A Review of Porous Glass-Ceramic Production Process, Properties and Applications

Abstract

Porous materials exist around our environment and play an important role in our daily lives to be used widely in many fields, among the fields are energy distribution and storage, vibration suppression, liquid filtration, heat insulation, and sound absorption. Porous glasses are materials that have pores structure using silica as the primary component in all types of standard and specialty glass mixture with a foaming agent and other additives. Porous glass is usually in the size of nanometre and micrometer range. Porous glass is usually prepared by using phase separation, sintering and sol-gel method [1]. This review paper will focus on the various properties of this porous material related to the production process used to their properties and possible applications such as filtering, lightweight concrete, heat resistance insulator, and biomaterials.

Glass and Glass-Ceramic Porous Materials for Biomedical Applications

“…If the particles are homogeneous and their concentration is low, then low porosity, pore size and permeability are achieved (Chakraborty et al, 2020). Time and temperature have a decisive impact on the properties and porosity, therefore the gas release process cannot be too long, as its complete removal from the structure is associated with an increase in density (Hakim et al, 2022). If the sintering temperature increases, the density and microhardness increase and the porosity decreases.…”

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

“…Many conventional methods for fabricating metallic porous structures include foaming, templating, sponge replication, and dealloying [19][20][21]. However, these traditional techniques often have drawbacks, such as complex processes, lengthy lead times, high overall costs, and the need for sophisticated equipment.…”