Ceramic material, process for its production, and use of the...

Details Ceramic material, process for its production, and use of the... Ceramic material, process for its production, and use of the...

C - Chemistry, Metallurgy

04

B

C04B 35/443 (2006.01) C01F 7/16 (2006.01) C04B 35/05 (2006.01) C04B 35/053 (2006.01) C04B 35/653 (2006.01) C04B 41/45 (2006.01) C23C 4/10 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2377078

The invention relates to a ceramic material (1) which is suitable for coating a body (9) using a thermal spraying method and which has a thermal longitudinal expansion coefficient that can be adapted to that of a metal. The ceramic material (1) contains between 10 and 95 wt. % MgAl2O4, between 5 and 90 wt. % MgO, up to 20 wt. % Al2O3 and a residue of conventional impurities. The material has grains (3) of MgO which are embedded in a MgAl2O4 matrix (2).

L'invention concerne une matière céramique (1) qui peut être utilisée pour recouvrir un corps (9) selon un procédé de pulvérisation thermique et qui présente un coefficient de dilatation en longueur thermique qui est adapté à celui d'un métal. La matière céramique (1) contient 10 à 95 % en poids de MgAl¿2?O¿4?, 5 à 90 % en poids de MgO, jusqu'à 20 % en poids de Al¿2?O¿3?, le reste étant constitué des impuretés habituelles, et elle présente des grains (3) de MgO qui sont intégrés à une matrice (2) de MgAl¿2?O¿4?.

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