| abstract |
The inventive thermochromic material comprises a thermochromic component and a binding agent. Crystalline phases of oxides selected from a group consisting of compounds of common equations are used as the thermochromic component: (i) (Bi2O3)1-z(MxOy)z, at z=0-0.5, where M is selected from a group comprising heavy, alkaline and alkaline-earth metals and mixtures thereof, (ii) (MxOy)m(Bi2O3)n Nb (Ta)2O5, at m=o-1, n=1-2; where M is selected from a group comprising heavy, alkaline and alkaline-earth metals and mixtures thereof, (III) (MxOy)m(Bi2O3)n Mo (W)O3, at m=0-1, n=0-12, where M is selected from a group comprising heavy, alkaline and alkaline-earth metals and mixtures thereof, (iv) (MxOy)m(MexOy)nMo(W,Cr)O3, at mm=0-1,n=0-1, where M is selected from a group comprising heavy, alkaline and alkaline-earth metals and mixtures thereof, Me being a heavy metal, (v) (MxOy)m(MexOy)nNb (Ta)2O5; at m=0-1, n=0-1, where M is selected from a group comprising heavy, alkaline and alkaline-earth metals and mixtures thereof, Me being selected from a group consisting of Cu(II), Mn(II), Mn(III),Co(II), Ni(II) and Cr(iii), at a ratio between the thermochromic component and the binding agent ranging from 2.98 to 98.2 mass %. The inventive thermochromic components are provided with a property to reversibly change the colour thereof in such a way that the temperature variation of 100 DEG C is visible. Coatings based on said components exhibit thermal stability. |