Geopolymer materials have garnered considerable interest as one of the most promising eco-friendly inorganic options over last decade, thanks to their remarkable properties, including mechanical, chemical, and thermal stability, cost-effectiveness, sustainable synthesis process, enabling use in numerous high-value applications. Meanwhile, ever-increasing concentration CO2 atmosphere is an urgent concern for environment human health, forcing development effective capture, storage,...

The formulation and trade-off between a control rheological ink its printability are significant challenges for designing defect-free extrusion-based 3D printed feedstock of piezoelectric materials. In this study, we explore different strategies, including design, printing dynamics, densification behaviors, to successfully manufacture dense 3D-printed lead zirconate titanate (PZT) ceramic using material extrusion. First, PZT inks solid volumes (50–55 vol%) were designed an aqueous binder...

The aim of the study was to investigate effect amorphous silica on phase formation and physical characteristics forsterite refractory prepared from quartz MgO powder. Various samples were subjected sintering temperature around 1100 °C development characterized using Fourier Transform Infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM). result indicate that addition rice husk ash (RHA) significantly affect phase. As amount RHA increased, it led a better...

The aim of the investigation is to develop nano-crystalline forsterite by utilizing amorphous silica and magnesia through solid-state route. Amorphous was yielded from burning biomass, i.e. rice husk (RH). precursor powders were subjected calcination for a temperature range 700–1000 °C evolution phase characterized using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM). results indicate that increasing around 1000 °C, absolutely...

The aim of this study is to fabricate synthetic wollastonite from chicken eggshells (CES) and rice husk ash (RHA) through an economical solid-state route. Wollastonite was formulated with a stoichiometric amount calcined (~99% CaO) heat-treated RHA (~93% SiO2) as ingredients at 1000, 1100, 1150 1200°C for 120 min. XRD spectrum revealed single-phase para-wollastonite (monoclinic, P21/a) after annealing 1100°C powder contents comprising mainly phase pseudo-wollastonite (anorthic, C-1). For...

Abstract This work aims to synthesize silica foam with around 75 vol. % open porosity without using any additive or pore forming agents, in order prevent the generation of greenhouse gases during formation matrix. Waste rice husk ash ( RHA ) derived is used as a source, which extracted through alkali extraction synthesis route. Several physical characterizations such X‐ray diffraction (XRD), scanning electron microscope SEM ), transmission microscopy TEM differential...

The main objective of this study is to evaluate the use different wastes as a raw material in fabrication insulation refractory. These are fly ash, rice husk (RH), ash (RHA) and fired refractory grog. Various samples prepared with compositions based upon partial fully replacement clay by FA. Rice used an additive produce pores matrix. specimens semi dry process sintering performed at 800–1000 °C air atmosphere. Numerous physical, mechanical thermal characterizations like apparent porosity...

Clay bonded silica refractory was prepared by utilizing agriculture waste called rice husk ash (RHA) and grog. Various samples were with different compositions based upon partial replacement of quartz RHA. Rectangular following semi dry process prior to pressing in a uniaxial hydraulic press sintering at temperature 1200 °C air atmosphere. physical, mechanical thermal characterizations done like X-ray diffraction (XRD), scanning electron microscope (SEM), apparent porosity (AP), bulk density...

Nanoparticles (NPs) show many unique and advanced behaviors compared to micron-sized particles above. The effect of NPs on the rheological sintering nature direct ink writing (DIW) [extrusion-based three-dimensional (3D) printing] inks has been comprehensively studied. were first formulated through particle size grading microalumina nanoalumina (NA) with aqueous-based solvents, it was found that solid volume in increases up a certain NA (2%) inclusion due change friction mechanism between...

The present investigation aims to estimate the feasibility of using eggshell and rice husk ash (RHA) as ingredients produce calcium silicate board (CSB). solid-state route was used prepare (CS) powder through mixing heat treated RHA (∼93% SiO2) calcined eggshells (∼99% CaO) at 1050 °C. CSB specimens were prepared room temperature by simple curing process followed different proportions CS powder, ordinary portland cement (OPC) unground (URHA). Several physicals, mechanical thermal...