The present disclosure relates to an orthophosphate thermal barrier coating material with high coefficient of thermal expansion and a preparation method thereof. ReM.sub.3P.sub.3O.sub.12 series ceramics with an eulytite crystal structure are prepared by a high-temperature solid-phase reaction for the first time. The ReM.sub.3P.sub.3O.sub.12 ceramic belongs to a −43 m space group of a cubic crystal system, which not only has a higher melting point and excellent high-temperature phase stability, but also has a lower thermal conductivity and a suitable coefficient of thermal expansion. It can effectively alleviate the stress caused by the mismatch of the coefficient of thermal expansion of the base material and the ceramic layer, so as to meet the requirements of thermal insulation and high-temperature oxidation and corrosion resistance of the hot end parts in long-term service, which has application prospects in the field of thermal barrier coatings.

The present disclosure relates to an orthophosphate thermal barrier coating material with high coefficient of thermal expansion and a preparation method thereof. ReM.sub.3P.sub.3O.sub.12 series ceramics with an eulytite crystal structure are prepared by a high-temperature solid-phase reaction for the first time. The ReM.sub.3P.sub.3O.sub.12 ceramic belongs to a −43 m space group of a cubic crystal system, which not only has a higher melting point and excellent high-temperature phase stability, but also has a lower thermal conductivity and a suitable coefficient of thermal expansion. It can effectively alleviate the stress caused by the mismatch of the coefficient of thermal expansion of the base material and the ceramic layer, so as to meet the requirements of thermal insulation and high-temperature oxidation and corrosion resistance of the hot end parts in long-term service, which has application prospects in the field of thermal barrier coatings.

A sintering aid mixture for sintering solid-state ion conductors, electrode materials, or the like for solid-state batteries is provided. The mixture includes at least one sol-gel precursor and/or at least one sol-gel direct precursor produced from at least one sol-gel precursor.

Pigments and inks for the decoration of ceramic objects, which have, in their formulation, iron and phosphorus oxides, combined with lithium oxide, the presence of this latter element being that which gives the pigments the capacity of being milled (in the form of a suspension in a solvent base) to the point of being able to obtain inks that are characterised by having very narrow PSD and an upper bound of less than 1 μm. Thanks to this PSD, inks prepared using these pigments can be applied in standard printing heads to glazed ceramic objects, enabling a metallic gloss and appearance to be obtained after said ceramic objects undergo a firing process. The ink obtain has a low viscosity, allowing an increase in the concentration of the pigment and thus an increase in its yield, optimizing gloss and the metallic appearance of the finished ceramic objects.

Pigments and inks for the decoration of ceramic objects, which have, in their formulation, iron and phosphorus oxides, combined with lithium oxide, the presence of this latter element being that which gives the pigments the capacity of being milled (in the form of a suspension in a solvent base) to the point of being able to obtain inks that are characterised by having very narrow PSD and an upper bound of less than 1 μm. Thanks to this PSD, inks prepared using these pigments can be applied in standard printing heads to glazed ceramic objects, enabling a metallic gloss and appearance to be obtained after said ceramic objects undergo a firing process. The ink obtain has a low viscosity, allowing an increase in the concentration of the pigment and thus an increase in its yield, optimizing gloss and the metallic appearance of the finished ceramic objects.

At least partial substitution of zirconium by hafnium in ion-conducting zirconium-based ceramics provides enhanced chemical stability in alkaline and acid environments.

At least partial substitution of zirconium by hafnium in ion-conducting zirconium-based ceramics provides enhanced chemical stability in alkaline and acid environments.

At least partial substitution of zirconium by hafnium in ion-conducting zirconium-based ceramics provides enhanced chemical stability in alkaline and acid environments.

A medical use honeycomb structure having a plurality of through-holes extending in one direction, wherein an outer peripheral section of the medical use honeycomb structure has a through-hole groove formed by incomplete side walls of the through-hole, and a through-hole inlet adjacent to the through-hole groove.

A medical use honeycomb structure having a plurality of through-holes extending in one direction, wherein an outer peripheral section of the medical use honeycomb structure has a through-hole groove formed by incomplete side walls of the through-hole, and a through-hole inlet adjacent to the through-hole groove.