Alfred University Research and Archive (AURA)

Effects of Glaze Variables on the Mechanical Strength of Whitewares

Show simple item record Benson, Jennifer L 2011-10-14T19:43:30Z 2011-10-14T19:43:30Z 2003
dc.description.abstract Glaze thickness and glaze composition were systematically altered to study their effects on the mechanical strength of two commercial porcelain bodies, an alumina body and a silica body. This study determined that glaze composition affects the mechanical strength of porcelain piece in a linear fashion. The mechanical strength of a porcelain piece can then be predicted, accounting for the Young’s Modulus of the body. Maximum strengths values were achieved for the silica body at a thermal expansion mismatch level, between the body and glaze, of 0.93x10-6/K. This corresponded to a mechanical strength of 97 MPa. It was not determined if a maximum had been reached for the alumina body, because when the amount of thermal expansion mismatch was the greatest, a surface layer was present on the body that caused large voids at the glaze/body interface during application of the glaze. Fractography analysis was used to identify, when possible, fracture origins. This analysis attempts to correlate fracture origin sizes with strength, and the variation in fracture origin size to the scatter in the strength data. Fracture origins were, generally, identified as bubbles in the glaze for the lowest-strength samples, grains and pores at the glaze/body interface for the intermediate-strength samples, and grains and inclusion in the body for the highest-strength samples. en_US
dc.language.iso en-US en_US
dc.publisher Alfred University. Faculty of Ceramic Engineering. Kazuo Inamori School of Engineering en_US
dc.subject Strength en_US
dc.subject Glazes en_US
dc.subject Mechanical properties en_US
dc.subject Whitewares en_US
dc.title Effects of Glaze Variables on the Mechanical Strength of Whitewares en_US
dc.type Thesis en_US

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