Fabrication, characterization and applications of novel nanoheater structures
Fabrication, characterization and applications of novel nanoheater structures
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新型纳米加热器结构的制备、表征和应用
DOI：
10.1016/j.surfcoat.2012.06.095
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发表时间：
2013
影响因子：
5.4
通讯作者：
C. Doumanidis
中科院分区：
文献类型：
--
作者：
Zhiyong Gu;Qingzhou Cui;Julie Chen;J. Buckley;T. Ando;Dinc Erdeniz;P. Wong;Anastasia Hadjiafxenti;Panos N. Epaminonda;I. Gunduz;C. Rebholz;C. Doumanidis
纳米加热器是反应性纳米结构，可以通过受控点火产生局部热。除了广泛使用的具有多个交替Al-Ni层的纳米箔结构之外，在过去的几年中已经制备了各种新的纳米结构，包括固结膜、纳米颗粒和纳米线以及球磨的微米/纳米粉末。本论文的主要工作是：（1）以Al纳米粒子为模板，采用电化学置换法合成Al-Ni纳米粒子，（2）采用电沉积和热蒸发两步法制备Al-Ni纳米线结构，（3）采用电化学沉积和热蒸发两步法制备Al-Ni纳米线结构，（4）采用电化学沉积和热蒸发两步法制备Al-Ni纳米线结构，（5）采用电化学沉积和热蒸发两步法制备Al-Ni纳米线结构，（6）采用热蒸发两步法制备Al-Ni纳米线结构。（3）采用一种新的超声粉末固结法制备Al-Ni复合材料，（4）以微米级Al粉和Ni粉为原料，采用低能球磨法制备纳米Al-Ni粉。纳米加热器结构的结构和组合物的特征在于通过扫描电子显微镜和透射电子显微镜，能量色散X射线光谱，和X射线衍射。利用差示扫描量热法研究了样品的热特性。这些新颖的纳米加热器结构在微连接、微电子组装和柔性电子键合中具有很大的应用潜力。
Nanoheaters are reactive nanostructures that can generate localized heat through controlled ignition. Besides the widely used nanofoil structure with multiple alternative Al–Ni layers, various new nanostructures have been fabricated in the last several years, including consolidated films, bimetallic nanoparticles and nanowires, and ball milled micro/nano powders. In this paper, we demonstrate the (1) Synthesis of Al–Ni bimetallic nanoparticles by a galvanic replacement reaction method using Al nanoparticle templates; (2) Fabrication of Al–Ni nanowire structures by a two-step process involving electrodeposition and thermal evaporation; (3) Fabrication of Al–Ni composites by a novel ultrasonic powder consolidation method, using Al and Ni nanoparticles as source materials and (4) Synthesis of nanostructured Al–Ni powders by low energy ball milling with microscale Al and Ni powders. The structure and compositions of the nanoheater structures have been characterized by scanning electron microscopy and transmission electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. The thermal characteristics of the samples were studied using differential scanning calorimetry. These novel nanoheater structures have great potential to be used in micro-joining, microelectronics assembly, and flexible electronics bonding.