What is the difference between magnesia porcelain and bone china?

What is the difference between magnesia porcelain and bone china? Magnesia porcelain refers to a ceramic material with MgO-containing aluminosilicate as the main crystal phase. Magnesia porcelain white porcelin dinnerware can be divided into original enstatite porcelain (Steatite Ceramic), forsterite porcelain, spinel porcelain, and cordierite porcelain according to different main crystal phases. Ceramic). These types of porcelain belong to the MgO-Al2O3-SiO2 ternary system. Their basic properties are as follows: Talc porcelain MgO-SiO2 orthorhombic 3.10 high strength, low dielectric loss, low thermal stability Forsterite porcelain 2MgO-SiO2 orthorhombic 3.26 dielectric loss, high expansion coefficient spinel porcelain MgO-Al2O3 Cubic 3.60 Small dielectric loss, low expansion coefficient, high hardness Cordierite porcelain 2MgO-2Al2O3-5SiO2 orthorhombic 2.60 Poor electrical performance, low expansion coefficient, good thermal stability Talc porcelain is generally used in frequency modulation wireless equipment such as radar, TV , And insulating parts, etc. Forsterite has low dielectric loss and large specific volume resistance, and can be used as a high-frequency insulating material. Cordierite has a very low expansion coefficient and is used for insulating materials or electric heating materials that require the volume not to change with temperature, but its electrical properties are poor. Spinel is generally used in refractory materials. Bone china is abbreviated as bone china (BONE CHINA), and its scientific name is bone ash china. It is a kind of porcelain made from animal bone charcoal, clay, feldspar and quartz as basic raw materials, after high-temperature biscuit firing and low-temperature glaze firing twice. According to the bone china standards set by the United Kingdom, it contains 30% of the tricalcium phosphate from animal bones, and the finished product has light transmittance, so it can be called bone china. The American standard is at least 25%.

In the past few decades, Porcelain Dish Set production has increased because of the use of catering crockery.

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