Due to its high melting point of 2610°C, molybdenum crucibles are widely used as core containers in industrial furnaces such as sapphire single crystal growth furnaces, quartz glass melting furnaces and rare earth smelting furnaces, where the working temperature environment is generally above 2000°C. Especially for sapphire single crystal growth furnaces, the molybdenum crucible with its high purity, high density, no internal cracks, precise dimensions, smooth inner and outer walls, etc. plays a key role in the success rate of the seed crystal, the quality control of the drawn crystal, the de-crystallisation of the sticking pot and the service life of the sapphire crystal growth process.
