The invention discloses a substrate glass
platinum channel structure and a preparation method thereof, and a filler for the substrate glass
platinum channel structure, and aims to protect the
platinum channel by using the ZrO2-based filler, thereby prolonging the service life of the platinum channel. The technical scheme is as follows: the substrate glass platinum channel structure comprises a platinum channel, and an upper-layer
refractory material and a lower-layer
refractory material which are coated on the periphery of the platinum channel, wherein the lower-layer
refractory material is provided with a groove for placing the platinum channel, and the depth and width of the groove are respectively greater than the
diameter of the platinum channel; the refractory materials are used for supporting and soaking the platinum channel; the
fire resistance of the refractory materials is greater than 1700 DEG C; a clearance respectively is left between the platinum channel and the upper and lower refractory materials, and filled with a filler; the filler comprises the following components in percentage by
mass: 70-85% of ZrO2, 5-20% of Al2O3 and 1-10% of SiO2; and the
sintering temperature of the filler is 1100-1300 DEG C.