Bentonite clays are frequently used in the formulation of structural ceramics at low concentration in spite of its chemical composition which is similar to kaolinite, the most used clay for this purpose. During the study of the sintering properties of natural bentonite clay, we found that the studied bentonite can be used as main component to formulate structural ceramic products where control of dimension is fundamental. According to our study, with ceramic formulation based on bentonite clay, during thermal treatment a plateau where dimensional changes are minimal can be used to sinter the ceramic pieces. This process represents a significant advance related to the conventional process where CaCO 3 is used to promote the crystallization/vitrification process of several phases by reaction of amorphous silica and amorphous meta kaolinite with the CaO produced during the thermal decomposition of CaCO 3 .
|Original language||American English|
|Title of host publication||Effects of crystallization and vitrification on sintering properties of bentonite clay|
|Number of pages||46|
|State||Published - 13 Aug 2010|
|Event||Ceramic Transactions - |
Duration: 1 Jan 2012 → …
|Period||1/01/12 → …|