Thermal Analysis in the Ceramics and Glass Industry

Despite their unassuming appearances, glass and ceramics find their way into a myriad of high-tech products used across various industries. The applications of these materials span from everyday items like window glass and decorative ceramics to advanced, high-performance materials that bear little resemblance to their original forms.

High-performance ceramics, often referred to as engineering ceramics, occupy a unique niche where other materials reach their limitations. These ceramics are employed in diverse scenarios, ranging from handling immense loads and extreme temperatures to serving as crucial components in power systems or even as implants within the human body. Remarkably, ceramics can also be found in everyday kitchenware, such as ceramic pans or microwave-safe dishes, where they are typically coated with glaze to provide a glassy, impermeable surface over the crystalline, porous base material.

Glass, too, has transcended its traditional uses and is now gaining popularity in a wide array of applications. It is no longer confined to just drinking glasses but is employed in safety glass, glass-ceramic cooktops, and the production of fiber-optic cables. Glass serves as a natural choice for packaging, and it finds its place in water cookers, optical elements for astronomy, and even space travel.

Quality management is absolutely essential, as even the slightest variations in raw materials and the manufacturing process can significantly impact the desired properties of glass and ceramic materials. Rigorous raw material testing and consistent sampling are indispensable methods to determine critical aspects such as ceramic strength or the precise temperature at which a specific type of glass melts or transforms.

Linseis specializes in the manufacturing of a wide range of Thermal Analysis Tools that enable the precise measurement of material properties, including the thermal conductivity of glass and ceramics. These tools cover various properties, including but not limited to:

  • Determining specific heat capacity (DSC PT1600).
  • Assessing thermal expansion, glass transition, softening points, and sintering behavior through Dilatometry, available with both pushrod and non-contact optical systems.
  • Measuring the thermal conductivity of ceramics using techniques such as Laser Flash or Transient Hot Bridge.

To discover more about how Linseis can assist in assessing the conductivity of glass and ceramics, please reach out to us today.

Production of porcellain – green bodies
Glass in foundry
Green body with glaze
Different industry ceramics

Applications with ceramics and glass

LFA 1000 – BCR 724 – Thermal conductivity / thermal diffusivity
DIL L75 VS – Glass rod – Thermal expansion
DIL L75 VS – Zirconia – Rate controlled sintering (RCS)
DIL L75 VS – Quarz – Thermal expansion – calculated DTA
LFA 1000 – Carbide Ceramics – Thermal Conductivity
LFA 1000 – Aluminum oxide Al2O3 – Thermal diffusivity/ conductivity
LFA 1000 – Glass – Thermal diffusivity /Thermal Conductivity /Specific Heat Capacity
HFM – Windows Glass – Thermal transmittance – Horizontal vs. Vertical Measurments
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