奈米熱劑之高放熱熱劑反應，所產生之單位體積或單位重量的反應物所產生的反應熱都遠高於RDX或TNT等高爆藥。我們於本研究中提出一項創新之鋁/氧化銅奈米熱劑合成法，並探討其反應特性。合成步驟中首先採用線徑75微米的銅線，置放於爐溫400到600°C之間的高溫爐內，在恆溫2到4個小時的環境下進行熱氧化，於銅線表面生成氧化銅奈米線陣列，並利用掃描式電子顯微鏡觀察氧化後的銅線表面與斷面形貌，做為熱氧化實驗參數的篩選，氧化後的銅線斷面，由內到外分別為：未氧化的銅芯、Cu2O層、CuO層、氧化銅奈米線。鋁材選用50和100奈米的鋁粉粉體做為原料，以電泳沉積的方式將奈米鋁粒子沉積於氧化銅奈米線陣列的空隙之中。本研究配製3：1的乙醇/水溶液做為奈米鋁粒子之分散介質，鋁粉倒入乙醇水溶液後將液體進行2.5分鐘的間歇性超音波震盪，讓懸浮液中的鋁粒子能夠均勻的分散於其中。震盪後的液體被倒入電泳裝置中，施加不同電壓差或改變電泳時間，進行鋁粉粒子的電泳沉積，而沉積厚度會隨著電壓差或時間增加而變厚。
完成電泳沉積後，本研究採用示差掃描量熱法進行奈米熱劑的可行性進行驗證和反應特性量測。奈米熱劑於氮氣或氬氣的環境下由室溫開始，以10°C/min的升溫速率加熱，紀錄奈米熱劑隨溫度上升的熱流曲線。以80伏特，10秒的條件所合成的奈米熱劑在氬氣環境下加熱，可成功在388°C點燃反應，根據DSC曲線，此反應有兩個放熱峰，分別位於鋁的熔點前後。第一個放熱峰於529°C達到最大，而放熱峰值於566°C時發生，於642°C結束。在第一個反應結束過後剩餘的鋁熔化，在660°C時產生吸熱峰值。在鋁熔化之後，液態鋁與CuO和Cu2O層再次引發反應，產生第二個放熱峰，峰值在760°C發生。第一個放熱峰量測值為1921 J/g，第二個放熱峰的量測值為1187 J/g，合計為3108 J/g。本實驗也利用高速攝影機記錄燃燒測試的過程，奈米熱劑可由點火槍於底部點燃後產生由下往上的反應傳遞現象。反應傳遞過程中會有煙霧出現於反應區域，也會有部分熔融態的產物由反應區滴落。在80伏特的電壓下電泳時間大於15秒，可合成出能夠自行傳遞反應的奈米熱劑，而反應速度於電泳時間為20秒，傳遞速度有較大值，落於39.3 ± 2.4 cm/s 之間。

Assembly methodology and reaction characteristic of Al/CuO nanothermite have been discussed in this research. Copper oxide nanowires were first grown on copper wires of 75 μm in diameter via thermal oxidation in box furnace at various temperatures and duration. Surface morphology and cross section of copper wires were observed by scanning electron microscope after thermal oxidation. The layers under CuO nanowires are CuO layer, Cu2O layer and copper core respectively. The size of the aluminum nanoparticles was 50 or 100 nm in diameter. Aluminum particles were driven into the gaps in the array of CuO nanowires through electrophoretic deposition as assembly method of nanothermite. Aluminum particles were add into 3:1 ethanol/water solution as electrophoretic colloid. Various voltage difference was exerted for different duration to drive Aluminum particles. Deposition layer thickness grows with voltage difference or electrophoretic duration. Differential scanning calorimetry shows thermite reaction was fully ignited at 388°C in argon purged furnace. Exothermic reaction peaks at 566°C. An endothermic peak at 660°C was found due to melting of aluminum. The second heat release peak should then be the result of the reaction between liquid phase aluminum and solid copper oxides. Thermite assembled via 80V electrophoretic deposition with duration shorter than 15 sec cannot propagate reaction along copper wire after ignition. Reaction propagation speed along the nanothermite wire with 80 V and 20 sec electrophoretic deposition was the highest. The propagation velocity was 39.3 ± 2.4 cm/s.

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