Effect of Flux Materials on the Melting Characteristics of Ash Glaze

Jae Hwan Pee; Geun Hee Kim; You Dam Choi; Doo Sub Jung; Gyung In Kang

doi:10.4028/www.scientific.net/KEM.608.21

Paper Titles

Preface, Committee, Organizers and Sponsors

Using Lime Mud Waste from Pulp Mill as an Additive in Brick Clay
p.3

Valorization of Mill Scale Waste by its Incorporation in Fired Clay Bricks
p.8

Study of Residual Stresses in Traditional Ceramics
p.14

Effect of Flux Materials on the Melting Characteristics of Ash Glaze
p.21

Strength Improvement of Porous Ceramics by the Surface Infiltration of Strengthening Materials
p.26

Improvement of Mechanical Properties of Lightweight Ceramics with the Addition of Alumina Fiber
p.31

Construction of a Glaze Database
p.37

Influence of Grog and Cement on Physical and Mechanical Properties of Unfired Clay Bricks
p.41

HomeKey Engineering MaterialsKey Engineering Materials Vol. 608Effect of Flux Materials on the Melting...

Effect of Flux Materials on the Melting Characteristics of Ash Glaze

Abstract:

Our objective was to make transparent glaze using oak ash which has a high content of CaO and contains P₂O₅. However, the melting point of oak ash is above 1340^°C, making it difficult to make transparent glaze using only oak ash. In order to lower the melting point of oak ash, flux materials were mixed to oak ash and melting characterization was carried out. Feldspar, which is largely composed of Na₂O and K₂O andlimestone largely composed of CaO were used as the flux materials. The materials were added 10, 20 and 30wt%, respectively, in order to produce the glaze. Depending on the type and amount of flux materials added, the samples were fired at temperatures between 1280~1320^°C in the reducing atmosphere. As the amount of feldspar added was increased, the melting point decreased substantially. Samples with limestone added did not melt completely even at temperatures 1300^°C and wollastonite phase was observed in the glaze layer.

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Periodical:

Key Engineering Materials (Volume 608)

Pages:

21-25

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.608.21

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Online since:

April 2014

Authors:

Jae Hwan Pee*, Geun Hee Kim, You Dam Choi, Doo Sub Jung, Gyung In Kang

Keywords:

Ash Glaze, Flux, Reducing Atmosphere, Washing, White Porcelain

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Effect of Flux Materials on the Melting Characteristics of Ash Glaze

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