Acta Metall Sin, 1995, 31(17): 195-199.

Abstract References Related Articles Recommended Metrics Download:  PDF(371KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Laβ-Al2O3(La2O3·11Al2O3) type solid electrolytes were prepared by direct synthesis method. In the temperature range of 800-1500℃, the complex impedance measurements on Laβ-Al2O3 were carried out. The relationships between conductivities of Lag-Al2O3 and temperature, and the activation energy for conduction were obtained. The results show that the order of magnitude of conductivities is 10-6 to 10-3S·m-3, the value of the activation energy is 2.0 eV.It is believed that the Laβ-Al2O3 is conductor of La3+ by the coulometric titration. Stability of Laβ-Al2O3 is proved by D.T.A.The rare earth La probe was made by using Lap-Al2O3 as solid electrolyte, pure La as reference electrode, Mo wire as electrode wire. It was used to determine the activity of dissolved La in C saturating melten Fe (1450℃) with different La concentration. The results were corresponding to that of oxygen concentration cell EMF determined by oxygen probe.The results show that the order of magnitude of activity of dissolved La is 10-4 to 10-3. After some experiments, the rare earth La probe did not split. Key words:  solid electrolyte      sensor Laβ-Al2O3      activity      lanthanum      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1995/V31/I17/195 1LecarsY,TheryJ,CollonguesR．CRSeancesAcadSci(Paris),1972;247:402BraggWL,GottfriedC,WestJ．JKrisiallogr,1931;77:2253YungFang,YuYao,KummerJT．JInorRNuclChem．1967;29:24534KummerJT．ProgSolidStateChem,1972;7:1415FarringtonGC,BrjantJL．MalerResBull,1978;13:7636DunnB,FarringtonGC．MaterResBull,1980;15:17737FarringtonGC,DunnB,ThomasJO．ApplPhys,1983;32A:1598FritscheEdwardT,TensmeyerLowellG．JAmCeramSoc,1976;50:1679BondarIA,VinogradovaNA．IzvAkad．NaukUzSSSR,SetKkimNauk,1964;(5):78510徐秀光,王常珍,李光强,于化龙等．第六届日本中国铁钢学术会议报告,日本千叶,1922:26-3111MazandarangFN,RehlkeRD．JElectrochemSoc,1974;121:13512JeanninY,MannerskantzC．RichardsonFD,TransMetallSocAIME．1963;227:30013JacobKJ．JElectrochemSoc,1977;124:1827 [1] JU Tianhua, SHU Nian, HE Wei, DING Xueyong. A Predicted Model for Activity Interaction Coefficient Between Solutes in Alloy Solutions[J]. 金属学报, 2023, 59(11): 1533-1540. [2] GAO Yunming, HE Lin, QIN Qingwei, LI Guangqiang. ZrO2 Solid Electrolyte Aided Investigation on Electrodeposition in Na3AlF6-SiO2 Melt[J]. 金属学报, 2022, 58(10): 1292-1304. [3] Ying LI,Chao SUN,Jun GONG. Performance Research of Magnesium Base Lanthanum Hexaaluminate Prepared by Co-Precipitation[J]. 金属学报, 2019, 55(5): 657-663. [4] Rongyao MA, Lin ZHAO, Changgang WANG, Xin MU, Xin WEI, Junhua DONG, Wei KE. Influence of Hydrostatic Pressure on the Thermodynamics and Kinetics of Metal Corrosion[J]. 金属学报, 2019, 55(2): 281-290. [5] Xiaofeng LU, Ming XIAO, Yangmei CHEN, Bangcheng YANG. Bioactivity of Titanium Metal Hybridized with Inactivated Bacterial Biofilm[J]. 金属学报, 2017, 53(10): 1402-1412. [6] Muqin LI, Haitao YAO, Fanghong WEI, Mingda LIU, Zan WANG, Shuhao PENG. The Microstructure and in Vivo and in Vitro Property of Multi-Component Composite Films on the Biomedical Pure Magnesium Surface[J]. 金属学报, 2017, 53(10): 1337-1346. [7] Xiaoyan CHEN,Zhe JIN,Xuefeng BAI,Yizhou ZHOU,Tao JIN,Xiaofeng SUN. EFFECT OF C ON THE INTERFACIAL REACTION AND WETTABILITY BETWEEN A Ni-BASED SUPERALLOY AND CERAMIC MOULD[J]. 金属学报, 2015, 51(7): 853-858. [8] Dongsong RONG,Yong JIANG,Jianming GONG. EXPERIMENTAL RESEARCH AND THERMODYNAMIC SIMULATION OF LOW TEMPERATURE COLOSSAL CARBURIZATION OF AUSTENITIC STAINLESS STEEL[J]. 金属学报, 2015, 51(12): 1516-1522. [9] GAO Yunming SONG Jianxin ZHANG Yeqin GUO Xingmin. MEASUREMENT OF THE DIFFUSIVITY OF OXYGEN IN HIGH-TEMPERATURE LIQUID SILVER BY ELECTROCHEMICAL METHOD[J]. 金属学报, 2010, 46(3): 277-281. [10] WU Ling. The improvement of regular solution model based on GA-NN and its application in binary slag system[J]. 金属学报, 2008, 44(7): 799-802 . [11] Yuan Liu. Improvement of Calculation Method for the Activity Coefficient of Multi-component Alloys[J]. 金属学报, 2007, 43(5): 503-508 . [12] LE Qichi; CUI Jianzhong. Thermodynamics Properties of Ternary Bath of Coloring Hot--Dip Galvanization[J]. 金属学报, 2006, 42(11): 1182-1186 . [13] YU Jingkun; LIU Tao; CHEN Min. EXPERIMENTAL RESEARCH ON SULPHUR CONCENTRATION CELL WITH MgS+1.5%ZrS2 SOLID ELECTROLYTE[J]. 金属学报, 2005, 41(12): 1285-1288 . [14] LI Fushen; JIN Congjin; LU Xionggang; ZHOU Guozhi; ZHU Lixin; HU Xiaojun; LI Zeya; WANG Feng; SHEN Qiang. OXYGEN RERISING PHENOMENON DURING DEOXIDATION WITH SOLID ELECTROLYTE DEOXIDATION UNITS IN STEEL MELTS[J]. 金属学报, 2004, 40(7): 673-676 . [15] ZHANG Xiaoqiang; XU Jian. Formation of W Particles /La55Al25Cu10Ni5Co5 Glassy Alloy Matrix Composites By Mechanical Milling[J]. 金属学报, 2004, 40(6): 647-. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed