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Crystals, Volume 15, Issue 2

February 2025 - 100 articles

Cover Story: This study investigates the self-assembly of KTOF4 sphere–rod amphiphilic molecules in mixed water–dioxane solvents. TEM uncovers self-assembled spherical structures of KTOF4 in dilute solutions. These spheres are filled with smectic-like layers of KTOF4 which are separated by layers of the solution. There are two types of layer packings: (i) concentric spheres and (ii) flat layers. The layered structures resemble thermotropic smectic A liquid crystals and their lyotropic analogs. The layered packings reveal edge and screw dislocations. The evaporation of the solvent produces a bulk birefringent liquid crystal phase with textures resembling that of uniaxial nematic liquid crystals. These findings demonstrate that sphere–rod molecules produce a variety of self-assembled structures that are controlled by the solvent properties. View this paper
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Articles (100)

  • Article
  • Open Access
1 Citations
1,214 Views
15 Pages

19 February 2025

Ilmenite concentrate has emerged as the key titanium raw material for exploitation and utilization, playing a crucial role in the preparation of metallic titanium and titanium dioxide. However, the presence of impurities such as Fe, Ca, and Mg in ilm...

  • Article
  • Open Access
909 Views
13 Pages

Interactions Between Sc2O3 Ceramics and Calcium–Magnesium–Alumina–Silicate (CMAS) at Elevated Temperature

  • Zupeng Mo,
  • Zijian Mo,
  • Zhiyun Yu,
  • Yifan Cheng,
  • Yiling Miao and
  • Tianquan Liang

19 February 2025

The thermochemical interactions of Sc2O3 ceramics with CMAS at 1250 °C and 1300 °C were investigated in this paper. A continuously dense reaction layer (DRL) forms on the surface of the ceramic at the beginning of the reaction within 15 min,...

  • Article
  • Open Access
1,426 Views
20 Pages

19 February 2025

Silicon carbide is a covalently bonded engineering material and structural ceramic with excellent mechanical properties, high resistance to oxidation, corrosion, and wear, and tunable thermal conductivity. The exceptional thermal conductivity of sili...

  • Article
  • Open Access
904 Views
17 Pages

18 February 2025

In this study, the authors employed first-principles calculations to investigate the adsorption and decomposition processes involved in non-catalytic growth of vapor-growth carbon fiber (VGCF) using a non-catalytic growth method. The adsorption and d...

  • Article
  • Open Access
1,310 Views
18 Pages

Structural Properties of PE-Based Wood–Plastic Composites Depending on the Share of Lignocellulosic Particles

  • Izabela Betlej,
  • Marek Barlak,
  • Sławomir Borysiak,
  • Aneta Bombalska,
  • Barbara Nasiłowska,
  • Ján Sedliačik and
  • Piotr Borysiuk

18 February 2025

Wood–plastic composites (WPCs) are an excellent example of materials that, thanks to the possibility of using recycled raw materials, directly fit into the circular economy. The properties and quality of composites depend largely on the appropr...

  • Article
  • Open Access
1 Citations
748 Views
15 Pages

Kinetics of Reduction of Iron Ore Powder by Industrial Lignin from Pulping and Papermaking Waste Biomass Energy

  • Wendi Zhou,
  • Dongwen Xiang,
  • Qiang Zhang,
  • Guoqing Wu,
  • Yajie Wang,
  • Dong Li,
  • Qinghua Zhang and
  • Huaxin Hu

17 February 2025

To explore the application of industrial lignin, a waste biomass resource, in the field of metallurgy, the kinetic behavior of iron ore powder reduction by Shenmu bituminous coal, Lu’an anthracite, and industrial lignin under different carbon&n...

  • Review
  • Open Access
3 Citations
4,650 Views
57 Pages

17 February 2025

With recent electronic devices relying on sub-nanometer features, the understanding of device performance requires a direct probe of the atomic arrangement. As an ideal tool for crystallographic analysis at the nanoscale, aberration-corrected transmi...

  • Review
  • Open Access
3 Citations
2,137 Views
24 Pages

Innovation in Metal Casting Processes: A Review of Metal Matrix Nanocomposites in Metal and Bimetal Castings

  • Tayyab Subhani,
  • Mohamed Ramadan,
  • Naglaa Fathy,
  • Abdel Khaliq and
  • K. S. Abdel Halim

17 February 2025

The arrival of nanotechnology in the field of metal castings is considered a promising approach to significantly improve the quality, performance and lifetime of castings. A better understanding of the implementation of nanotechnology in the metal ca...

  • Article
  • Open Access
1,411 Views
14 Pages

17 February 2025

Impurities significantly constrain the production of high-purity magnesium sulfate crystals, essential for advanced magnesium-based materials. Sodium–magnesium co-precipitation affects the crystals’ purity and surface smoothness, with NaC...

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Crystals - ISSN 2073-4352