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Crystals, Volume 13, Issue 7

July 2023 - 169 articles

Cover Story: It is crucial to gain insight into how the mechanical properties of Co-based superalloys can be optimized by understanding the impact of γ′ and secondary-phase fractions. To achieve this, a series of Co-Al-W-Ta model alloys were carefully designed, with compositions aligned along the γ/γ′ tie-line, resulting in γ′ volume fractions ranging from 0% to 70% at a temperature of 900 °C. Notably, an enhanced γ′ volume fraction consistently led to an increase in both high-temperature yield strength and creep performance. However, alloys containing higher γ′ volume fractions and additional secondary phases experienced a substantial reduction in their creep properties. View this paper
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Articles (169)

  • Review
  • Open Access
54 Citations
8,252 Views
27 Pages

24 July 2023

Half-Heusler alloys are among the most promising thermoelectric materials. In the present review, thermoelectric properties (at 300 K and 800 K) of more than 1100 compositions from more than 220 publications between 1998 and 2023 were collected and e...

  • Article
  • Open Access
4 Citations
1,859 Views
17 Pages

24 July 2023

With the development of computational thermodynamics, it is possible to design a material based on its simulated microstructure and properties before practical operations. In order to improve the surface properties of AZ91D magnesium alloy, Jmatpro w...

  • Feature Paper
  • Article
  • Open Access
17 Citations
3,478 Views
19 Pages

24 July 2023

Traditional liquid phase methods for growing single crystals are static growth methods, which include seed crystal sedimentation growth and seed crystal clamping growth using seed crystal holders. Single crystals grown via seed crystal sedimentation...

  • Review
  • Open Access
3 Citations
4,223 Views
23 Pages

Morphological Investigation of Protein Crystals by Atomic Force Microscopy

  • Silvia Maria Cristina Rotondi,
  • Giorgia Ailuno,
  • Simone Luca Mattioli,
  • Alessandra Pesce,
  • Ornella Cavalleri and
  • Paolo Canepa

24 July 2023

In this review, we discuss the progress in the investigation of macromolecular crystals obtained through the use of atomic force microscopy (AFM), a powerful tool for imaging surfaces and specimens at high resolution. AFM enables the visualization of...

  • Article
  • Open Access
8 Citations
2,677 Views
20 Pages

23 July 2023

Four of the crosslinked sodium alginate and polyacrylic acid biopolymers based nanoscale metal natural polysaccharides, [M(AG-PAA)Cl(H2O)3], where M = Co(II), Cu(II), Mn(II) and Ni(II), AG = sodium alginate and PAA = polyacrylic acid, have been synth...

  • Article
  • Open Access
6 Citations
2,234 Views
18 Pages

Negative Linear Compressibility of Formate Crystals from the Viewpoint of Quantum Electronic Pressure

  • Yury V. Matveychuk,
  • Sergey A. Sobalev,
  • Polina I. Borisova,
  • Ekaterina V. Bartashevich and
  • Vladimir G. Tsirelson

23 July 2023

In order to understand the phenomenon of negative linear compressibility (NLC) in organic crystals, it is necessary to investigate not only the structural features but also the electronic changes taking place under external hydrostatic pressure. It i...

  • Article
  • Open Access
2 Citations
2,557 Views
20 Pages

22 July 2023

This study investigates the fatigue damage evolution mechanisms of D2 wheel steel under high-cycle uniaxial and multiaxial loading conditions, with a focus on determining the fatigue crack growth threshold (FCGT). Uniaxial and multiaxial FCGT tests w...

  • Review
  • Open Access
18 Citations
5,490 Views
20 Pages

Multifunctional Polymeric Nanocomposites for Sensing Applications—Design, Features, and Technical Advancements

  • Ayesha Kausar,
  • Ishaq Ahmad,
  • Tingkai Zhao,
  • Osamah Aldaghri,
  • Khalid H. Ibnaouf and
  • M. H. Eisa

22 July 2023

Among nanocomposite materials, multifunctional polymer nanocomposites have prompted important innovations in the field of sensing technology. Polymer-based nanocomposites have been successfully utilized to design high-tech sensors. Thus, conductive,...

  • Article
  • Open Access
4 Citations
2,184 Views
11 Pages

Effects of Buffer Layer on Structural Properties of Nonpolar (112¯0)-Plane GaN Film

  • Jianguo Zhao,
  • Boyan Suo,
  • Ru Xu,
  • Tao Tao,
  • Zhe Zhuang,
  • Bin Liu,
  • Xiong Zhang and
  • Jianhua Chang

22 July 2023

Nonpolar (112¯0) a-plane GaN films were grown on semipolar (11¯02) r-plane sapphire substrates using various buffer layers within a low-pressure metal organic chemical vapor deposition system. The structural properties of nonpolar a-plane G...

  • Review
  • Open Access
13 Citations
3,660 Views
21 Pages

22 July 2023

The MAX phases exhibit outstanding combination of strength and ductility which are unique features of both metals and ceramics. The preparation of pure MAX phases has been challenging due to the thermodynamic auspiciousness of intermetallic formation...

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Crystals - ISSN 2073-4352