ternary compound
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2021 ◽  
Vol 313 ◽  
pp. 125522
Author(s):  
Yang Li ◽  
Xiao Ma ◽  
Hanyu Tang ◽  
Jianzhong Pei ◽  
Dong Li ◽  
...  

Author(s):  
F. Sadygov ◽  
T. Ilyasly ◽  
Z. Ismailov ◽  
R. Mirzoeva ◽  
S. Mamedova ◽  
...  

The Bi2Te3-Er2Te3 section of the Er-Bi-Te ternary system was investigated by the methods of differential thermal, X-ray phase and microstructural analyzes and also by measuring the microhardness and density. In the system, a ternary compound of the composition ErBiTe3 is formed, which crystallizes in a hexagonal lattice with the following parameters: a = 4,20; c = 31,11Å (c / a = 7,1) The solubility on the side of Bi2Te3 is 6 mol% at room temperature. The electrophysical properties of ErBiTe3 compounds have been studied.


2021 ◽  
Vol 2101 (1) ◽  
pp. 012069
Author(s):  
Shibin Liu ◽  
Jing Wang ◽  
Jianwei Xu ◽  
Xiangcai Meng

Abstract Used Al-13wt%Si alloy was as raw material, the influence mechanism of Al-Sr, Al-P and Al-RE ternary compound modifier was studied by casting technology. The effects of P, Sr and RE modification on Al-13wt% Si were studied by metallographic microscope, scanning electron microscope and X-ray. The effects of the addition order and amount of modifier on the microstructure of Al-13wt% Si were investigated The results show that compared with a single modifier, P + RE + Sr ternary composite modifier has more obvious modification effect on eutectic silicon in Al-13%Si alloy: the microstructure of different morphology can be obtained by using different amount and order of adding modifier. When the amount and order of modifier are 0.5wt%Sr, 0.7wt%P, 1.5wt%RE,the eutectic silicon with small size and uniform distribution can be obtained. Eutectic silicon consists of 70 μm, the slender lamella is refined to 5 μm.


Author(s):  
Handan Özlü Torun ◽  
Rabia Kırkgeçit ◽  
Fatma Kılıç Dokan ◽  
Esra Öztürk

Author(s):  
Alexander Gese ◽  
Shahriar Kermanshahian ◽  
Gregor Schnakenburg ◽  
Zsolt Kelemen ◽  
Laszlo Nyulaszi ◽  
...  
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2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hisanori Yamane ◽  
Simon Steinberg

Abstract Metallic black platelet single crystals of a new ternary compound, Sr7N2Sn3, were obtained by heating Sr and Sn in a Na flux together with NaN3 as a nitrogen source at 1073 K, followed by slow cooling. Single-crystal X-ray analysis revealed that this compound crystallizes in an orthorhombic cell with the cell parameters a = 10.4082(2), b = 18.0737(4), and c = 7.43390(10) Å (space group Pmna, Z = 2), and has a layered (modular) antiperovskite-type structure which could be related to the inverse structure of Ca2Nb2O7 ((Ca2)[Ca2Nb4O14]). Four-membered zigzag [Sn4] chains are situated between slabs comprising four antiperovskite layers cut by the (110) plane of the ideal anitiperovskite structure, and Sr7N2Sn3 can be expressed as [Sn4][Sn2N4Sr14]. Although an electron-precise valence electron distribution according to the formula (Sr2+)14(N3−)4(Sn4−)2([Sn4]8−) is proposed for this ternary compound, yet, there are certain structural peculiarities which cannot be explained by this idealized picture. Therefore, first principles-based means were employed to account for the aforementioned structural features.


2021 ◽  
Vol 410 ◽  
pp. 531-536
Author(s):  
Victor Georgievich Shmorgun ◽  
Artem I. Bogdanov ◽  
Dmitriy V. Shcherbin

The paper presents the investigation on the structure, chemical and phase composition of the diffusion coating formed during the liquid-phase heat treatment in the explosion-welded Cr20Ni80 + AD1 bimetal. It is shown that the coating structure consists of NiAl3, CrAl7, Ni2Al3 intermetallic inclusions, as well as a metastable ternary compound – τ2-phase (Al77.5Cr12.5Ni10) of different dispersion and morphology. There are no crystallization defects in the coating structure.


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