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发明公开
CN105555737A 碳化锆的锭及粉末的制造方法 无效 - 撤回

碳化锆的锭及粉末的制造方法
摘要：
本发明提供一种廉价且有效地制造碳化锆锭的方法。本发明具体地提供一种碳化锆锭的制造方法，其特征在于，具有下述工序，所得到的碳化锆锭的大小为50mm以上，密度为5.7g/cm3，维氏硬度为1500以上：(1)工序1：将氧化锆和碳混合得到混合物，所述混合物中的碳相对于氧化锆的质量比率为15～20质量％；(2)工序2：对所述混合物进行造粒得到造粒物；(3)工序3：将所述造粒物利用氩等离子体熔融；(4)工序4：将所述熔融物缓慢冷却得到碳化锆锭。
摘要（英）：

The present invention provides a method for producing an ingot of zirconium carbide at low cost and with high efficiency. Specifically, the present invention provides a method for producing an ingot of zirconium carbide, said method being characterized by comprising steps as mentioned below and also characterized in that the resultant ingot of zirconium carbide has a size of 50 mm or more, a density of 5.7 g/cm3 and a Vickers hardness of 1500 or more: (1) step 1 of mixing zirconium oxide with carbon to produce a mixture, wherein the ratio of the mass of carbon to the mass of zirconium oxide in the mixture is 15 to 20% by mass; (2) step 2 of granulating the mixture to produce granules; (3) step 3 of melting the granules by means of argon plasma; and (4) step 4 of cooling the molten product gradually to produce an ingot of zirconium carbide.

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