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,the Curie temperature of Mn 3 ZnC is lowered from 380 to 375 K for Mn 3 Zn 0.95 Sn 0.05 C and to 305 K for Mn 3 Zn 0.75 Sn 0.25 C.In accordance with the second-order ferromagneticparamagnetic transition... change from 0 to 5 T is 2.42 J.kg 1.K 1 at 386 K for Mn 3 Zn 0.95 Sn 0.05 C and 1.70 J.kg 1.K 1 at 308 K for Mn 3 Zn 0.75 Sn 0.25 C.Meanwhile,substitution of Cr for Mn lowers the temperature......
Studies on Standard Formation Enthalpies of Rare Earth Compounds by Using Structural Parameters YANG Feng1,FENG Lin2 (1.Wuhan Institute of Science and Technology, Wuhan 430073, China;2.School... P=Σni=1Pi are defined. The standard formation enthalpies (ΔfHφm) of 74 species of rare earth compounds were studied with P, and the correlation coefficient is R>0.94. The structural factors......
-plated layer; intermetallic compounds; Received: 1999-06-07 电子工业的发展推动了微钎焊技术的不断进步, 在一些先进的封装形式中, 如倒装焊 (flip-chip connection) 和球阵列封装 (all-gird-array package) , 微焊点同时充当电连接和机械连接的通道, 焊点的...) , (c) , (d) 分别为焊点Sn-Ag/Ni (3 μm) /Cu的界面组织及元素Cu, Ni, Sn的面分布. 图5 (a′) , (b′) , (c′) , (d′) 则显示了Sn-Ag/Ni-P (1 图2 Sn-Ag/Ni-P (1 μm) /Cu中界面金相形貌 Fig.2 Optical micrograph showingcross-section view......
Synthesis,characterization and cell imaging properties of rare earth compounds based on hydroxamate ligandLinyan Yang1,2,Yanping Zhang3,Liwei Hu1,Yunhe Zong1,Ruili Zhao1,Tianming Jin1,Wen Gu3,41...="ChDivSummary" name="ChDivSummary">Six binuclear rare earth compounds were synthesized through the ligand of 4-Bromo-N-hydroxy-Nmethyl-benzamide(sH2 bha). Compounds 1-3 are isomorphous, and compound 1......
Effects of calcium compounds on the carbothermic reduction of vanadium titanomagnetite concentrateXiao-hui Li,Jue Kou,Ti-chang Sun,Shi-chao Wu,Yong-qiang ZhaoSchool of Civil and Resource Engineering, University of Science and Technology Beijing摘 要:Effects of calcium compounds on the carbothermic reduction of vanadium titanomagnetite concentrate(VTC......
Synthesis,characterization and cell imaging properties of rare earth compounds based on hydroxamate ligandLinyan Yang1,2,Yanping Zhang3,Liwei Hu1,Yunhe Zong1,Ruili Zhao1,Tianming Jin1,Wen Gu3,41...="ChDivSummary" name="ChDivSummary">Six binuclear rare earth compounds were synthesized through the ligand of 4-Bromo-N-hydroxy-Nmethyl-benzamide(sH2 bha). Compounds 1-3 are isomorphous, and compound 1......
earth compounds in these alloys are all spherical and distribute at interfaces betweenthe Co-cement phase and WC hard phase or(TiW)C solid solution,and in the(TiW)C solid solution.In theYG8R and YTI4R...Rare Earth Compounds in Cemented Carbides with Trace Rare Earth Additions王瑞坤,尤力平,王晓华,刘安生,贺从训,林晨光,石云华,汪有明摘 要:<正> The morphology,structure......
Balanced solubility product and enthalpies of formation of Nb compounds in 0.09 % oriented silicon steelHui Li1,Yun-Li Feng2,Dan Zhang2,Meng Song2,Da-Qiang Cang11. School of Metallurgical... and enthalpy of formation for NbC0.75 , NbC0.85 , NbC0.88 , NbC and NbN in oriented silicon steels were calculated and compared qualitatively. Meanwhile, the mixing enthalpies of these five Nb compounds......
Phase formation with NaZn13 structure in metamagnetic La(Fe1–xCox)11.9Si1.1 compounds张虎,鲍博,史普辑,傅斌,龙毅,常永勤,万发荣摘 要:The effects of different annealing conditions on the phase formation with NaZn13 structure were investigated in La(Fe1–xCox)11.9Si1.1 (x=0.068) compounds. It was found that the 1:13 phase was not formed directly from the melt upon cooling......
Thermodynamic factor in diffusion in the non-stoichiometric compounds Ni3Ga and Pt3InYUAN Wenxia, WUXiaohong QIAO Zhiyu Olga Semenova. and Herbert Ipser Applied Science School, University of Science...;The thermodynamic factor in diffusion in the Ll2-type non-stoichiometric intermetallic compounds Ni3Ga and Pt3In was derived from the experimentally measured activities of Ga and In, respectively......