Optimal design of mechanical and physical quality of pottery using TOPSIS method

Abstract

Abstract The quality of pottery can identify from the mechanical properties and physical properties of the pottery resistance to mold and mildew. Mechanical properties can measure by bending strength and impact strength, while physical properties can measure from water absorption. The Small Medium Enterprise (SME) production pottery in Klaten has a bending strength of 9.03 MPa, affect the strength of 0.0844 Joule/mm2 and water absorption of 14.69%. One competitive strategy is to improve product quality. Improving the quality of pottery products can be done by improving the mechanical properties and physical properties. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is a multicriteria decision making method. TOPSIS method can provide the best alternative choice based on the quality attributes of the product used. The results from this research showed that the combination of level factors that produced the optimum quality have bending strength of 10.21 Mpa, impact strength of 0.0798 Joule/mm2, water absorption of 11.75%. Based on the sensitivity analysis of attribute weights, it found that changes in the order of priority weights were sensitive only in the order of impact strength, bending strength, and water absorption.