Determination of dielectric properties in oriental beech (Fagus orientalis Lipsky) wood
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Bekir Cihad Bal
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Today, the wood of the oriental beech (Fagus orientalis Lipsky.) is widely used in various applications, including furniture, musical instruments, carvings, and veneer. In this study, the dielectric properties of oriental beech were investigated at AC signal frequencies of 100 Hz–1 MHz in the voltage range of 0–100 V DC, and the effects of different surface conditions on these properties were investigated. The dielectric, thermal and surface free energy behaviors of control wood (CW) and wood soaked in water for two weeks (SW) were analyzed comprehensively. Basic parameters such as specific heat capacity (Cp), real (ε′) and imaginary (ε″) dielectric constants, alternating current electrical conductivity (σac), free energy component (G/ω), dielectric loss factor (tanδ) were evaluated in detail within the scope of experimental measurements. SW samples exhibited approximately 1,000-fold higher (ε″) values and a two-to three-fold increase in (tanδ) compared to CW samples. Furthermore, (σac) increased from ~10⁻⁹ S/m in CW to ~10⁻⁴ S/m in SW, indicating a significant increase in ionic conductivity due to the higher moisture content. CV samples maintain their insulation properties by showing consistent dielectric properties across the entire frequency range. All measurements were repeated three times (n=3) and the standard deviation was found to be less than 5%. These results show that whereas dry wood retains consistent dielectric performance with low losses, moisture dramatically increases conductivity and dielectric losses. © 2025, Bekir Cihad Bal. All rights reserved.
Açıklama
Anahtar Kelimeler
AC conductivity, Dielectric properties, Frequency, Oriental beech
Kaynak
Furniture and Wooden Material Research Journal
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
8
Sayı
2
