Volatile Matter (VM) Quartz 

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VM crucibles and VM crucible lids are specialized types of crucibles and lids used in high-temperature applications, particularly in the manufacturing of single crystals and other advanced materials.
 

VM crucibles are made from a unique type of material called vitreous carbon, which is a highly pure and dense form of carbon. They are known for their excellent thermal stability, high purity, and resistance to chemical attack. VM crucibles are commonly used in high-temperature applications such as the growth of single crystals, where they provide a stable and pure environment for crystal growth.
 

VM crucible lids are also made from vitreous carbon and are used to cover and seal the VM crucibles during high-temperature processing. They are designed to fit snugly on the crucible and prevent contaminants from entering the crucible during crystal growth.
 

VM crucibles and VM crucible lids are widely used in scientific research and industrial applications where the production of high-purity materials is required. They are particularly useful in the production of advanced materials such as semiconductors, ceramics, and other high-tech materials.
 

Overall, VM crucibles and VM crucible lids are essential tools in the production of high-purity materials used in advanced applications. Their unique properties, such as high thermal stability, high purity, and resistance to chemical attack, make them ideal for use in high-temperature processing and crystal growth.