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Production of rutile single crystal

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专利汇可以提供Production of rutile single crystal专利检索,专利查询,专利分析的服务。并且PURPOSE: To stably and readily obtain the titled large-sized single crystal having homogeneous optical characteristic, by heating a crucible filled with TiO
2 with a specific heater, melting the TiO
2 , bringing a seed crystal consisting of a rutile single crystal into contact with the resultant melt and pulling up the seed crystal while rotating.
CONSTITUTION: A crucible consisting of a high-melting material, e.g. Ir, etc., is filled with a raw material, e.g. high-purity TiO
2 or rutile single crystal, etc., and heated with a resistance heating type heater using a carbon heating element, W heating element, etc., in a vacuum or inert gas atmosphere to melt the raw material and give a raw material melt. A seed crystal consisting of a rutile single crystal is then brought into contact with the melt and pulled up while rotated by a Czochralski process to grow the titled single crystal. After growing, the single crystal is heat-treated, as necessary, in an oxidizing atmosphere to afford the aimed single crystal.
COPYRIGHT: (C)1987,JPO&Japio,下面是Production of rutile single crystal专利的具体信息内容。

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