Method for producing powder composition for ceramic coating and its use

Abstract

The present disclosure relates to a method for producing a powder composition suitable for use in the preparation of an alumina based ceramic coating. More particularly the disclosure relates to preparing the powder composition by heat treating a mixture of primary particles agglomerates, wherein the mixture of primary particles consists of between 35 and 60 mol-% cations and between 40 and 65 mol-% anions and the cations comprises between 1:3 and 1:40 of the total sum of Ca- and Si-ions (mol-%): Al-ions (mol-%). The mixture typically comprises Ca-ions (mol-%): Si-ions (mol-%) in a ratio of 1:2.5-2.5:1. The disclosure further relates to a powder composition obtained by the method of the disclosure and the use of the powder composition in thermal spraying to form a glass ceramic coating and the use of the powder composition for forming a glass ceramic structure in-situ in thermal spray deposition.

Dependencies are inferred from the claim text.