Hydrogenation properties and crystal structures of Ti−Mn-V BCC solid solution alloys

2001 ◽  
Vol 7 (2) ◽  
pp. 165-168 ◽  
Author(s):  
Etsuo Akiba ◽  
Yumiko Nakamura
Keyword(s):  
Solid Solution ◽  
Crystal Structures

scholarly journals FABRICATION AND PROPERTIES OF Co DOPED Bi0.5K0.5TiO3 – BiFeO3 SOLID SOLUTION

2018 ◽  
Vol 56 (1A) ◽  
pp. 197
Author(s):  
Nguyen Hoang Tuan
Keyword(s):  
Solid Solution ◽  
Raman Spectroscopy ◽  
Magnetic Properties ◽  
Crystal Structures ◽  
Solid Solutions ◽  
Sol Gel ◽  
Structure And Properties ◽  
Antiferromagnetic Ordering ◽  
Co Doped ◽  
Good Agreement

In this study, we present some results on the structure and properties of the solid solution of Bi0.5K0.5TiO3– BiFeCoO3 (BKT – BFCO) by Sol-gel method. Crystal structures of BKT – BFCO solid solutions were studies by XRD and Raman spectroscopy. The results were in good agreement with the previous reports of Bi0.5K0.5TiO3– BiFeO3 (BKT – BFO) and Bi0.5K0.5TiO3 – BiCoO3 (BKT – BCO) solid solutions. The magnetic properties were investigated via unsaturated M-H loop, which showed the competition of paramagnetic and antiferromagnetic ordering in BKT – BFCO. However, differing from the BKT – BFO and BKT – BCO solid solutions, the unclear values of saturated magnetism in BKT – BFCO raised the unexplained question, which needed further studies.

Structural Evolution in the Systems TAl3-xGex (T = Zr, Hf)

2019 ◽  
Vol 289 ◽  
pp. 71-76
Author(s):  
Danylo Maryskevych ◽  
Yaroslav O. Tokaychuk ◽  
Roman E. Gladyshevskii
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Crystal Structures ◽  
Structural Evolution ◽  
Structure Type ◽  
Ternary Compounds ◽  
Pearson Symbol ◽  
The Family ◽  
Binary Compounds ◽  
High Temperature Modification

The crystal structures of the binary compounds ZrAl3 and HfAl3 at 600°C belong to the structure type ZrAl3 (Pearson symbol tI16, space group I4/mmm, a = 4.00930(11), c = 17.2718(7) Å for ZrAl3 and a = 3.9849(3), c = 17.1443(15) Å for HfAl3). Substitution of Ge atoms for Al atoms in ZrAl3 and HfAl3 led to the formation of the ternary compounds ZrAl2.52(1)Ge0.48(1) and HfAl2.40(1)Ge0.60(1), respectively, where the latter is probably part of a solid solution extending from the high-temperature modification of HfAl3. The crystal structures belong to the tetragonal structure type ht-TiAl3 (tI8, I4/mmm, a = 3.92395(11), c = 9.0476(4) Å for ZrAl2.52Ge0.48 and a = 3.9021(2), c = 8.9549(8) Å for HfAl2.40Ge0.60). The structure types ZrAl3 and ht-TiAl3 are both members of the family of close-packed structures.

The crystal structures and physical properties of the solid solution compound Ba 5 Y 8− x Mn 4 O 21−1.5 x ( x = 0,1)

2012 ◽  
Vol 21 (6) ◽  
pp. 066102
Author(s):  
Qing-Qing Gao ◽  
Jing-Bo Li ◽  
Shi-Jia Song ◽  
Guang-Hui Rao ◽  
Jun Luo ◽  
...  
Keyword(s):  
Solid Solution ◽  
Physical Properties ◽  
Crystal Structures

Syntheses and Crystal Structures of the Solid Solution Sr4OBr2.89(2)Cl3.11(2) and the Elusive Ba2OBr2

2011 ◽  
Vol 66 (10) ◽  
pp. 1000-1004
Author(s):  
Olaf Reckeweg ◽  
Francis J. DiSalvo
Keyword(s):  
Solid Solution ◽  
Solid State ◽  
Single Crystals ◽  
Crystal Structures ◽  
Solid State Reactions ◽  
Molar Ratio ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
Cell Parameters

Transparent and colorless single crystals of the compounds Sr4OBr2.89(2)Cl3.11(2) and Ba2OBr2 were obtained by solid-state reactions of SrCl2, SrBr2 and SrO (3 : 3 : 2 molar ratio) or by using an excess of BaO together with BaBr2 and Ba as a flux with the molar ratio 3 : 2 : 2, respectively. Ba2OBr2 crystals are isopointal to K2ZnO2 adopting the orthorhombic space group Ibam (no. 72, Z = 4) with the cell parameters a = 7247.44(10), b = 1297.76(20) and c = 657.43(10) pm. Sr4OBr2.89(2)Cl3.11(2) is isotypic to Ba4OCl6 (or isopointal to K6ZnO4) and crystallizes in the hexagonal space group P63mc (no. 186, Z = 2) with the cell parameters a = 982.20(4) and c = 750.41(7) pm.

True and brittle micas: composition and solid-solution series

2007 ◽  
Vol 71 (3) ◽  
pp. 285-320 ◽  
Author(s):  
G. Tischendorf ◽  
H.-J. Förster ◽  
B. Gottesmann ◽  
M. Rieder
Keyword(s):  
Solid Solution ◽  
Crystal Structures ◽  
Solid Solutions ◽  
Solid Solution Series ◽  
Octahedral Sheet ◽  
Tetrahedral Sheet ◽  
Solution Series ◽  
The Common ◽  
End Members ◽  
Graphical Presentation

AbstractMicas incorporate a wide variety of elements in their crystal structures. Elements occurring in significant concentrations in micas include: Si, IVAl, IVFe3+, B and Be in the tetrahedral sheet; Ti, VIAl, VIFe3+, Mn3+, Cr, V, Fe2+, Mn2+, Mg and Li in the octahedral sheet; K, Na, Rb, Cs, NH4, Ca and Ba in the interlayer; and O, OH, F, Cl and S as anions. Extensive substitutions within these groups of elements form compositionally varied micas as members of different solid-solution series. The most common true K micas (94% of almost 6750 mica analyses) belong to three dominant solid-solution series (phlogopite–annite, siderophyllite–polylithionite and muscovite–celadonite). Theirclassification parameters include: Mg/(Mg+Fetot) [=Mg#] formicas with VIR >2.5 a.p.f.u. and VIAl <0.5 a.p.f.u.; Fetot/(Fetot+Li) [=Fe#] formicas with VIR >2.5 a.p.f.u. and VIAl >0.5 a.p.f.u.; and VIAl/(VIAl+Fetot+Mg) [=Al#] formicas with VIR <2.5 a.p.f.u. The common true K micas plot predominantly within and between these series and have Mg6Li <0.3 a.p.f.u. Tainiolite is a mica with Mg6Li >0.7 a.p.f.u., or, fortr ansitional stages, 0.3–0.7 a.p.f.u. Some true K mica end-members, especially phlogopite, annite and muscovite, form binary solid solutions with non-K true micas and with brittle micas (6% of the micas studied). Graphical presentation of true K micas using the coordinates Mg minus Li (= mgli) and VIFetot+Mn+Ti minus VIAl (= feal) depends on theirclassification according to VIR and VIAl, complemented with the 50/50 rule.

scholarly journals Average and Local Crystal Structures of (Ga1–xZnx)(N1–xOx) Solid Solution Nanoparticles

2015 ◽  
Vol 54 (23) ◽  
pp. 11226-11235 ◽  
Author(s):  
Mikhail Feygenson ◽  
Joerg C. Neuefeind ◽  
Trevor A. Tyson ◽  
Natalie Schieber ◽  
Wei-Qiang Han
Keyword(s):  
Solid Solution ◽  
Crystal Structures
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