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Ceramics, Volume 6, Issue 4

December 2023 - 30 articles

Cover Story: This study highlights the effect of rare-earth ion doping on the magnetic and magnetocaloric properties of the ferrimagnetic garnet compound Gd1-xRExFe5O12 (RE = Nd, Sm, Dy, and Y). The rare-earth ion substitution resulted in site-to-site bond lengths and bond angle alterations, thereby influencing the magnetic exchange interaction among site ions. The variation in maximum magnetic entropy change (−∆SMmax) was enhanced via Dy3+ and Sm3+ substitution but decreased with Nd3+ and Y3+ substitution. A first-principal density function theory (DFT) technique was used to shed light on the observed magnetic behavior of the substituted compound. The study shows that the magnetic moments of the doped rare-earth ions play a vital role in tuning the magnetocaloric properties of the garnet compound. View this paper
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Articles (30)

  • Article
  • Open Access
2 Citations
2,047 Views
13 Pages

15 December 2023

The study examines the influence of variations in the compositions of components for the production of lithium-containing ceramics based on lithium metazirconate obtained by the method of mechanochemical grinding and subsequent thermal sintering. For...

  • Communication
  • Open Access
2 Citations
2,055 Views
8 Pages

15 December 2023

We investigated the effects of Co doping on Pr0.7Ca0.3MnO3−d in the perspective of an oxygen-bonding state change. In all compositions, Pr0.7Ca0.3Mn1−xCoxO3−d (PCMCx, x = 0, 0.1, 0.2, 0.3) showed an orthorhombic structure, and the l...

  • Article
  • Open Access
3 Citations
2,744 Views
19 Pages

Assessing the Effects of Refuse-Derived Fuel (RDF) Incorporation on the Extrusion and Drying Behavior of Brick Mixtures

  • Ioannis Makrygiannis,
  • Athena Tsetsekou,
  • Orestis Papastratis and
  • Konstantinos Karalis

14 December 2023

This study explores the potential benefits of incorporating Recycled Demolition Waste (RDF) as an additive in ceramic mass for the brick industry, with a focus on applications such as thermoblocks. The research underscores the significance of sustain...

  • Article
  • Open Access
6 Citations
3,602 Views
15 Pages

Optimizing the Fly Ash/Activator Ratio for a Fly Ash-Based Geopolymer through a Study of Microstructure, Thermal Stability, and Electrical Properties

  • Meenakshi Yadav,
  • Lalit Kumar,
  • Vikas Yadav,
  • Karthikeyan Jagannathan,
  • Vidya Nand Singh,
  • Surinder P. Singh and
  • V. Ezhilselvi

12 December 2023

Fly ash (FA)-based geopolymer was prepared using sodium hydroxide and sodium silicate (in 2.5ratio) as an alkali activator liquid (AL). The condition of FA/AL was optimized for achieving 1.00, 1.25, 1.5, and 1.75 ratios by varying the alkali concentr...

  • Article
  • Open Access
1 Citations
2,850 Views
19 Pages

Investigation of Porous Ceramic Structures Based on Hydroxyapatite and Wollastonite with Potential Applications in the Field of Tissue Engineering

  • Andreia Cucuruz,
  • Cristina-Daniela Ghițulică,
  • Georgeta Voicu,
  • Cătălina-Alexandra Bogdan,
  • Vasilica Dochiu and
  • Roxana Cristina Popescu

8 December 2023

Bioceramics are the most promising materials used for hard tissue reconstruction. In this study, wollastonite/hydroxyapatite (HAp/WS)-type composite ceramic structures were synthesized with the aim of reaching a material with improved properties for...

  • Article
  • Open Access
4 Citations
4,403 Views
13 Pages

Analysis of the Structure and Durability of Refractory Castables Impregnated with Sodium Silicate Glass

  • Jurgita Malaiškienė,
  • Valentin Antonovič,
  • Renata Boris,
  • Andrius Kudžma and
  • Rimvydas Stonys

4 December 2023

This study examines the impact of the impregnation of fireclay-based conventional (CC) and medium-cement castables (MCCs) with liquid sodium silicate glass under vacuum conditions. The goal is to assess how this treatment affects the physical and mec...

  • Article
  • Open Access
2,602 Views
13 Pages

3 December 2023

Selective emission of green light phosphor powder Y4SiAlO8N as the host material and Tb3+ as the activator was successfully achieved using spray pyrolysis (SP). Samples synthesized with various calcination temperatures and precursor concentrations in...

  • Article
  • Open Access
4 Citations
2,692 Views
12 Pages

Features of Structures and Ionic Conductivity of Na3Fe2(PO4)3 Polycrystals Obtained by Solid Phase and Melt Methods

  • A. S. Nogai,
  • A. A. Nogai,
  • D. E. Uskenbaev,
  • A. B. Utegulov,
  • E. A. Nogai and
  • D. D. Toleugulov

29 November 2023

This article investigates the structures and conductive properties of polycrystals of Na3Fe2(PO4)3 obtained by solid-state and melt synthesis methods using concentrated optical radiation. It has been established that in the melt synthesis method, the...

  • Article
  • Open Access
4 Citations
3,160 Views
13 Pages

Hydroxyapatite-Resin Composites Produced by Vat Photopolymerization and Post-Processing via In Situ Hydrolysis of Alpha Tricalcium Phosphate

  • Carolina Oliver-Urrutia,
  • Lenka Drotárová,
  • Sebastián Gascón-Pérez,
  • Karel Slámečka,
  • Simona Ravaszová,
  • Ladislav Čelko and
  • Edgar B. Montufar

24 November 2023

Vat photopolymerization is an additive manufacturing technique that utilizes photosensitive resins to fabricate 3D polymeric objects with high precision. However, these objects often lack mechanical strength. This study investigated the strengthening...

  • Article
  • Open Access
2 Citations
2,776 Views
13 Pages

Inorganic Green Pigments Based on LaSr2AlO5

  • Kazuki Yamaguchi,
  • Akari Takemura,
  • Saki Furumoto,
  • Ryohei Oka and
  • Toshiyuki Masui

22 November 2023

La1.03Sr1.97Al0.97M0.03O5 (M = Fe, Co, Ni, and Cu) samples were synthesized using a citrate sol–gel method to develop a novel environmentally friendly inorganic green pigment. Among them, the Co-doped sample exhibited a vivid yellow, but not gr...

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Ceramics - ISSN 2571-6131