Sodium Feldspar; It is widely used in ceramic and glass production. It is used as a melter in the ceramic industry due to its alkaline properties.
Sodium Feldspar Ceramic Mud;
-Provides heat savings by reducing the melting degree
-Due to its melting properties, it increases the strength of the tile by reducing water absorption (%H2O3).
-More economical than other alkalis
-After a certain temperature, it changes the structure of silica by forming a bond with silica.
Sodium feldspar Glaze:
-Reduces the melting of the glaze
-Increases the coefficient of expansion
-Increases surface brightness
-If used excessively, it will cause corrugation on the surface.
Sodum feldspar, also known as Albit, is the raw material with the highest commercial reserve in the world and more than half of the Na feldspar used in the ceramics industry is obtained from the feldspar deposits in Aydın Çine etc. Feldspar, with a hardness of 7, is translucent. Since it is a hard material, it is commercially added to the glaze recipe in powder form. The alkali total of Sodium Feldspar in our country varies between 9-10.5%. However, due to intensive use, fedspar reserves decrease rapidly. and can be accessed after a short time. The decrease in reserves will cause feldspar production costs to increase and world prices to rise. This increase will put world ceramic manufacturers in search of alternative products.
Feldspars are the most abundant rock-forming minerals and constitute 60% of the earth's crust. Their general formula is XAl(1-2)Si(3-2)O(8) and X can be sodium, potassium or calcium depending on the situation. Those with K2O values greater than 10% are defined as K-feldspar or potash feldspar, and those with Na2O values greater than 7% are defined as Na-feldspar or soda feldspar. Feldspars; They belong to the group of silicates and are also described as alumina-silicates. In other words, feldspar; It is the general name of a mineral group.
Feldspars are divided into two groups, alkali feldspars and chalco-sodic feldspars (plagioclases), in terms of their isomorphic mixtures and formation characteristics.