Eurokera S.n.c.

Centre National De La Recherche Scientifique

Photonis France

Théo Jegorel

Erwann Luais

Pablo Vilato

Jean-Christophe Harmand

Clément Sieutat

Moustapha Conde

Claude Alibert

A glass-ceramic article, includes at least one substrate, such as a plate, made of glass-ceramic, the substrate being coated in at least one zone with at least one stack formed 1) of at least one first layer of metal nitride or of semimetal nitride, the first layer exhibiting a thickness of at least 200 nm and a hardness of at least 14 GPa, and 2) of at least one second layer of metal oxide or of semimetal nitride, the second layer exhibiting a thickness of less than 14 nm and exhibiting a coefficient of friction of less than 0.25, the first and second layers being in contact with each other, the second layer being further from the substrate than the first layer.

Glass-ceramic article

A glass-ceramic article, includes at least one substrate, such as a plate, made of glass-ceramic, the substrate being coated in at least one zone with at least one layer including zirconium silicon nitride, SiZrN, with an atomic ratio of Zr to the sum Si+Zr, y/(x+y), of 10% to 90%.

The present invention relates to a plate, intended to equip appliances of the chimney insert, stove, chimney, boiler, heating appliance, fireplace or equivalent type and/or to serve as a fire barrier, said plate being formed of at least one glass-ceramic substrate coated on at least one of its faces with the following stack of layers: The present invention also relates to a process for obtaining said plate, as well as a device incorporating said plate.

Glass-ceramic plate for fireplace insert and manufacturing process

The invention discloses a photocathode comprising an amorphous substrate such as a glass substrate () presenting an input face that will receive incident photons and a back face opposite the front face. Nanowires () made from at least one III-V semiconducting material are deposited on the back face of the substrate and extend from this face in a direction away from the front face. The invention also relates to a method for manufacturing such a photocathode by MBE.

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Paris, France

Théo Jegorel