Spark Plasma Sintering = Spark Plasma Synthesis

火花等离子烧结 = 火花等离子合成

• 批准号: 319369316
• 负责人: Professor Dr. Wolfgang Tremel
• 金额: --
• 依托单位: Institut für Ionenstrahlphysik und Materialforschung
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/319369316?language=en
• 关键词: Spark; Plasma; Sintering; Synthesis

For widespread application, the preparation and subsequent consolidation steps of thermoelectric materials should be rapid. Therefore, the single-step preparation of a dense specimen from commercially available precursors is desired. But the undeniable fact, that dc-current had a significant influence on the reaction between the components in the SPS, due to increasing the kinetic of the solid-state reactions, as results, a reducing the synthesis time from days / weeks to minutes / hours. Using the dc electrical current in SPS process open us new opportunity to obtain the new materials, which are impossibly to prepare by other synthetic methods. Understanding the detail mechanism of this process will be the focus of our investigations.

为了广泛应用，热电材料的制备和随后的固结步骤应该是快速的。因此，需要从市售前体中一步制备致密样品。但不可否认的事实是，直流电流对 SPS 中各组分之间的反应具有重大影响，因为它增加了固态反应的动力学，从而将合成时间从几天/几周缩短到几分钟/小时。在SPS过程中使用直流电流为我们获得新材料提供了新的机会，这是其他合成方法无法制备的。了解这一过程的详细机制将是我们研究的重点。