Influence of pulsed-electric-current sintering conditions on the non-stoichiometry and thermoelectric properties of Ti_{1 + x}S₂

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• 作者：Tilen Sever^a ; ^b ; ^{tilen.sever@ijs.si} ; Marjeta Maček Kržmanc^a ; Slavko Bernik^c ; Danilo Suvorov^a ; Bo&scaron ; tjan Jančar^a
• 关键词：Titanium disulphide ; Thermoelectric materials ; Pulsed electric current sintering ; Structure-property relationship ; Transport properties
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：642-651
• 全文大小：1674 K
• 卷排序：114

文摘

Sintering TiS2 can result in off-stoichiometry and the intercalation of Ti atoms. Such structural changes greatly affect the thermoelectric properties of TiS2. S/Ti ratio decreases with sintering temperature upon the volatilization of sulphur. Highest S/Ti ratio is obtained by high-pressure sintering at lower temperatures. Sulphur volatilisation is restrained when using a gas tight-sintering mould.