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Céramiques Techniques Industrielles (CTI)
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CTI - High Temperature Insulating Materials

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The Verneuil process involves very high temperatures (>2000°C), so it is necessary to ensure good thermal insulation. CTI produces all refractory components providing this function:

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The Verneuil process:

Around 1890 Auguste Verneuil developed a method for synthesis of semi-precious stones known as "fusion". This process uses an oxyhydrogen burner through which alumina is sprayed which melts and falls onto a seed crystal, recrystallized by cooling into a single crystal. A "bottle or carrot" (in red on the diagram) is formed as the alumina is injected and the crystallization frond is kept at a constant distance from the flame.

CTI offers manufacturers using this process a full range of insulation products from around the reaction.

Filtration of Molten Metals:

In aviation/aerospace and in the automotive industry, and in precision casting or the orthopaedic industry, zero defects and the absolute lack of inclusion in finished products are critical for meeting the functionality requirements and customer needs. Thanks to its historical culture in ceramics and its high-tech expertise, for over 15 years CTI has been developing and marketing multicellular filters in SUPERFILTRAMICS® materials for filtering molten metals at temperatures up to 1650°C.