This exceptional resistance makes graphite an indispensable material in numerous forward-looking industries – from metal processing to semiconductor manufacturing and space technology. Its ability to withstand extremely high temperatures without undergoing significant shape changes enables processes that are essential for the development of modern technologies.

Energy transition and sustainable technologies

Graphite is playing an increasingly important role in future technologies, particularly in the context of the energy transition and sustainable development. Its unique properties make it a key material for various environmentally friendly applications.

In solar energy, graphite components are essential for the efficient production of high-quality solar cells. The thermal stability and uniform heat distribution of graphite help to provide the basis for the highest conversion efficiencies for commercial solar cells. Monocrystalline silicon solar cells, which are known for their high efficiency, are produced from silicon blocks grown using the Czochralski process – a process in which graphite components have a decisive positive influence on the result.

The durability and efficiency of graphite products also contribute to the sustainable production of solar modules by minimizing waste and energy consumption. These aspects make graphite an environmentally friendly material whose use will continue to increase in the future.

Graphite crucibles: the heart of metal melting processes

One of the most classic and also most important applications of graphite at extreme temperatures are graphite crucibles, which are used in melting furnaces to melt metals. These crucibles are used in a wide range of applications, from precious metal processing to iron foundries, and make the most of graphite’s unique properties.

Graphite crucibles can withstand temperatures of up to 3,000 °C and are therefore ideal for melting metals with high melting points. The advantages of graphite crucibles are obvious: they offer excellent thermal shock resistance, which is particularly important as rapid temperature changes often occur when melting metals. They also have a uniform and dense matrix structure, which reduces the degree of erosion and thus contributes to a longer service life. Their ability to withstand high thermal loads ensures that any treatment process can be carried out safely.

Graphite in the semiconductor and solar industry

In the modern semiconductor and solar industry, graphite has become indispensable in high-temperature processes. Its thermal stability and purity make it a cornerstone for the production of high-quality electronic semiconductors and solar cell components.

In the semiconductor industry, graphite is used in particular for critical processes such as silicon crystal growth. Its excellent thermal uniformity ensures even heat distribution, which is crucial for the quality of the semiconductors produced.