Mechanical Properties of Soda-Lime-Silica Glasses with Variable Peanut Shell Contents

Abstract

In this study, the mechanical properties of soda-lime-silica glasses were investigated by using micro-Vickers indentation tests, while varying the amount of peanut shell powder added to the glass. Peanut shell powder was obtained by grinding peanut shells. It was added as a dopant to glass at 0.5-5 wt.%, with the final glass samples being produced by melting. Peanut shell addition had led to a decreased density of the soda-lime-silica glasses, and X-ray diffraction data of the peanut shell-doped soda-lime-silica glasses indicated the presence of two crystalline phases, namely, anorthite (Na0.45(Ca0.55Al1.55Si2.45O8) and magnesium aluminum silicate (MgAl2Si3O10)6. The Young's modulus values of the soda-lime-silica glasses increased along with the amount of peanut shell powder added. Peanut shell addition to the soda-lime-silica glasses has also caused increased hardness. Fracture toughness values of these glass samples were in the range of 0.91-1.04 MPa m 1/2 . Thus, the mechanical properties (e.g. E and KC) of soda-lime-silica glasses could be enhanced through peanut shell addition.

Mechanical Properties of Soda-Lime-Silica Glasses Doped with Eggshell Powder

“…the ES powder, increased up to 1 wt%. Higher dopant amounts resulted in a decrease in the fracture toughness of the SLS glasses, which could be the result of an increase in the strength of Si-O-Si bonds with CaO, due to an increase in the polymerization degree of the glass network [6]. Therefore, SLS glass samples with high CaO contents (3-5 wt%) are prone to cracks that can easily propagate due to the formation of a greater number of bonds between the modifying cations and nonbridging oxygen.…”

Mixed modifier effect in Na2O·K2O·CaO aluminosilicate glasses: Pairwise and ternary interactions

“…While the governing factor is still unclear, the hypothesis is that when CaO is added to the glass, it acts as a stabilizer and increases the degree of connectivity in the glass network compared with Na 2 O. The results from Aktas 28 show evidence that SiOSi covalent bonds constitute stronger bonds with CaO in glass, and the stronger bond increases hardness. In this case, when we consider the K 2 O·CaO glass, CaO still acts as a stabilizer in glass, but due to the much greater radius of K + comparing with Na + , the increase degree of polymerization is not as much as in Na 2 O·CaO, and this effect is overcome by the shear flow effect and exhibited a slightly negative deviation.…”

Mechanical Properties of Natural Obsidian Glasses Doped with Cerium Oxide

“…Obsidyen cam örneklerine CeO2 ağırlıkça %0, 0.5, 1, 5 ve 10 oranlarında ilave edilerek cam kompozisyonları hazırlandı [14][15][16][17]. Cam örneklerin üretimi geleneksel ergitme ve hızlı soğutma yöntemiyle gerçekleştirildi.…”

“…Glass compositions were prepared by adding 0, 0.5, 1, 5 and 10 wt.% CeO2 to obsidian glass samples [14][15][16][17]. Production of glass samples was carried out by conventional melting and rapid cooling method.…”