Crystalline Materials: From Structure to Applications

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystal Engineering".

Deadline for manuscript submissions: closed (11 January 2024) | Viewed by 5503

Special Issue Editors


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Guest Editor
Department of Chemistry & Biomolecular Science, Clarkson University, 8 Clarkson Ave., Potsdam, NY 13699, USA
Interests: crystal engineering; structure–property correlation; supramolecular gel; coordination polymers; metal–organic frameworks; co-crystals

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Guest Editor
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
Interests: crystal engineering; polymorphism; supramolecular gel; photocatalysis; environmental chemistry
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Dear Colleagues,

We are organizing a Special Issue of Crystals, “Crystalline Materials: From Structure to Applications”, with the focus on subjects that fit within the theme captured by the title. We are pleased to invite you to contribute relevant papers to this Special Issue of Crystals.

We would welcome hearing back for you regarding whether you are interested in submitting a contribution. We look forward to your potential participation.

Dr. Adarsh Nayarassery Narayanan
Dr. Pathik Sahoo
Guest Editors

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Keywords

  • coordination polymer
  • metal-organic framework
  • porous structure
  • supramolecular interactions
  • hydrogen bonding

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Published Papers (4 papers)

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Research

14 pages, 3300 KiB  
Article
Dual-Channel Underwater Acoustic Topological Rainbow Trapping Based on Synthetic Dimension
by Jialin Zhong, Li Luo, Jiebin Peng, Yingyi Huang, Quanquan Shi, Jiajun Lu, Haobin Zhang, Feiwan Xie, Fugen Wu, Xin Zhang and Degang Zhao
Crystals 2024, 14(4), 311; https://doi.org/10.3390/cryst14040311 - 27 Mar 2024
Viewed by 1044
Abstract
The concept of “rainbow trapping” has generated considerable interest in wave propagation and energy harvesting, offering new possibilities for diverse and efficient acoustic wave operations. In this work, we investigate a dual-channel topological rainbow trapping device implemented within an underwater two-dimensional phononic crystal [...] Read more.
The concept of “rainbow trapping” has generated considerable interest in wave propagation and energy harvesting, offering new possibilities for diverse and efficient acoustic wave operations. In this work, we investigate a dual-channel topological rainbow trapping device implemented within an underwater two-dimensional phononic crystal based on synthetic dimension. The topological edge states with different frequencies are separated and trapped at different spatial locations. Acoustic waves propagate simultaneously along two boundaries due to the degeneracy of the edge states. In particular, the propagation of a dual-channel topological rainbow is also realized by using a bend design. This work contributes to the advancement of multi-channel devices in synthetic space and provides a reference for the design of highly efficient underwater acoustic devices. Full article
(This article belongs to the Special Issue Crystalline Materials: From Structure to Applications)
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11 pages, 2652 KiB  
Article
First-Principles Investigations of the Electronic Structure and Mechanical Characteristics of Nd3+-Doped YAlO3 Crystals
by Shuai Meng, Aocheng Li, Kun Li, Yanjie Song, Zhenxing Qin, Rui Zhang, Yufei Zhang, Weijie Ren and Wen Yang
Crystals 2024, 14(4), 293; https://doi.org/10.3390/cryst14040293 - 22 Mar 2024
Cited by 1 | Viewed by 1005
Abstract
Near-infrared laser radiation based on Nd3+-doped yttrium ortho-aluminate (Nd:YAlO3, Nd:YAP) has garnered significant interest regarding solid-state lasers. Nevertheless, the crystal microstructures and electronic characteristics of Nd:YAP are still unclear, and the unique physical properties underlying its enormous applications require [...] Read more.
Near-infrared laser radiation based on Nd3+-doped yttrium ortho-aluminate (Nd:YAlO3, Nd:YAP) has garnered significant interest regarding solid-state lasers. Nevertheless, the crystal microstructures and electronic characteristics of Nd:YAP are still unclear, and the unique physical properties underlying its enormous applications require clarification. In this study, we conducted first-principles calculations at the atomic level to explore the electronic properties and mechanical characteristics of both pure YAP and Nd3+-doped YAP. The results suggest that the substitution of the Y3+ ion site with the Nd3+ impurity ion induces slight structural distortion in the YAP crystal lattice. An impurity band emerges between the original conduction band and the valence band, attributed to the 4f orbital of the Nd3+ ion, exerting a substantial influence on the narrowing of the band gap. Through an analysis of the mechanical characteristics of both pure YAP and Nd:YAP, we conclude that the incorporation of Nd3+ atoms leads to a reduction in the mechanical properties of YAP to a certain extent. Our study can serve as a foundational data source for investigations into material performance, especially for the application of Nd:YAP in solid-state laser systems. Full article
(This article belongs to the Special Issue Crystalline Materials: From Structure to Applications)
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13 pages, 7310 KiB  
Article
Study of the Structural-Phase State of Hydroxyapatite Coatings Obtained by Detonation Spraying at Different O2/C2H2 Ratios
by Daryn Baizhan, Zhuldyz Sagdoldina, Dastan Buitkenov, Yedilzhan Kambarov, Aiym Nabioldina, Venera Zhumabekova and Gulsym Bektasova
Crystals 2023, 13(11), 1564; https://doi.org/10.3390/cryst13111564 - 2 Nov 2023
Cited by 2 | Viewed by 1365
Abstract
This work studies the influence of the composition of an acetylene–oxygen explosive O2/C2H2 mixture on the structure and properties of hydroxyapatite coatings obtained by detonation spraying. The molar ratios of O2/C2H2 were 2.61; [...] Read more.
This work studies the influence of the composition of an acetylene–oxygen explosive O2/C2H2 mixture on the structure and properties of hydroxyapatite coatings obtained by detonation spraying. The molar ratios of O2/C2H2 were 2.61; 3.03 and 3.35; the explosive charge was between 73 and 77%. The results of X-ray phase analysis showed partial conversion of the hydroxyapatite (HA) phase to the tricalcium phosphate (α-TCP) phase and formation of the amorphous phase during detonation sputtering. The formation of a small amount of the α-TCP phase during detonation spraying of HA is obviously due to structural transformations occurring during the heating of the material by detonation products. In addition, very rapid cooling of molten particles leads to the formation of the amorphous phase. The study results of the microstructure of the cross sections of the formed coatings, conducted using scanning electron microscopy, indicate that an increase in the O2/C2H2 ratio leads to increased porosity in the coatings. Additionally, an increase in the explosive charge by 77% results in the appearance of transverse cracks in the coating. Full article
(This article belongs to the Special Issue Crystalline Materials: From Structure to Applications)
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19 pages, 9460 KiB  
Article
Quantitative Analysis of the Geometrically Representative Volume Element of the Yellow River’s Granular Ice Microstructure during the Freezing Period
by Yu Deng, Juan Wang, Jiao Zhou and Peng Zhang
Crystals 2023, 13(7), 1021; https://doi.org/10.3390/cryst13071021 - 28 Jun 2023
Cited by 1 | Viewed by 894
Abstract
As a naturally polycrystalline material, Yellow River ice exhibits complex mechanical properties that are closely related to its internal microstructure. To study the micromechanical properties of this ice, the geometrically representative volume element (RVE) and a method for determining it are proposed. By [...] Read more.
As a naturally polycrystalline material, Yellow River ice exhibits complex mechanical properties that are closely related to its internal microstructure. To study the micromechanical properties of this ice, the geometrically representative volume element (RVE) and a method for determining it are proposed. By observing and quantifying trends in the microstructural characteristics of the granular ice, a micro-numerical model of Yellow River ice is established. Based on the calculations and analyses of randomness and similarity across model samples, the dimensions of a geometric RVE of granular ice in the Yellow River are quantitatively determined. The research shows that the geometric representation of Yellow River granular ice is 20–24 times larger than the average grain of Yellow River granular ice. These results provide a technique to accurately study, at a microscopic level, the relationship between the material properties of each phase and their macromechanical response. It also provides a theoretical basis for studying the fracture failure mechanism of Yellow River ice at multiple scales. Full article
(This article belongs to the Special Issue Crystalline Materials: From Structure to Applications)
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