Thermal conductivity and mechanical properties of soda-lime glass with interfacially connected Au layer fabricated via sputtering and spark plasma sintering
Thermal conductivity and mechanical properties of soda-lime glass with interfacially connected Au layer fabricated via sputtering and spark plasma sintering
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DOI：
10.1080/21870764.2022.2068286
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发表时间：
2022-04
影响因子：
2.3
通讯作者：
Lei Liu;K. Shinozaki
中科院分区：
文献类型：
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作者：
Lei Liu;K. Shinozaki
摘要玻璃被用于各种基板，但其导热性和机械性能低于陶瓷。在本文中，我们提出了一种新的工艺制造热传导路径使用少量的金属。通过离子溅射将Au涂覆在钠钙玻璃粉末上0、20、40和60分钟，并通过放电等离子体烧结来烧结所得粉末。Au纳米层沉淀在钠钙玻璃域之间，并且彼此连接良好。其厚度随着溅射时间的增加而增加。热导率提高了10%，少量的沉淀小于0.28体积%，主要是由于良好连接的高导电性Au纳米层。Au的析出对合金的硬度和韧性几乎没有影响。
ABSTRACT Glass is used for various substrates, but its thermal conductivity and mechanical properties are lower than ceramics. In this paper, we propose a new process for fabricating heat conduction paths using a small amount of metal. Au was coated on soda-lime glass powder via ion sputtering for 0, 20, 40, and 60 min, and the resultant powders were sintered via spark plasma sintering. The Au nanolayers precipitated between the soda-lime glass domains and were well connected to each other. Their thickness increased with increasing sputtering time. The thermal conductivity was enhanced by 10% with a small amount of precipitation less than 0.28 vol%, mainly resulting from the well-connected highly conductive Au nanolayers. The hardness and toughness were hardly affected by the precipitation of Au.