Multifunctional SnO2-@ doped glass fiber?reinforced concrete: Improved microstructure, mechanical, dielectric, and energy storage characteristics
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study explores SnO?-based hybrid composite (SnO?-@) doped glass fiber-reinforced concrete (GFRC) for enhanced dielectric, energy storage, and mechanical performance. Microstructural analysis confirmed SnO?-@ promotes ettringite and calcium silicate hydrate (C-S-H) formation, improving matrix integrity. Aged samples exhibited a 650?% increase in surface roughness (Ra) and over 200?% higher Leeb hardness, demonstrating durability. Dielectric spectroscopy revealed frequency-dependent tunability: 1?% SnO?-@ achieved a peak dielectric constant (?' = 130 at 10?kHz), shifting to ?' =?140 at 100?kHz for 2–3?% doping. AC conductivity surged by 60?%, correlating with SnO?-@-induced interfacial polarization and charge mobility. Energy storage capacity improved significantly, attributed to optimized dipole alignment and reduced leakage currents. Color stability remained robust (?E* ? 2.8 post-aging), ensuring aesthetic viability. These results position SnO?-@-doped GFRC as a multifunctional material for smart infrastructure, integrating structural resilience, adaptive dielectric properties, and energy storage potential for next-generation urban applications.
Açıklama
Anahtar Kelimeler
Dielectric properties Energy storage Glass fiber-reinforced concrete (GFRC) SnO2- based hybrid composite (SnO2-@) Capacitor
Kaynak
Construction and Building Materials,
WoS Q Değeri
Scopus Q Değeri
Cilt
476
Sayı
141231
