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Crystals, Volume 12, Issue 7

July 2022 - 137 articles

Cover Story: AA 6086 is a wrought Al-Mg-Si alloy with a tensile strength and elongation exceeding 480 MPa and 10%, respectively. The additions of 0.2 and 1 wt.% Sc strongly reduced the grain size and induced the appearance of the Sc-rich phases AlSc2Si2 and L12-Al3X. Most primary phases dissolved, and different dispersoids formed during homogenization. The distribution of dispersoids was not uniform in the alloy with 0.2% Sc. The large plate-like α-AlMnSi dispersoids and spherical L12 precipitates formed at dendrite centres, while smaller α-AlMnSi and tetragonal t-Al3Zr dispersoids were created elsewhere. The precipitation was slightly delayed during isothermal ageing and shifted to higher temperatures during continuous heating. Scandium did not considerably affect the hardness of the investigated alloy. View this paper
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Articles (137)

  • Article
  • Open Access
5 Citations
2,298 Views
12 Pages

Alkali−Silica Activity and Inhibition Measures of Concrete Aggregate in Northwest China

  • Jing Wen,
  • Jinmei Dong,
  • Chenggong Chang,
  • Xueying Xiao and
  • Weixin Zheng

21 July 2022

The alkali−silica reaction (ASR)-induced expansion of mortar bars containing four types of aggregates originating from different regions in northwest China was studied. The chemical composition, mineral composition, vitreous and amorphous subst...

  • Article
  • Open Access
2 Citations
2,635 Views
12 Pages

Solution-Mediated Polymorphic Transformation of L-Carnosine from Form II to Form I

  • Yanan Zhou,
  • Shuyi Zong,
  • Jie Gao,
  • Chunsong Liu and
  • Ting Wang

21 July 2022

In this study, L-carnosine was chosen as the model compound to systematically study solution-mediated polymorphic transformation by online experiment and theoretical simulation. Form II, a new polymorph of L-carnosine, was developed using an antisolv...

  • Review
  • Open Access
15 Citations
6,969 Views
28 Pages

Principles of Selective Area Epitaxy and Applications in III–V Semiconductor Lasers Using MOCVD: A Review

  • Bin Wang,
  • Yugang Zeng,
  • Yue Song,
  • Ye Wang,
  • Lei Liang,
  • Li Qin,
  • Jianwei Zhang,
  • Peng Jia,
  • Yuxin Lei and
  • Cheng Qiu
  • + 2 authors

21 July 2022

Selective area epitaxy (SAE) using metal–organic chemical vapor deposition (MOCVD) is a crucial fabrication technique for lasers and photonic integrated circuits (PICs). A low-cost, reproducible, and simple process for the mass production of se...

  • Article
  • Open Access
9 Citations
2,787 Views
20 Pages

Biosynthesis of Silver Nanoparticles Using Bersama engleriana Fruits Extracts and Their Potential Inhibitory Effect on Resistant Bacteria

  • Michele Stella Majoumouo,
  • Marius Belmondo Tincho,
  • Youmbi Diane Yimta,
  • Tayo Alex Adekiya,
  • Raphael Taiwo Aruleba,
  • Nimibofa Ayawei,
  • Fabrice Fekam Boyom and
  • Thureyah Morris

21 July 2022

The absence of novel, safe, and effective bactericide is an urgent concern worldwide and remains a challenge in scientific communities. The unique proprieties of silver nanoparticles (SNPs) synthesized from plant extracts make them a suitable candida...

  • Article
  • Open Access
1 Citations
1,985 Views
10 Pages

Effects of Pre-Annealing on the Radiation Resistance of ZnO Nanorods

  • Tengfei Wu,
  • Aiji Wang,
  • Mingyu Wang,
  • Yinshu Wang,
  • Zilin Liu,
  • Yiwen Hu,
  • Zhenglong Wu and
  • Guangfu Wang

21 July 2022

Ion implantation is usually used for semiconductor doping and isolation, which creates defects in semiconductors. ZnO is a promising semiconductor and has a variety of applications, such as for use in transparent electronics, optoelectronics, chemica...

  • Review
  • Open Access
47 Citations
6,666 Views
18 Pages

Review of Radiation-Induced Effects on β-Ga2O3 Materials and Devices

  • Nethala Manikanthababu,
  • Hardhyan Sheoran,
  • Pradeep Siddham and
  • Rajendra Singh

21 July 2022

β-Ga2O3 has become an ultimate choice of emerging new-generation material for its wide range of compelling applications in power electronics. In this review, we have explored the available radiations in the atmosphere and the effects of radiatio...

  • Article
  • Open Access
2 Citations
2,165 Views
8 Pages

21 July 2022

An ordered ω-Al4Cr phase synthesized recently by a high-pressure sintering (HPS) approach was calculated to be stable by density function theory (DFT), implying that high pressure can accelerate the disorder-order phase transitions. The structu...

  • Review
  • Open Access
14 Citations
5,411 Views
21 Pages

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

  • Shen Niu,
  • Yue Song,
  • Ligong Zhang,
  • Yongyi Chen,
  • Lei Liang,
  • Ye Wang,
  • Li Qin,
  • Peng Jia,
  • Cheng Qiu and
  • Yuxin Lei
  • + 3 authors

21 July 2022

Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices in PICs is the distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength semiconductor l...

  • Article
  • Open Access
5 Citations
2,343 Views
15 Pages

Influence of Organic-Modified Inorganic Matrices on the Optical Properties of Palygorskite–Curcumin-Type Hybrid Materials

  • Florentina Monica Raduly,
  • Valentin Rădițoiu,
  • Radu Claudiu Fierăscu,
  • Alina Rădițoiu,
  • Cristian Andi Nicolae and
  • Violeta Purcar

20 July 2022

Clays are very important from an economic and application point of view, as they are suitable hosts for organic compounds. In order to diversify the fields of application, they are structurally modified by physical or chemical methods with cationic s...

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Crystals - ISSN 2073-4352Creative Common CC BY license