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Thermal behavior of nano-silver clay in the application of handmade jewelry

机译：纳米银黏土在手工饰品中的热行为

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摘要

Nano-silver clay was utilized to be the alternative material for hand making jewelry products. Silver nanoparticles were synthesized in aqueous solution by the chemical reduction method. The clay-liked feature of silver nanoparticles was accomplished by mixing the nano-sized silver with organic binders and water. Analysis of the firing transformation and microstructure of nano-silver clay was carried by differential thermal profile and SEM. The results revealed that the sintering temperature of the nano-silver clay was initiated at lower temperature (ca. 250℃) than that of bulk silver metal. The optimal condition of the heating process of nano-silver clay for jewelry application was investigated. The optimal condition of the firing temperature was above 600℃ with the heating rate of 10℃/min and the holding time 60 min. Herein, nano-silver clay offers not only clay-liked feature, which is proper for molded jewelry body by hand, but also the mechanical property is good enough for wearable jewelry body.
机译：纳米银粘土被用作手工制作珠宝产品的替代材料。通过化学还原法在水溶液中合成了银纳米粒子。银纳米颗粒的粘土状特征是通过将纳米级银与有机粘合剂和水混合来实现的。通过差热图和扫描电镜对纳米银黏土的烧成和微观结构进行了分析。结果表明，纳米银粘土的烧结温度是在比块状银金属更低的温度（约250℃）下开始的。研究了珠宝首饰用纳米银黏土加热工艺的最佳条件。烧成温度的最佳条件是600℃以上，升温速度为10℃/ min，保温时间为60min。在此，纳米银粘土不仅具有像粘土一样的特性，适合手工模制的珠宝首饰体，而且其机械性能对于穿戴式珠宝首饰体也足够好。

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