Porcelain > Feldspar Porcelain

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IKEA 365+ Egg Cup

Porcelain is a generally known and found material that people generally prefer because it is durable, versatile and visually appealing. It is a material made by heating materials such as porcelain, kaolin and other constituent clays, feldspar or flint and silica to very high temperatures, ranging from 1200°C to 1400°C, in a furnace.Porcelains are divided into 3 different categories: Hard Paste,Soft Paste,Bone China

Feldspar: This type of porcelain is slightly translucent due to the high percentage of glass phase in its structure. It is durable and fired at a temperature of approximately 1,300 – 1,400 ºC. Feldspar porcelains are continuous with soft paste porcelains.

General Features 

  • (+) Since porcelain is a material that is fired at 1400 ºC, it has a translucent feature, which distinguishes it from other products. This process provides brightness, whiteness and translucency.
  • (+) High resistance
  • (+) It looks elegant with its thin and beautiful structure.
  • (-) It is hard, durable, but it can be brittle because of its glassy structure.
  • (+) It is zero porous, therefore it is dirt-proof and hygienic.
  • (-) It can be costly.
  • (+) It is insulating and does not burn.

Why did they choose this material for this product?

With its tougher, thinner, lighter structure, more elegant shapes, durability, and easy-to-clean vitreous coating, porcelain was instantly accepted by people as a better alternative to pottery and quickly improved people’s lives, especially for eating and drinking. Since porcelain is an inert and heat resistant material, it does not cause any chemicals that may harm the body to mix with the food. Using porcelain for the home does not pose any risk to general health. It is also used in electronics because it is a good insulator.

Usage Areas

  • Building Materials
  • Electrical Insulation
  • Medicine
  • Art
  • Decoration
  • Household Utensils
  • Laboratory Use
Figure 1: It is used in household items such as plates and bowls.
Figure 2: Porcelain is an excellent insulator, especially for use with high voltages in outdoor applications.
Figure 3: Porcelain can be used as a building material, usually in the form of tiles or large rectangular panels.
Figure 4: Dental porcelain is used for crowns, bridges and veneers.

Manufacturing Techniques

The necessary raw materials are selected and the necessary quantities are subtracted by weight, they are made to go through a series of preparation stages. To begin with, they are first crushed, then purified. It is then mixed together before undergoing several shaping processes. The forming process can be any of the pressing, casting, hard plastic forming or soft plastic forming processes. The choice of forming process will generally depend on the type of porcelain ware to be produced. After forming the porcelain body, it is fired, then it can be glazed. Glass is the process of firing a decorative layer of glass into a ceramic body. Finally, the porcelain is then fired. Some porcelain is shaped and fired in what is called a ‘bisque’

In summary, the manufacturing process of porcelain includes crushing the materials to be used, cleaning and mixing these materials, shaping the body, firing if necessary, followed by glazing and re-firing.

Figure 5

Similar Materials

Ceramic: It is formed by the combination of materials such as clay and kaolin. It is easy to shape. It is rougher than porcelain. Can be used indoors. It may be cheaper than porcelain.

Stoneware: Stone is made from a specific clay that is fired at a higher temperature of 1,200°C. This results in a more durable material with a denser, stone-like quality. The finished product will be waterproof and will not need glazing unlike earthenware.

Earthenware: Soil is clay that is fired at relatively low temperatures between 1,000 and 1,150 degrees. This results in a slightly porous hardened but brittle material, so it cannot be used to contain water. To fix this, a glaze is used to cover the object before it is fired a second time in the furnace and waterproofed.

References

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