Crystallography Reports最新文献_第10页

Preparation Features and Some Properties of Nickel Chloride Crystal Hydrates 氯化镍晶体水合物的制备、特点及一些性能

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601443

V. A. Komornikov, D. S. Matveeva, I. S. Timakov, E. B. Rudneva, A. E. Voloshin

引用次数: 0

Annealing-Induced Structural Transformation in NiO Thin Films NiO薄膜退火诱导的结构转变

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601601

E. M. Pashaev, A. P. Nosov, I. A. Subbotin, A. O. Belyaeva, O. A. Kondratev, S. G. Nikolaeva, I. N. Trunkin, A. L. Vasiliev

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Synthesis of Crystals of Ultimate Sulfides in Sulfur Melt in a Stationary Temperature Gradient 固定温度梯度下硫熔体中最终硫化物晶体的合成

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601674

D. A. Chareev, V. O. Zyabchenkov, S. A. Badmaeva, A. N. Nekrasov

{"title":"Synthesis of Crystals of Ultimate Sulfides in Sulfur Melt in a Stationary Temperature Gradient","authors":"D. A. Chareev, V. O. Zyabchenkov, S. A. Badmaeva, A. N. Nekrasov","doi":"10.1134/S1063774525601674","DOIUrl":"10.1134/S1063774525601674","url":null,"abstract":"The possibilities of growing ultimate sulfide crystals from a sulfuric melt in a stationary temperature gradient are described. The optimum synthesis mode is achieved when the temperature of the hot end (charge) is 550°C and the temperature of the cold end (crystallization region) is 460°C. As a result, TiS3, ZrS3, HfS3, V40S60, NbS3, TaS3, PdS2, CuS, Ag2S, metallic Au, HgS, CdS, Ga2S3, In2S3, SiS2, SnS2, PbS, Sb2S3, and Bi2S3 crystals of millimeter and submillimeter sizes were grown. Only polycrystalline agglomerates several tens of micrometers in size were obtained when transferring some metals, in particular, tungsten. The possibility of growing crystals of double sulfides was demonstrated using CrPS3 as an example. The considered technique makes it possible to obtain crystals of the required quality without special equipment; the small size of crystals is sufficient for laboratory study.","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 6","pages":"1047 - 1052"},"PeriodicalIF":0.5,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145814574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Problems with Synchrotron Radiation Phase-Contrast Imaging of Micro-objects in Crystals 晶体中微物体的同步辐射相衬成像问题

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601261

T. S. Argunova, V. G. Kohn, J.-H. Lim

引用次数: 0

Determination of the Terminal Solid Solubility of Hydrogen in Hafnium by the Hydrogen Permeation Method 氢渗透法测定氢在铪中的末端固溶度

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601364

E. A. Denisov, V. A. Dmitriev, E. P. Gromov, A. A. Selivanov, A. D. Shchadnev

引用次数: 0

Evolution of the Cluster Structure of Fluorite Nonstoichiometric Crystals of the Homologous Series ({text{C}}{{{text{a}}}_{{1-x}}}{{R}_{x}}{{{text{F}}}_{{2 + x}}}) (R = Sc, Y, La–Lu) in the Composition–Temperature System 同源系萤石非化学计量晶体({text{C}}{{{text{a}}}_{{1-x}}}{{R}_{x}}{{{text{F}}}_{{2 + x}}}) （R = Sc， Y, La-Lu）在组成-温度体系中的团簇结构演化

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S106377452560084X

E. A. Sulyanova, B. P. Sobolev, V. I. Nikolaichik, A. S. Avilov

{"title":"Evolution of the Cluster Structure of Fluorite Nonstoichiometric Crystals of the Homologous Series ({text{C}}{{{text{a}}}_{{1-x}}}{{R}_{x}}{{{text{F}}}_{{2 + x}}}) (R = Sc, Y, La–Lu) in the Composition–Temperature System","authors":"E. A. Sulyanova, B. P. Sobolev, V. I. Nikolaichik, A. S. Avilov","doi":"10.1134/S106377452560084X","DOIUrl":"10.1134/S106377452560084X","url":null,"abstract":"The unified model of the cluster structure of nanostructured fluorite crystals in the temperature–composition (T–x) system, proposed by the authors, was used to clarify the evolution of the cluster structure of crystals of the homologous series ({text{C}}{{{text{a}}}_{{1-x}}}{{R}_{x}}{{{text{F}}}_{{2 + x}}}) (R = La–Lu, Y). The defect structures of Ca0.75Nd0.25F2.25, Ca0.80Tb0.20F2.20, and Ca0.75Y0.25F2.25 were studied by X-ray diffraction analysis at 293 and 85 K. They are based on octa-cubic clusters with cuboctahedron cores {F12}. The cores are formed by interstitial anions at the positions 32f (f-type clusters in Ca0.75Nd0.25F2.25 and Ca0.80Tb0.20F2.20) and 48i (i-type clusters in Ca0.75Y0.25F2.25). Obtaining diffraction data with a resolution of 0.29 Å made it possible to identify cation displacements at the positions 24e and 32f in Ca0.75Y0.25F2.25 and clarify the occupancies of these positions. Lowering the temperature from 293 to 85 K does not change the cluster structure of Ca0.75Nd0.25F2.25, Ca0.80Tb0.20F2.20, and Ca0.75Y0.25F2.25. An electron diffraction study of the Ca0.75Nd0.25F2.25 crystal revealed (for the first time) diffuse scattering from structural defects with sizes on the order of one unit cell in crystals of the homologous series ({text{C}}{{{text{a}}}_{{1-x}}}{{R}_{x}}{{{text{F}}}_{{2 + x}}}).","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 6","pages":"917 - 927"},"PeriodicalIF":0.5,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145814572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship between Lattice Parameters and Cation Radius in the Homologous Series of Rare-Earth Oxofluorides with the fluorite structure 具有萤石结构的稀土氧氟化物同源系中晶格参数与阳离子半径的关系

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601170

N. I. Sorokin

{"title":"Relationship between Lattice Parameters and Cation Radius in the Homologous Series of Rare-Earth Oxofluorides with the fluorite structure","authors":"N. I. Sorokin","doi":"10.1134/S1063774525601170","DOIUrl":"10.1134/S1063774525601170","url":null,"abstract":"The relationship between the lattice parameters a and the ionic radii rR of cations in the homologous series of rare-earth oxofluorides with the general formula ROF (12R = La−Er, Y) and the fluorite structure (sp. gr. (Fmbar {3}m)) was investigated. It was found that all ROF compounds obey the following equation: a [Å] = 2.365rR + 3.004. The special electronic structure of the Y3+ cation does not lead to deviation from the correlation equation. The obtained equation makes it possible to determine (from the structural data for fluorite oxofluorides AnOF (An = Ac, Pu, Cm, Cf)) the unknown ionic radii of triply charged actinium cations Ac3+ (rAc = 1.24 Å) and actinides Pu3+ (rPu = 1.14 Å), Cm3+ (rCm = 1.10 Å), and Cf3+ (rCf = 1.08 Å) for the coordination number 8. Within the framework of the crystal chemical model, the values of the “effective” radii of the fluorine ion (rF = 1.249 ± 0.017), oxygen ion (rO = 1.373 ± 0.005), and the average radius of the anion (rO,F = 1.327 ± 0.009 Å) for fluoride, oxide, and oxofluoride compounds with the fluorite structure were refined. The values of rF, rO, and rO,F can be used in calculations of the crystallochemical properties of fluorite oxofluoride solid solutions.","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 6","pages":"892 - 896"},"PeriodicalIF":0.5,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145814520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Features of Thermal Expansion and Magnetostructural Phase Diagram of the Multicomponent System (Tb,Y,Sm)Fe2 （Tb，Y,Sm）Fe2多组分体系的热膨胀特征及磁结构相图

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525601583

G. A. Politova, N. Yu. Pankratov, I. S. Tereshina, T. A. Aleroeva, Z. S. Umkhaeva, O. A. Alekseeva, A. V. Filimonov, A. I. Rudskoy

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New Data on the Isomorphism in Eudialyte-Group Minerals: XIII. Crystal Structure of “Ferrofeklichevite”—a Potentially New High-Calcium Mineral from Khibiny Massif 易溶物群矿物同构性的新资料：13。希比尼地块潜在的新型高钙矿物“铁长石”的晶体结构

IF 0.5 4区材料科学

Crystallography Reports Pub Date : 2025-12-25 DOI: 10.1134/S1063774525600619

R. K. Rastsvetaeva, V. M. Gridchina, N. V. Chukanov, S. M. Aksenov

引用次数: 0

Microhardness of Guanylurea Hydrogen Phosphite Single Crystal 冠脲亚磷酸氢单晶的显微硬度