Thermal shock
Thermal shock occurs when a ceramic object is subjected to a sudden change in temperature, generating internal stresses that can cause cracks, fractures or even breakage of the part. This phenomenon is common in applications where ceramics are exposed to extreme thermal variations, such as in cookware, technical ceramics or industrial components.
Resistance to thermal shock is a crucial property in this type of ceramics. To improve it, materials with low coefficients of thermal expansion, such as certain specially formulated clays, are used. In addition, additives such as grog, a material that reinforces the internal structure and helps dissipate stresses, are incorporated. Proper design, with uniform thicknesses and simple shapes, is also essential to minimize thermal stress.
For example, a thermal shock-resistant ceramic bowl can move from a hot kiln to a cold surface without risk of cracking, making it ideal for culinary use. In industrial applications, thermal shock resistant ceramics are used in kiln linings, thermal insulators and components subjected to extreme conditions.Interesting Fact
Technical ceramics used in electronic or aviation components are specifically designed to withstand large temperature variations without breaking.Helpful Tip
When creating functional pieces such as kiln vessels, be sure to use a clay mix that is suitable to withstand sudden temperature changes without fracturing.
