{"title":"New Ternary Compounds Yb2Pt3Si2 and Yb3Pt5Si: Crystal Structures and Phase Equilibria","authors":"S. E. Safronov, A. V. Gribanov, S. F. Dunaev","doi":"10.1134/S0020168524700730","DOIUrl":null,"url":null,"abstract":"<p>Two new ternary intermetallic compounds, Yb<sub>2</sub>Pt<sub>3</sub>Si<sub>2</sub> and Yb<sub>3</sub>Pt<sub>5</sub>Si, have been identified in the Yb–Pt–Si system in the composition region from 0 to 42 at % silicon and from 20 to 43 at % ytterbium. Using Rietveld refinement of X-ray powder diffraction data, we have determined crystallographic parameters of the new compounds. Yb<sub>2</sub>Pt<sub>3</sub>Si<sub>2</sub> has an orthorhombic structure (Sc<sub>2</sub>Pt<sub>3</sub>Si<sub>2</sub> structure type, sp. gr. <i>Pbam</i>). The Yb<sub>3</sub>Pt<sub>5</sub>Si compound crystallizes in a body-centered orthorhombic structure (Ce<sub>3</sub>Pd<sub>5</sub>Si structure type, sp. gr. <i>Imma</i>). Phase equilibria in the 850°C isothermal section of the Yb–Pt–Si system have been studied in the above composition region.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"60 5","pages":"575 - 580"},"PeriodicalIF":0.7000,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S0020168524700730","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two new ternary intermetallic compounds, Yb2Pt3Si2 and Yb3Pt5Si, have been identified in the Yb–Pt–Si system in the composition region from 0 to 42 at % silicon and from 20 to 43 at % ytterbium. Using Rietveld refinement of X-ray powder diffraction data, we have determined crystallographic parameters of the new compounds. Yb2Pt3Si2 has an orthorhombic structure (Sc2Pt3Si2 structure type, sp. gr. Pbam). The Yb3Pt5Si compound crystallizes in a body-centered orthorhombic structure (Ce3Pd5Si structure type, sp. gr. Imma). Phase equilibria in the 850°C isothermal section of the Yb–Pt–Si system have been studied in the above composition region.
在Yb-Pt-Si体系中，在硅含量为0 ~ 42%和钇含量为20 ~ 43%的范围内，发现了两种新的三元金属间化合物Yb2Pt3Si2和Yb3Pt5Si。利用x射线粉末衍射数据的Rietveld细化，我们确定了新化合物的晶体学参数。Yb2Pt3Si2具有正交结构（Sc2Pt3Si2结构类型，sp. gr. pham）。Yb3Pt5Si化合物结晶为体心正交结构（Ce3Pd5Si结构类型，sp. gr. Imma）。在上述成分区研究了Yb-Pt-Si体系850°C等温段的相平衡。
期刊介绍：
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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