Synergizing Crystallography, Mineral Materials Science and Solid Waste Upcycling for Sustainable Materials Innovation

A special issue of Crystals (ISSN 2073-4352).

Deadline for manuscript submissions: 20 January 2026 | Viewed by 422

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China
Interests: low dimensional materials; condensed matter physics; material science; atomic and molecular nanostructures; spintronics and magnetronics

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Guest Editor
School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
Interests: mineral materials; computational materials science; environmental materials; catalytic materials

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Guest Editor
School of Gemology, China University of Geosciences, Beijing 100083, China
Interests: luminescence materials; crystal structure; gemology
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Special Issue Information

Dear Colleagues,

Crystals, characterized by their highly ordered atomic structures, serve as foundational units for deciphering the properties and applications of materials. In mineralogy, crystallographic analysis remains indispensable for mineral identification and classification, as well as the elucidation of formation mechanisms, stability fields, and structure–property relationships. Beyond natural mineral systems, rationally designed crystalline materials, including zeolites, perovskites, metal–organic frameworks (MOFs), and their derivatives, are redefining frontiers in functional materials science, enabling breakthroughs in catalysis, renewable energy technologies, and environmental applications such as carbon capture and pollutant sequestration. Particularly, integrating artificial intelligence with crystal structure prediction and design can accelerate the R&D cycle, reduce trial-and-error costs, and significantly expedite the development of novel crystal materials. Equally transformative is the role of crystalline phases in sustainable waste management. Industrial byproducts (e.g., metallurgical slags, fly ash, and construction residues) are increasingly recognized as secondary resource reservoirs. By transforming waste into valuable crystalline materials, we can reduce environmental impacts and promote circular economy principles. This Special Issue explores the synergistic convergence of crystallography, mineral materials science, and solid waste valorization. We welcome contributions that highlight the potential of crystals to drive technological and environmental progress, leading to a paradigm shift in materials innovation and waste-to-resource transitions

Prof. Dr. Limei Wu
Dr. Xin Liu
Dr. Qingfeng Guo
Guest Editors

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Keywords

  • mineral crystallography
  • mineral materials
  • solid waste valorization
  • AI-driven material design

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Published Papers (1 paper)

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Research

15 pages, 5335 KB  
Article
Autoclave Expansion and Compressive Strength of MgO-Admixed RCC with Partial Fly Ash Replacement by Phosphorus Slag
by Rongfei Chen and Changli Chen
Crystals 2025, 15(12), 1048; https://doi.org/10.3390/cryst15121048 - 11 Dec 2025
Viewed by 187
Abstract
High-volume fly ash (FA) mitigates the expansion of magnesium oxide (MgO), and the uneven regional distributions of high-quality FA collectively limit the application of roller-compacted concrete admixed with MgO (M-RCC). This study evaluated the autoclave expansion and compressive strength of MgO-admixed cement paste [...] Read more.
High-volume fly ash (FA) mitigates the expansion of magnesium oxide (MgO), and the uneven regional distributions of high-quality FA collectively limit the application of roller-compacted concrete admixed with MgO (M-RCC). This study evaluated the autoclave expansion and compressive strength of MgO-admixed cement paste and mortar, wherein phosphorus slag (PS) was used to partially or fully replace FA. The expansion mechanism within the MgO-FA-PS system was explored. Results show that the autoclave expansion of the mortar increased as the proportion of PS replacing FA rose. At a replacement ratio of 33% (i.e., 20% of the total mass of cementitious materials), the mortar maintained the same ultimate MgO dosage (8%) as the control specimen, yet exhibited a 12.7% increase in expansion and an 8.8% decrease in strength. The mechanism is that PS is less efficient than FA in reducing the pore solution alkalinity, thereby promoting the formation of more brucite. The growth pressure of brucite crystals expands the internal gaps in the matrix and coarsens the pore size, resulting in greater expansion and reduced compressive strength. The results of this study can provide theoretical and technical insights for the application of PS in M-RCC. Full article
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