Scholarlink

<p>This research delves into the thermal transport characteristics of the novel quaternary chalcogenide Se<sub>90-x</sub>Te<sub>5</sub>Sn<sub>5</sub>Zn<sub>x</sub> (0 ≤ x ≤ 9) (STSZ) network, which was prepared using the melt-quenching method. Measurements of effective thermal conductivity (λ<sub>e</sub>), effective thermal diffusivity (χ<sub>e</sub>), and specific heat per unit volume (ρC<sub>p</sub>) for twin pellets of STSZ chalcogenide glasses (ChGs) were conducted at ambient temperature by employing the transient plane source (TPS) technique. The observed a non-monotonous trend in the values of λ<sub>e</sub>, χ<sub>e</sub> and ρC<sub>p</sub> related to 3 at. mass% and 6 at mass% of Zn concentration in the quaternary compositions accredited to the formation of higher-order cross-linking. The two structural units at 3 at mass% and 6 at mass% of Zn are considered as critical (threshold) compositions at which the quaternary STSZ network turns into a chemically ordered alloy. Also, the observed discrepancies in thermal transport characteristics reliant upon composition can be connected to the structural relaxation phenomena of the multicomponent network of STSZ. In addition, a topological framework knowledgeable in constraint theory can provide inclusive clarification for the variations in the thermal transport properties of the STSZ network.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of zinc additive on thermal transport properties of novel multicomponent chalcogenide Se–Te–Sn system: transient plane source technique

  • 期刊论文

  • 发表日期：

    2025年10月8日

查看全文
  • Deepak Kumar,
  • Krishna Pal,
  • Arvind Kumar Sharma,
  • Horesh Kumar,
  • Kedar Singh,
  • Sunil Kumar

摘要

This research delves into the thermal transport characteristics of the novel quaternary chalcogenide Se90-xTe5Sn5Znx (0 ≤ x ≤ 9) (STSZ) network, which was prepared using the melt-quenching method. Measurements of effective thermal conductivity (λe), effective thermal diffusivity (χe), and specific heat per unit volume (ρCp) for twin pellets of STSZ chalcogenide glasses (ChGs) were conducted at ambient temperature by employing the transient plane source (TPS) technique. The observed a non-monotonous trend in the values of λe, χe and ρCp related to 3 at. mass% and 6 at mass% of Zn concentration in the quaternary compositions accredited to the formation of higher-order cross-linking. The two structural units at 3 at mass% and 6 at mass% of Zn are considered as critical (threshold) compositions at which the quaternary STSZ network turns into a chemically ordered alloy. Also, the observed discrepancies in thermal transport characteristics reliant upon composition can be connected to the structural relaxation phenomena of the multicomponent network of STSZ. In addition, a topological framework knowledgeable in constraint theory can provide inclusive clarification for the variations in the thermal transport properties of the STSZ network.