Glass and Glass-Ceramics Produced from Fly Ash and Boron Waste

Abstract

In the current study, the e ect of boron waste addition on some properties of y ash based glass and glass--ceramics were investigated. The powder compositions including 10, 30, and 50 wt% boron waste was prepared. All the investigated compositions were melted at 1500 • C by using electrical furnaces. Melting structures were cast into the graphite mold. Thus, y ash-boron waste based glass materials were produced. To transform the glass--ceramic, crystallization process was performed. Crystallization and glass-transition temperatures were determined by di erential thermal analysis. Highly dense and crystalline materials, predominantly composed of diopside and augite together with tincalconite and residual glassy phase, were detected by X-ray di raction analysis after heat treatment at 800, 900, and 1000 • C for 1 h. For the glass and glass-ceramic samples, mechanical tests such as hardness and fracture toughness were realized. A boron waste addition has a positive e ect on the hardness of the specimens unlike the fracture toughness results. Furthermore, produced glass-ceramic materials were characterized via scanning electron microscopy.

Development and Characterization of Glass-Ceramics from Combinations of Slag, Fly Ash, and Glass Cullet without Adding Nucleating Agents

“…This phase (gehlenite) is a common component of ceramic materials used in construction and for kitchen utensils [45]. In general, four crystalline phases, diopside, anorthite, enstatite, and gehlenite, have been identified in different studies related to the preparation of glass-ceramic materials from industrial waste raw materials: These have been considered for applications in technology, electronics, and construction [46,47,48].…”

Bor İçeri̇kli̇ Atik Ki̇lleri̇n Sondaj Çamurlarinda Kullanimi

“…Bu atıklar toprağa atıldığında, bor bileşikleri yağmur etkisinden dolayı toprak kirliliği başta olmak üzere çevresel sorunlara neden olmaktadır. Dolayısı ile bor üretim tesislerinde kirlilik sorununu azaltabilmek için atıkların farklı şekillerde değerlendirilmesi gerekmektedir [18][19][20][21].…”

Selected Properties of Clay-Ash Composite Containing Bottom Ash from Combustion of Wood - Coconut Shells Biomass

“…The applied additions improve, depending on their composition, the mechanical and physical properties of ceramic products during drying and firing [1,2]. In the literature we can find reports on the attempts to use to produce of ceramics the waste slag [3][4][5], boron waste [6], calcite wastes [7], silts [8,9], refractory wool waste [10], sewage sludge [11][12][13], waste glass [14], and ash from combustion coal [15][16][17][18]. Few works regarding an attempt to use fly-ashes coming from the process of biomass co-combustion for producing the building ceramics [19][20][21] and concrete [22][23][24][25] have also appeared, and using ashes coming from the process of combustion of biomass [26].…”