Structural Characterization of Welded Fir, Oak, and Chestnut using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) Analysis

Öz

This work characterizes welded wood specimens by estimating the crystallinity of cellulose by x-ray diffraction (XRD) and scanning electron microscopy (SEM) to identify the morphology of the welded fir, oak, and chestnut woods. The results showed that the cellulose crystallinity index (CRI) in the XRD analysis were identified to be 57.55% , 47.73%, and 56.66% for the fir, oak, and chestnut wood specimens, respectively. The CRI of all wood samples increased after they were subjected to welding. According to the SEM analysis, the general cell structure of the wood collapsed with the high temperature and pressure used to form the welded intermediate phase while protecting itself. As a result, the cellulose crystalline value of the softwood was found to be higher compared to the high percentage of polysaccharides in the hardwoods.

Anahtar Kelimeler

• Surface characterization
• friction wood welding
• SEM
• XRD

X-ışını Kırınımı (XRD) ve Taramalı Elektron Mikroskobu (SEM) Kullanılarak Kaynaklanan Göknar, Meşe ve Kestane Odununun Yapısal Karakterizasyonu

Öz

Bu çalışma, kaynaklanmış Göknar, Meşe ve Kestane odunlarının morfolojik analizlerini tanımlamak için taramalı elektron mikroskopu ve selüloz kristanilitesini tahmin etmek için X-ışını kırınım analizi kullanılarak örnekler karakterize edilmiştir. Sonuçlar, XRD analizinde selüloz kristalinite indeksinin (CRI) göknar, meşe ve kestane ağacı örneklerinde sırasıyla% 57.55 ve % 47.73 ve% 56.66 olarak belirlendiğini göstermiştir. Tüm ahşap örneklerinin CRI değeri, kaynağa tabi tutulduktan sonra artmıştır. SEM analizine göre ahşabın genel hücre yapısı, kendini korurken kaynaklı ara fazı oluşturmak için kullanılan yüksek sıcaklık ve basınçla kırılma meydana gelmiştir. Sonuç olarak, yumuşak ağacın kristal değerinin, sert ağaçlardaki yüksek polisakkarit yüzdesine kıyasla daha yüksek olduğu bulunmuştur.

Anahtar Kelimeler

• Yüzey karakterizasyonu
• sürtünme ahşap kaynak
• taramalı elektron mikroskop
• X-ışını kırınımı

Kaynakça

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