Category Archives: Ceramic Kiln

What is Ceramic/Glass Annealing?

Annealing occurs by the diffusion of atoms within a solid material, so that the material progresses towards its equilibrium state. Heat increases the rate of diffusion by providing the energy needed to break bonds. The movement of atoms has the effect of redistributing and eradicating the dislocations in metals and (to a lesser extent) in ceramics. This alteration to existingRead more ›

High Temperature Kilns and Furnace Considerations

Guys who’ve been doing ceramics for decades tend to call everything a kiln. Back in the day you could point to some differences between a ceramic kiln and a high temp furnace used for metallurgy. A Kiln had a slow heat-up, a soak period, and a slow cool-down that minimized thermal shock to what were usually thermally sensitive ceramic materials.Read more ›

Annealing, Sintering and Calcining Processes

Calcination is one of the most common processes used in the ceramics industry among many others. The most common application for Calcining is the decomposition of calcium carbonate to calcium oxide and carbon dioxide, in order to create cement. The product of calcination is usually referred to as “calcine,” regardless of the actual minerals undergoing thermal treatment. Calcination is carried out in furnaces orRead more ›

High Temperature Furnaces for Technical Ceramics

As anyone involved in the production of technical ceramics knows, the precise high-temperature firing of ceramic material in a furnace is integral to the overall quality of the process. Perhaps the most high-profile example of this would be firing of the heat shield tiles used on the space shuttle. These tiles are formed from pure silica fibers and heated toRead more ›