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What's the difference between pottery and porcelain

Update Time ： 2018-07-04 View ： 2909

What's the difference between pottery and porcelain
Ceramic ceramics, which people tend to think of as a product, are not, in fact, divided into two different processes and made into different products: pottery and porcelain.
The difference between pottery and porcelain is not that there is glaze without glaze, but that pottery can have glaze. Porcelain can also be glazed without glaze, such as white porcelain placenta, because of its white and delicate texture, so no one will regard it as pottery.
The difference between pottery and porcelain is as follows:
The temperature is different
Pottery firing temperature is lower, more between 700-1000 ℃, tire body basic sintering, no longer meet water decomposition, but higher porosity and water absorption.
Porcelain firing temperature above 1100 ℃, at least basic vitrified TaiZhi, microscopic observation there is a lot of mullite crystals exist, porosity and bibulous rate is low, the voice of the knock is ringing.
The hardness is different
Different materials are used
Pottery can be made from various kinds of mineral clay including porcelain clay. Porcelain is made of porcelain clay with high alumina content, namely aged clay.
4. Different transparency
Different glaze materials
There are two kinds of pottery without glaze hanging and without glaze hanging. The ceramic glaze material with glaze hanging can melt at a lower sintering temperature. There are two kinds of glaze materials for porcelain, which can be burned at a high temperature with the body of the tire at a time, or at a high temperature with a low temperature glaze on the surface of the element glaze at a second time.
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