Effect of different pressure forces on the dense porous layer of ceramics

Awang Ngah, Nurasyilah (2024) Effect of different pressure forces on the dense porous layer of ceramics. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this study is to examine how different pressure forces affect the mechanical and structural characteristics of dense-porous layers in ceramic materials derived from a mixtures clay, Silica and Feldspar. Bi-layered ceramics have two layers in their structure which are a porous lower layer and a thick upper layer created by double pressing. The dense layer’s function is to give the porous layer structural support. The pore-forming agent polymethylmethacrylate (PMMA) is added to the porous layer at weight percentage of 5%. The goal of the study is to clarify how various pressure levels throughout the fabrication process affect the final ceramics' microstructure, porosity, and mechanical strength. To do this, a controlled experimental setup was used to apply various pressure forces to a series of ceramic samples. To create dense, porous layers, ceramic powders were first compressed under various pressures and then sintering was performed. The microstructural properties were examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM), which included pore size distribution and interconnectivity. Using established testing procedures, mechanical attributes like compressive strength and hardness were assessed. According to results, a pressure of 20 MPa is the best for the ceramic material to have the optimal balance of mechanical characteistics, density and smoothness under the tested conditions. Higher pressures are associated with less porosity and improved mechanical performance. This work offers important new insights into the optimization of dense-porous ceramic layer production, with potential applications in filtration, catalysis, and structural materials, among other areas. To fully comprehend the underlying principles and to improve the control parameters for customizing ceramic materials with particular qualities, more research is necessary. It is expected that the result of using the different pressure can improve their functionality for advance technology.

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