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Crystals, Volume 15, Issue 3

March 2025 - 88 articles

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Cover Story: Nematic liquid crystals exhibit topological defects which are resolved by polarising microscopy. This makes them ideal candidates to study the dynamics of defect annihilation, a process which is observed in practically all materials and over length scales from atoms to cosmological dimensions. Umbilical defects are a clean system to investigate annihilation scaling laws D~tα (D: distance, t: time), as only defects of strength s = ±1 are formed. Defects of opposite strength attract and commonly annihilate via a universal square-root law with α = 0.5. Using machine learning techniques, we show that for liquid crystal systems doped with nanoparticles of different size and concentration, this universality of the annihilation exponent α = 0.5 seems to be violated with exponents approaching α ≈ 0.37 ± 0.02 for increasing concentration and particle size. View this paper

Articles (88)

  • Article
  • Open Access
970 Views
11 Pages

Enhancing the Energy Storage Properties and Breakdown Strength of Lead-Free Bismuth-Sodium Titanate-Based Ceramics Through NaNbO3 Doping

  • Jingxia Gao,
  • Haizhou Guo,
  • Hongxia Li,
  • Hui Li,
  • Liqin Yue,
  • Rui Wang,
  • Jiangyan Si,
  • Qiaoqiao Zhao and
  • Yangyang Zhang

20 March 2025

Dielectric capacitors with a high density of recoverable energy storage are extremely desirable for a variety of uses. However, these capacitors often exhibit lower breakdown strengths and energy efficiency compared to other materials, which poses si...

  • Article
  • Open Access
3 Citations
855 Views
37 Pages

The Diversity of Crystals, Microstructures and Texture That Form Ostreoidea Shells

  • Anna Sancho Vaquer,
  • Erika Griesshaber,
  • Carmen Salas,
  • Elizabeth M. Harper,
  • Antonio G. Checa and
  • Wolfgang W. Schmahl

20 March 2025

The shells of bivalved molluscs comprise, in general, few microstructures and very few textures. In the case of ostreoid oysters, a high diversity has been observed. The shells consist of columnar-prismatic, foliated, granular calcite and myostracal-...

  • Article
  • Open Access
629 Views
12 Pages

Regulation of the Thermoelectric Properties of Perovskite RECoO3 Ceramics via High-Entropy Engineering

  • Kezhen Zhang,
  • Chengchao Yang,
  • Xianpeng Ao,
  • Yulong Zhao,
  • Weihao Tan,
  • Jinglong Wu,
  • Bin Liu,
  • Kun Dong,
  • Liangwei Chen and
  • Lan Yu

20 March 2025

Entropy engineering has been demonstrated to be an effective strategy to regulate the thermoelectric properties of materials. In this work, we report a series of single-phase cubic (La0.25Sr0.25Ba0.25Ca0.25)CoO3 (LSBC), (La0.25Nd0.25Sr0.25Ba0.25)CoO3...

  • Article
  • Open Access
1 Citations
1,167 Views
20 Pages

20 March 2025

This work investigates the stirring effect on p-Acetamidobenzoic Acid (p -AABA) crystal morphology through single crystal cultivation, crystal face growth rate, and nucleation supersaturation measurements, molecular simulation (MS), and computational...

  • Article
  • Open Access
1 Citations
1,096 Views
15 Pages

19 March 2025

This study investigates the interaction between thermochromic liquid crystal (TLC) inks and bacterial nanocellulose (BNC), emphasizing their compatibility for smart packaging applications. While the chiral nematic structure of TLC pigments dictates t...

  • Article
  • Open Access
2 Citations
844 Views
12 Pages

Research on the Fabrication of X-Cut Near Stoichiometric Lithium Niobate Wafers

  • Zixuan Dong,
  • Qingyan Xu,
  • Shuaijie Liang,
  • Jiashun Si,
  • Mengfan Wang,
  • Xuefeng Zhang and
  • Jilin He

19 March 2025

This article discusses the preparation of twin free X-cut lithium niobate wafers using the diffusion method. The liquid electrode method was used to eliminate parasitic microdomains at dislocations. According to research, the Li-rich lithium niobate...

  • Review
  • Open Access
1,315 Views
26 Pages

19 March 2025

B30.2 domains, sometimes referred to as PRY/SPRY domains, were originally identified by sequence profiling methods at the gene level. The B30.2 domain comprises a concanavalin A-like fold consisting of two twisted seven-stranded anti-parallel β-...

  • Article
  • Open Access
2 Citations
3,424 Views
17 Pages

Corrosion Mechanism and Properties of 316L Stainless Steel in NaCl-KCl Molten Salt at High Temperatures

  • Ruimin Lv,
  • Xian Tang,
  • Zhemian Ying,
  • Hua Ai,
  • Hua Sun,
  • Wei Zhang,
  • Ying Wang,
  • Jinjuan Cheng and
  • Long Yan

18 March 2025

The corrosion properties of 316L stainless steel (316L SS) alloy within molten NaCl-KCl salt were explored through a static immersion experiment carried out at 700 °C under Ar flow for 25, 50, 100, 200, and 400 h. The loss in weight of the corrod...

  • Article
  • Open Access
1,068 Views
14 Pages

Evaluation of Fracture Toughness of γ-Phase Containing Cemented Carbides by Using Through-Thickness Micronotches Shaped by Ultrashort Pulsed Laser Ablation

  • Marc Serra,
  • Ramon Batista,
  • Núria Cinca,
  • Elena Tarrés,
  • Emilio Jiménez-Piqué,
  • Pablo Moreno and
  • Luis Llanes

18 March 2025

WC-Co cemented carbides, commonly known as hardmetals, are composite materials constituted by hard ceramic particles embedded in a ductile metal matrix. Due to their unique microstructural assemblage, these materials exhibit excellent combinations of...

  • Article
  • Open Access
747 Views
16 Pages

Microstructure and Reciprocating Sliding Wear Resistance Evaluation on SiMo Ductile Iron Low Alloyed with Cobalt

  • Eduardo Colin-García,
  • Alejandro Cruz-Ramírez,
  • Marisa Moreno-Ríos,
  • Ricardo Gerardo Sánchez-Alvarado,
  • José Antonio Romero-Serrano,
  • Juan Cancio Jiménez-Lugos,
  • Armando Irvin Martínez-Pérez and
  • Edgar Ernesto Vera-Cárdenas

18 March 2025

High silicon and molybdenum (SiMo) ductile irons present a metallic matrix composed principally of ferrite with little volume fraction of pearlite and carbides. In this work, two SiMo ductile irons with similar levels of silicon, 0.3% Mo (DI-0.3Mo) a...

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Crystals - ISSN 2073-4352Creative Common CC BY license