Special Issues

Crystals publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Graphene-Related and Graphene-Like Reinforcements in Composites: Manufacturing and Applications
edited by and Silvia Vesco
submission deadline 31 Dec 2025 | Viewed by 183 | Submission Open
Keywords: two-dimensional materials; polymer composites; metal matrix composites; coatings; particle reinforcement; green manufacturing; lightweighting; wear resistance; mechanical performances; conductivity
Metamaterials and Their Devices, Second Edition
edited by
submission deadline 10 Jan 2026 | 6 articles | Viewed by 9311 | Submission Open
Keywords: metamaterials; lattice metamaterials; crystal materials and structures; plasmonic and dielectric metamaterials; photonic crystals; phononic crystals; metasurfaces; fundamental issues; emerging fields for MMs; electromagnetic response; magnetic-resonance; electric-resonance; numerical methods; applications
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Performance and Processing of Metal Materials
edited by Zhanfeng Wang and Benilde F. O. Costa
submission deadline 10 Jan 2026 | 2 articles | Viewed by 1497 | Submission Open
Keywords: metal materials; high-performance alloys; advanced processing techniques; material behavior modeling; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in Glass-Ceramics
edited by and Janusz Partyka
submission deadline 10 Jan 2026 | 1 articles | Viewed by 1094 | Submission Open
Keywords: glass-ceramics; polycrystalline materials; crystallization of glass; nucleation and crystal growth
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Surface Modification Treatments of Metallic Materials (2nd Edition)
edited by , Zongwei Ren and
submission deadline 10 Jan 2026 | 1 articles | Viewed by 681 | Submission Open
Keywords: surface modification; surface integrity; microstructure; residual stress; surface morphology; microhardness; metallic materials; mechanical property; fatigue; high-performance manufacturing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Structure and Characterization of Enzymes
edited by
submission deadline 10 Jan 2026 | Viewed by 148 | Submission Open
Keywords: enzyme structure; biocatalysis; structure– function relationship; X-ray crystallography; artificial intelligence in structural biology
Mechanical Properties of Light Alloys
edited by Wenjie Song and
submission deadline 10 Jan 2026 | Viewed by 109 | Submission Open
Keywords: magnesium; microstructure; mechanical properties; friction stir welding; cast; plastic deformation; hydrogen storage; kinetics; titanium; aluminum; titanium alloy casting; high-performance aluminum alloy; counter-gravity casting; titanium aluminide
2D Crystalline Nanomaterials (2nd Edition)
edited by Yao Yao
submission deadline 10 Jan 2026 | Viewed by 103 | Submission Open
Keywords: 2D crystalline nanomaterial; device; electronic
Synchrotron X-Ray Techniques in the Study of Nanomaterials
edited by Lucas Atila Bernardes Marçal, Ângelo Malachias de Souza and
submission deadline 10 Jan 2026 | Viewed by 94 | Submission Open
Keywords: X-ray diffraction; crystallography; synchrotron radiation; nanomaterials; crystal dynamics; X-ray spectroscopy; nano-device characterization
Advances in Metal Matrix Composites (Second Edition)
edited by
submission deadline 15 Jan 2026 | 2 articles | Viewed by 4660 | Submission Open
Keywords: metal matrix composites; additive manufacturing; nanocarbons; spark plasma sintering; powder metallurgy; interface control; strengthening mechanism; mechanical response; functional properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Lanthanide Coordination Complexes: Advances in Ligand Design, Structure, and Luminescent Applications
edited by Nawal Al-Rasbi
submission deadline 15 Jan 2026 | Viewed by 384 | Submission Open
Keywords: lanthanide(III) coordination complexes; crystal structure; ligand’ s design; luminescence properties; light emitting diodes (LEDs); luminescent chemo-sensors; antibacterial and antimicrobial activity
(This special issue belongs to the Section Inorganic Crystalline Materials)
Alloy Materials Degradation and Microstructural Study submission deadline 15 Jan 2026 | Viewed by 215 | Submission Open
Keywords: high-temperature corrosion; material degradation; extreme environment materials; hot corrosion; molten salt corrosion; scanning electron microscopy; mechanical properties; corrosion mechanism; corrosion-resistant alloys; coatings; microstructure characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystalline Materials for Energy Storage submission deadline 15 Jan 2026 | Viewed by 52 | Submission Open
Keywords: energy storage; solid-state electrolytes; flexible and wearable storage devices; thin-film supercapacitors; integration of harvesting/storage elements
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Crystalline Nanocellulose and Its Derivatives for Sustainable Functional Materials
edited by Carlos Molina-Ramírez and
submission deadline 15 Jan 2026 | Viewed by 29 | Submission Open
Keywords: crystalline nanocellulose; cellulose nanocrystals (CNCs); cellulose nanofibrils (CNFs); circular economy; sustainable materials; nanocellulose applications; bio-based composites; structure– property relationships; biodegradable materials; functional nanomaterials
(This special issue belongs to the Section Organic Crystalline Materials)
Metal Oxide-Based Nanomaterials: Advances in Synthesis, Characterization, and Applications submission deadline 20 Jan 2026 | 2 articles | Viewed by 5063 | Submission Open
Keywords: metal-oxide-based nanomaterials; nanocrystals; synthesis techniques; characterization; environmental remediation; catalysis; biomedical applications; green synthesis; toxicity assessment; sustainability; interdisciplinary research; machine learning; innovative research; environmental monitoring; drug delivery; life cycle analysis
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advances in Nanomaterials and Nanocomposites for Catalytic Applications
edited by
submission deadline 20 Jan 2026 | 4 articles | Viewed by 4952 | Submission Open
Keywords: nanomaterials; nanocomposites; nanocatalysts; catalytic performance; pollutant degradation; energy
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Analysis of Halogen and Other σ-Hole Bonds in Crystals (2nd Edition)
edited by
submission deadline 20 Jan 2026 | 2 articles | Viewed by 2019 | Submission Open
Keywords: halogen bonding; sigma-hole bonding; electrostatic potentials; nature of noncovalent interactions
(This special issue belongs to the Section Crystal Engineering)
Synthesis, Characterization and Applications of Multi-Component Hybrid and Composite Nanostructures
edited by
submission deadline 20 Jan 2026 | 1 articles | Viewed by 841 | Submission Open
Keywords: multi-component (nano-)structures; inorganic/organic (nano-)structures; synthesis and characterization; healthcare applications
Synergizing Crystallography, Mineral Materials Science and Solid Waste Upcycling for Sustainable Materials Innovation
edited by Limei Wu, Xin Liu and
submission deadline 20 Jan 2026 | Viewed by 107 | Submission Open
Keywords: mineral crystallography; mineral materials; solid waste valorization; AI-driven material design
Microstructure Analysis, Phase Composition and Properties of Steels submission deadline 20 Jan 2026 | Viewed by 63 | Submission Open
Keywords: advanced characterization of steel microstructures (SEM; TEM; EBSD; XRD; etc.); phase transformations and kinetics in alloyed steels; relationships between microstructure and mechanical properties; heat treatment; thermomechanical processing; and surface modification; modeling and simulation of microstructural evolution; correlation of crystal structure and anisotropy with physical properties; steel behavior under extreme environments (e.g.; cryogenic; high temperature; corrosive); novel alloying concepts and high-performance steel grades (e.g.; AHSS; TRIP; TWIP; maraging)
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research and Applications of TiO2 Nanotube Layers submission deadline 21 Jan 2026 | Viewed by 142 | Submission Open
Keywords: TiO2 nanotube layers; upscaling; bipolar electrochemistry; anodization; photocatalysis; biomedical devices; environmental remediation; energy storage
Ceramic Materials: Structural, Mechanical and Dielectric Properties
edited by and
submission deadline 25 Jan 2026 | Viewed by 218 | Submission Open
Keywords: dielectric materials; functional ceramics; complex oxides; ferroelectric materials; non-Debye relaxation; solid-state synthesis; sol– gel synthesis; structural characterization (XRD; SEM; Raman; XPS); composition– structure– property relationships; energy storage; microwave devices; flexible electronics; materials for communication systems; multifunctional composites; impedance analyzer; crystallographic; microstructural; optical properties
(This special issue belongs to the Section Polycrystalline Ceramics)
Mechanical Properties of Microcrystalline Glass
edited by
submission deadline 10 Feb 2026 | 1 articles | Viewed by 2002 | Submission Open
Keywords: mechanical properties; crystalline glass; glass; glass-ceramic; hardness; crack resistance; fracture toughness; X-ray diffraction; optical properties; theoretical models
Research Progress of Crystalline Metamaterials submission deadline 10 Feb 2026 | 2 articles | Viewed by 1982 | Submission Open
Keywords: metamaterials; coding metamaterial; metadevices; cloaking; radar cross-section reduction; electromagnetic absorbtion reduction; imaging; sensing
(This special issue belongs to the Section Inorganic Crystalline Materials)
Density Functional Theory (DFT) in Crystalline Material
edited by , Rodrigo Gester and Mateus Ribeiro Lage
submission deadline 10 Feb 2026 | 1 articles | Viewed by 1048 | Submission Open
Keywords: density functional theory; crystalline materials; electronic structure; defects; phase stability; mechanical properties; surface science; high-throughput screening; machine learning; computational material science
Superconductivity and Condensed Matter Physics
edited by Byungkyun Kang
submission deadline 10 Feb 2026 | 1 articles | Viewed by 954 | Submission Open
Keywords: superconductors  ; high-temperature superconductivity; low-dimensional crystals; hydrides; spin-triplet superconductor; nanostructure; magnetism  ; topological quantum
(This special issue belongs to the Section Inorganic Crystalline Materials)
Mechanical Properties and Structure of Metal Materials
edited by Xiang Li, Wei Zhang and
submission deadline 10 Feb 2026 | 1 articles | Viewed by 679 | Submission Open
Keywords: metal; metal-based metamaterials; architected metamaterials; microstructure; pores; honeycomb materials; lattice materials; truss materials; sandwich structure; cellular materials; mechanical property; structural design; application
(This special issue belongs to the Section Crystalline Metals and Alloys)
Mechanical Properties and Friction Behavior of Metal Alloys and Their Composites
edited by Jingwen Qiu
submission deadline 10 Feb 2026 | 1 articles | Viewed by 639 | Submission Open
Keywords: mechanical properties; friction and wear; lubrication; steel; aluminum alloy; titanium alloy; magnesium alloy; high-entropy alloy; composites; EBSD; TEM; APT
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystallization Processes and Simulation Calculations, Fourth Edition
edited by , and Mingxuan Li
submission deadline 10 Feb 2026 | Viewed by 165 | Submission Open
Keywords: process analytical technology; process intensification; AI-enhanced crystallization; machine learning; multi-objective optimization; molecular dynamics simulation; hydrodynamics simulation
(This special issue belongs to the Section Industrial Crystallization)
Properties and Synthesis of Luminescent Materials submission deadline 10 Feb 2026 | Viewed by 118 | Submission Open
Keywords: luminescent materials; lanthanide doping; transition metal doping; synthesis; structure– property correlations; optical properties; luminescence thermometry; fluorescence sensors; photocatalysis; defects
(This special issue belongs to the Section Materials for Energy Applications)
Synthesis and Structure of Nanocomposites
edited by and Zahra Heydari
submission deadline 10 Feb 2026 | Viewed by 104 | Submission Open
Keywords: nanocomposites; synthesis methods; nanofillers; advanced characterization; nanomaterials engineering
Advances in Self-Assembled Luminescent Materials
edited by Gong Zhang, and Jianrong Qiu
submission deadline 10 Feb 2026 | Viewed by 87 | Submission Open
Keywords: supramolecular polymers; supramolecular assembly; circularly polarized luminescence; chiral self-assembly; crystal structure; optoelectronic properties; aggregation-induced emission
Perovskites: Crystal Structure, Properties and Applications submission deadline 10 Feb 2026 | Viewed by 85 | Submission Open
Keywords: perovskite materials; crystal structure; material characterization; energy applications; nanotechnology; computational modeling
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Zr-Based Alloys (2nd Edition)
edited by Quan Dong and
submission deadline 10 Feb 2026 | Viewed by 79 | Submission Open
Keywords: microstructure; corrosion resistance; irradiation resistance; strengthening and toughening; mechanical properties; simulation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystallization of High-Performance Metallic Materials (3rd Edition)
edited by
submission deadline 10 Feb 2026 | Viewed by 74 | Submission Open
Keywords: solidification of steel and alloys; casting process; solid phase transformation; high-performance metallic materials; in situ characterization; nucleation and growth in metals; inclusion/precipitate engineering in steel and alloys; slag and flux engineering; thermodynamics and kinetics of crystallization; process– structure– property correlation in alloys
(This special issue belongs to the Section Crystalline Metals and Alloys)
Microstructure Characterization and Design of Advanced Alloys submission deadline 10 Feb 2026 | Viewed by 70 | Submission Open
Keywords: advanced alloys; microstructure characterization; property optimization; multi-scale analysis; computational modeling
(This special issue belongs to the Section Crystalline Metals and Alloys)
Emerging Trends in Functional Oxide Ceramics
edited by Victor E. Álvarez-Montaño, and Subhash Sharma
submission deadline 17 Feb 2026 | Viewed by 63 | Submission Open
Keywords: functional oxide ceramics; high-entropy ceramics; crystal structure; solid-state synthesis; phase stability; dielectric properties; phase diagrams; complex oxides; structure– property relationships
(This special issue belongs to the Section Polycrystalline Ceramics)
Simulation on Casting and Solidification Process of Crystalline Metals and Alloys submission deadline 25 Feb 2026 | Viewed by 66 | Submission Open
Keywords: casting simulation; solidification modeling; crystalline metals and alloys; microstructure evolution; grain structure prediction; thermal and fluid flow analysis; phase transformation; numerical methods in metallurgy; defect prediction in casting
(This special issue belongs to the Section Crystalline Metals and Alloys)
Machine Learning for Material and Process Optimization in Additive Manufacturing submission deadline 26 Feb 2026 | 1 articles | Viewed by 672 | Submission Open
Keywords: machine learning; additive manufacturing; process optimization; material design; artificial intelligence; material development; digital twins; process control; data-driven modeling; advanced manufacturing; sustainable manufacturing
Advances in Functional Materials for Lithium Secondary Battery System: Challenge, Opportunities, Solutions and Applications
edited by Jingzheng Weng, Minquan Tian and
submission deadline 28 Feb 2026 | Viewed by 129 | Submission Open
Keywords: functional materials; crystalline materials; polymer conductors; energy materials; electrode materials; solid electrolytes; high-voltage functional materials; lithium battery; next-generation post-lithium battery systems
(This special issue belongs to the Section Materials for Energy Applications)
Microstructure and Mechanical Behavior of Advanced High Strength Steels
edited by Mattia Franceschi
submission deadline 28 Feb 2026 | Viewed by 104 | Submission Open
Keywords: AHSS; quench and partitioning; carbide free bainite; medium manganese steel; TRIP; austenite; bainitic transformation; tensile properties; fatigue; heat treatment
Microstructure Characterization and Design of Alloys, 2nd Edition
edited by , Arnoldo Bedolla-Jacuiende, Jacinto Cortéz Pérez and
submission deadline 28 Feb 2026 | Viewed by 94 | Submission Open
Keywords: microstructural analysis; mechanical properties; tribological behavior of ferrous and non-ferrous alloys
(This special issue belongs to the Section Crystalline Metals and Alloys)
Microstructure and Deformation of Advanced Alloys (2nd Edition) submission deadline 28 Feb 2026 | Viewed by 59 | Submission Open
Keywords: metals and alloys; defects; texture; microstructure; deformation; aging; properties; hot-working; cold-working
(This special issue belongs to the Section Crystalline Metals and Alloys)
Synthesis, Crystal Structures and Hirshfeld Surface Analysis of Coordination Compounds (3rd Edition) submission deadline 10 Mar 2026 | 3 articles | Viewed by 5686 | Submission Open
Keywords: coordination complexes  ; synthesis  ; crystal and molecular structure  ; hirschfeld surface analysis; non-covalent interactions
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advanced Research on Microstructure Evolution in Crystalline Materials
edited by Andreas Prahs and
submission deadline 10 Mar 2026 | Viewed by 118 | Submission Open
Keywords: microstructure evolution; theoretical modeling; computational simulation; nucleation mechanisms; morphological evolution  
Recent Advances in Microstructure and Properties of Metals and Alloys (2nd Edition) submission deadline 10 Mar 2026 | Viewed by 99 | Submission Open
Keywords: microstructure characterization; phase transformations; material properties; mechanical properties; corrosion resistance; manufacturing technology
Processing–Structure–Property Relationships in Next-Generation Titanium Alloys
edited by Maria Ntsoaki Mathabathe and Amogelang Sylvester Bolokang
submission deadline 10 Mar 2026 | Viewed by 74 | Submission Open
Keywords: titanium alloys; microstructural evolution; phase transformations; metastable β -titanium alloys; high-entropy Ti-based alloys; additive manufacturing; powder metallurgy; mechanical properties; corrosion resistance; fatigue and creep behaviour; biomedical applications; hydrogen storage; advanced characterization; computational thermodynamics; sustainable processing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Non-Fourier Thermal Wave Crystals: Fundamentals, Modeling, and Applications
edited by Jesus Manzanares-Martinez
submission deadline 10 Mar 2026 | Viewed by 47 | Submission Open
Keywords: thermal wave crystals; hyperbolic heat conduction; Bloch/Floquet analysis; thermal band gaps; nanoscale heat transfer; phonon hydrodynamics; layered composites; wave-based thermal management
(This special issue belongs to the Section Inorganic Crystalline Materials)
Ceramic Matrix Composites for High Temperature Applications
edited by Dustin Gilmer and
submission deadline 10 Mar 2026 | Viewed by 44 | Submission Open
Keywords: ceramic matrix composite; high temperature; oxidation; advanced manufacturing; compositionally complex ceramics; ultra-high temperature ceramics; fiber reinforced composite
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Innovations in Catalytic Materials and Advanced Crystal Engineering
edited by Zhi Gao and
submission deadline 10 Mar 2026 | Viewed by 37 | Submission Open
Keywords: catalytic materials; advanced crystal engineering; crystal structure design; catalytic performance; sustainable technology innovation
(This special issue belongs to the Section Crystal Engineering)
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