Low‐Temperature Fabrication of Anorthite Ceramics

Fabrication of anorthite ceramics suitable for low temperature, sinterable, multilayered substrates is described. Anorthite ceramics were synthesized from relatively pure kaolin and calcites of varying particle sizes. Mixed powders were uniaxially pressed and fired between 900° and 1200°C. Firing at 1000°C yielded a dense anorthite ceramic when the finest calcite powder was used. The relative density and water absorption of the anorthite ceramic were 94% and almost zero, respectively. Mixtures containing coarser calcite had lower densities and higher water absorption.

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