• Rahman, Hamimah Abd
• Abbas, N. H. Yatim Abdul

Abstract

<jats:title>Abstract</jats:title><jats:p>Ceramic foams are high-value products with multiple functions, such as thermal insulation, acoustic insulation, fireproof and freezing tolerance. Wide-ranging ceramic-foam applications can reduce energy consumption and indoor fire hazards. The utilisation of ceramic materials in manufacturing requires appropriate methods to reduce the problems associated with these features. Ceramic foams have excellent thermal stability and structural resilience against organic solvents and chemical corrosion. They can also be used in various engineering applications. Natural additives such as starch, sucrose and yolk are used to control the pore structure of the products. These additives serve as foaming and binding agents to enhance the stability of foaming slurry. The use of starch strengthening in the ceramic fabrication is widespread because of its low cost and reduced impact on the environment. The effects of starch addition on the mechanical properties of ceramic foams include increased density, linear shrinkage and compressive strength, as well as decreased porosity and water absorption. These effects depend on the contents of starch and sintering temperature. This review focuses on the use of starch as a binding agent for ceramic-foam fabrication.</jats:p>

Topics

• density
• impedance spectroscopy
• pore
• corrosion
• strength
• porosity
• ceramic
• sintering