Constellation knowledge: What is the technological performance of diopside?

What is the technological performance of diopside? The exothermic effect of anorthite, bluestone, cristobalite and other minerals produced after diopside glazed tile body firing is less than that of anorthite, mullite and cristobalite produced after ordinary glazed tile firing, and the reaction is relatively stable. Then, let's take a look at the birthstone of Bian Xiao!

The technological properties of diopside are columnar and acicular crystals, without adsorbed water and interlayer water. The loss on ignition is very low, only 0.22%~ 1.4%, while the loss on ignition of clay is as high as 17%. Diopside is a poor material with low water absorption, which can effectively reduce the shrinkage of ceramic body.

Diopside and clay make up the green body, because the clay particles are very fine and have strong plasticity and bonding ability, while diopside particles are coarse, needle-like or columnar crystals, and the thickness is evenly stacked, and there are small gaps in the green body to form a drainage channel, which endows mud with the characteristics of pressure filtration dehydration and rapid drying of mud cakes, and can realize rapid drying. The blank using diopside has good formability and high drying strength, and it is not easy to produce defects such as interlayer.

The exothermic effect of anorthite, bluestone, cristobalite and other minerals produced after diopside glazed tile body firing is less than that of anorthite, mullite and cristobalite produced after ordinary glazed tile firing, and the reaction is relatively stable. At the same time, the timely addition of diopside glazed tiles is less than that of ordinary tiles, which can be preheated and cooled quickly and greatly reduce the cooling shrinkage of glazed tiles.

Diopside glazed tiles have small expansion coefficient and fast cooling speed, which can prevent the glaze from crystallizing and Fe2+ in the body from being oxidized to Fe3+, thus improving the gloss and whiteness of glazed tiles. Diopside minerals form a network structure, and glass is distributed between skeletons. This kind of network gap is beneficial to the penetration of glaze layer and the better combination of blank and glaze. Therefore, the mechanical strength, shrinkage and yield of diopside glazed tiles are superior to other materials.

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