Ceramic capacitors
General characteristics of condensators – Ceramic capacitors

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Ceramic capacitors
General characteristics of condensators – Ceramic capacitors

Author : Henri LAVILLE

Publication date: November 10, 2018 | Lire en français

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2. Ceramic capacitors

A possible definition of a ceramic capacitor could be: a capacitor in which the dielectric is a sintered ceramic material, i.e. densified by high-temperature heat treatment.

Ceramics are inorganic, non-metallic materials that have been processed using a special technology known as ceramic technology: the material is initially in the form of fine powders, micron or submicron in size, which are combined to form an object. It is then subjected to a high-temperature thermal cycle (firing or sintering). The resulting object is called "sintered", and its microstructure, which has evolved during firing, is a compact assembly of grains separated by grain boundaries. The material thus acquires its definitive properties (whether mechanical or electrical). Ceramic capacitor materials are generally oxides with a perovskite-type crystalline structure and a base...

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