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Crystals, Volume 14, Issue 6

June 2024 - 97 articles

Cover Story: Enantiomerically pure organic substances can only crystallize in Sohncke-type space groups, i.e., without handedness inverting symmetry operations. The current article corrects a crystal structure from the literature that was erroneously determined in a centrosymmetric space group, resulting in severe disorder between the (R,R) and the (S,S) configuration. In the correct non-centrosymmetric space group P1, the structure is well ordered, and the R-values are significantly improved. Indeed, only the (R,R) configuration is present, and the (S,S) configuration is absent. View this paper
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Articles (97)

  • Article
  • Open Access
1,457 Views
11 Pages

20 June 2024

Brazing is a joining process that involves melting a filler metal and flowing it into the joint between two closely fitting parts. While brazing is primarily used for joining metals, it can also be adapted for certain coating deposition applications....

  • Article
  • Open Access
4 Citations
2,111 Views
14 Pages

An Effect of Boric Acid on the Structure and Luminescence of Yttrium Orthoborates Doped with Europium Synthesized by Two Different Routines

  • Irena P. Kostova,
  • Tinko A. Eftimov,
  • Katya Hristova,
  • Stefka Nachkova,
  • Slava Tsoneva and
  • Alexandar Peltekov

20 June 2024

In this paper, we present the characteristics of photoluminescent YBO3 successfully synthesized through a solid-state reaction and a microwave-assisted method. We used yttrium oxide and boric acid in excess as the starting reagents. The synthesis con...

  • Article
  • Open Access
4 Citations
1,884 Views
13 Pages

Tuning Fe2Ti Distribution to Enhance Extrinsic Magnetic Properties of SmFe12-Based Magnets

  • Jinbo Wei,
  • Shuainan Xu,
  • Chengyuan Xu,
  • Xiaolian Liu,
  • Yu Pan,
  • Wei Wang,
  • Yue Wu,
  • Ping Chen,
  • Jun Liu and
  • Lizhong Zhao
  • + 1 author

20 June 2024

The ThMn12-type SmFe12-based rare-earth permanent magnet has attracted widespread attention due to its excellent intrinsic magnetic properties and high-temperature stability. However, the challenge in realizing continuous non-magnetic or weakly magne...

  • Article
  • Open Access
3 Citations
2,730 Views
18 Pages

Mechanical Properties of Ti Grade 2 Manufactured Using Laser Beam Powder Bed Fusion (PBF-LB) with Checkerboard Laser Scanning and In Situ Oxygen Strengthening

  • Bartlomiej Adam Wysocki,
  • Agnieszka Chmielewska-Wysocka,
  • Piotr Maj,
  • Rafał Maksymilian Molak,
  • Barbara Romelczyk-Baishya,
  • Łukasz Żrodowski,
  • Michał Ziętala,
  • Wojciech Nowak,
  • Wojciech Święszkowski and
  • Marek Muzyk

20 June 2024

Additive manufacturing (AM) technologies have advanced from rapid prototyping to becoming viable manufacturing solutions, offering users both design flexibility and mechanical properties that meet ISO/ASTM standards. Powder bed fusion using a laser b...

  • Article
  • Open Access
4 Citations
2,074 Views
12 Pages

Printing Direction Effects on the Sliding Contact Response of a Binder Jetting 3D-Printed WC-Co Hardmetal

  • Laura Cabezas,
  • Christian Berger,
  • Emilio Jiménez-Piqué,
  • Johannes Pötschke and
  • Luis Llanes

20 June 2024

Binder jetting additive manufacturing offers a promising route to produce complex geometries in cemented carbides (WC-Co), but it may introduce direction-dependent microstructural variations potentially affecting wear resistance. This study investiga...

  • Article
  • Open Access
5 Citations
1,861 Views
13 Pages

20 June 2024

PDLC films, synthesized via polymerization-induced phase separation (PIPS) utilizing both temperature and UV monochromatic radiation, were derived from a blend of E7 nematic liquid crystal (LC) and PolyEGDMA875 (polyethyleneglycoldimethacrylate) olig...

  • Article
  • Open Access
2 Citations
2,524 Views
15 Pages

20 June 2024

Three novel binary barium arsenides, Ba3As4, Ba5As4, and Ba16As11, were synthesized and their crystal and electronic structures were investigated. Structural data collected via the single-crystal X-ray diffraction method indicate that the anionic sub...

  • Article
  • Open Access
1,546 Views
18 Pages

20 June 2024

In the present work, the evolution of the microstructure in additively manufactured 17-4PH stainless steel, which was subjected to laser surface alloying with amorphous boron and nitrogen at the varying process parameters, was studied. The main aim w...

  • Article
  • Open Access
1 Citations
2,049 Views
11 Pages

19 June 2024

Tröger’s base analogs (TBAs) and their derivatives are versatile, Λ-shaped, tetracyclic chiral building blocks utilized in numerous fields of research. Although various methods for the enantiopurification of TBAs have been demonstra...

  • Communication
  • Open Access
5 Citations
2,481 Views
16 Pages

Metal Ion Microwave-Assisted Depolymerization of Poly(Ethylene Terephthalate): A Zinc Salts-Based Deep Eutectic Solvent as Case Study

  • Cosimo Ricci,
  • Lorenzo Gontrani,
  • Elvira Maria Bauer,
  • Giorgia Ciufolini,
  • Angelo Lembo,
  • Lorenzo Casoli and
  • Marilena Carbone

19 June 2024

In this study, a new and very quick method to depolymerize PET plastics is reported. The depolymerization experiments were conducted using a type-IV deep eutectic solvent containing ZnCl2 and urea, and a microwave oven as reactor. Different combinati...

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Crystals - ISSN 2073-4352