The Ce-Ni-Si system as a representative of the rare earth-Ni-Si family: Isothermal section and new rare-earth nickel silicides

被引：18
作者：
Morozkin, A. V. [1 ]
Knotko, A. V. [1 ,2 ]
Garshev, A. V. [1 ,2 ]
Yapaskurt, V. O. [3 ]
Nirmala, R. [4 ]
Quezado, S. [5 ]
Malik, S. K. [5 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Chem, House 1,Bldg 3,GSP 1, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Fac Mat Sci, House 1,Bldg 73,GSP 1, Moscow 119991, Russia
[3] Moscow MV Lomonosov State Univ, Geol Fac, Dept Petr, Moscow 119991, Russia
[4] Indian Inst Technol Madras, Chennai 600036, Tamil Nadu, India
[5] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59082970 Natal, RN, Brazil
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2016年 / 243卷
关键词：
Ce-Ni-Si phase diagram; Cerium-nickel-silicides; Rare-earth compounds; Crystal structure; Magnetic properties; CRYSTAL-STRUCTURE; MAGNETIC-PROPERTIES; MIXED-VALENCE; COMPOUNDS R; GD; LA; CE2NI3SI5; STATE; TB; GE;
D O I：
10.1016/j.jssc.2016.09.001
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The Ce-Ni-Si system has been investigated at 870/1070 K by X-ray and microprobe analyses. The existence of the known compounds, i.e.: Ce2Ni15.8Si1.2 (Th2Ni17-type), Ce2Ni15-14Si2-3 (Th2Zn17-type), CeNi(8.6)Si(2.)4 (BaCd11-type), CeNi8.8Si4.2 (LaCo9Si4-type), CeNi6Si6 (CeNi6Si6-type), CeNi5Si1-0.3 (TbCu7-type), CeNi4Si (YNi4Si-type), CeNi2Si2 (CeGa2Al2-type), Ce2Ni3Si5 (U2Co3Si5-type), Ce3Ni6Si2 (Ce3Ni6Si2-type), Ce3Ni4Si4 (U3Ni4Si4-type), CeNiSi2 (CeNiSi2-type), similar to CeNi1.3Si0.7 (unknown type structure), Ce6Ni7Si4 (Pr6Ni7Si4-type), CeNiSi (LaPtSi-type), CeNi0.8-0.3Si1.2-1.7 (AlB2-type), similar to Ce2Ni2Si (unknown type structure), similar to Ce4.5Ni3.5Si2 (unknown type structure), Ce15Ni7Si10 (Pr15Ni7Si10-type), Ce5Ni1.85Si3 (Ce5Ni1.85Si3-type), Ce6Ni1.4Si3.4 (Ce6Ni1.67Si3-type), Ce7Ni2Si5 (Ce7Ni2Si5-type) and Ce3NiSi3 (Y3NiSi3-type) has been confirmed in this section. Moreover, the type structure has been determined for similar to Ce2Ni2Si (Mo2NiB2-type Ce2Ni2.5Si0.5) and similar to Ce4.5Ni3.5Si2 (W3CoB3-type Ce3Ni3-2.7Si1-1.3) and new ternary phases Ce2Ni6.25Si0.75 (Gd2Co7-type), CeNi7-7.6Si6.54 (GdNi7Si6-type) and similar to Ce27Ni42Si31 (unknown type structure) have been identified in this system. Quasi-binary phases, solid solutions, were detected at 870/1070 K for CeNi5, CeNi3 and CeSi2; while no appreciable solubility was observed for the other binary compounds of the Ce-Ni-Si system. As a prolongation of Rare Earth-Ni-Si system's isostructural rows, LaNi7Si6 and YNi6.6Si6.1 (GdNi7Si6-type), ScNi6Si6 (YCo6Ge6-type), NdNi6Si6 (YNi6Si6-type), {Tb, Ho}(2)Ni15Si2 (Th2Zn17-type), Nd2Ni2.3Si0.7 and Sm2Ni2.2Si0.8 (Mo2NiB2-type), Nd3Ni2.55Si1.45 (W3CoB3-type) and {Tb, Dy}(7)Ni50Si19 (Y7Ni49Si20-type) compounds were synthesized and investigated. Magnetic properties of the CeNi6Si6, CeNi7Si6, CeNi3.5Si4.2, Ce6Ni7Si4, CeNi5Si, Ce2Ni2.5Si0.5, Nd2Ni2.3Si0.7 and Dy7Ni50Si19 compounds have also been investigated and are presented here. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：290 / 303
页数：14
相关论文
共 57 条
  • [1] [Anonymous], BILB CRYST SERV CRYS
  • [2] [Anonymous], 1985, PEARSONS HDB CRYSTAL, P1
  • [3] [Anonymous], 1980, HDB FERROMAGNETIC MA
  • [4] [Anonymous], 1974, STRUKT FAZ FAZ PREVR, P219
  • [5] Phase diagram of the ternary Nd-Ni-Si system
    Bodak, O
    Salamakha, P
    Sologub, O
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 256 (1-2) : L8 - L9
  • [6] Bodak O. I., 1974, Soviet Physics - Crystallography, V19, P45
  • [7] Bodak O. I., 1972, Soviet Physics - Crystallography, V17, P439
  • [8] Bodak O. I., 1973, Inorganic Materials, V9, P777
  • [9] Bodak O.I., 1969, INORG MATER, V5, P1754
  • [10] Bodak O.I., 1969, Dopov. Akad. Nauk Ukr. RSR, P452
123456