本實驗室研究以高溫自我蔓延燃燒合成法製備氮化鋁已有相當長的時間，此方法之可行性及難易度與鋁粉之型態密切相關，先前本實驗室使用之鋁粉主要為片狀鋁粉，片狀鋁粉之堆積密度較低、孔隙度高、鋁粉與氮氣之接觸面積大，燃燒合成反應易於進行，亦易於獲得高轉化率及量產技術，但是此種鋁粉價格高不利於工業生產，多數其他形狀之鋁粉，價格較低廉，但是大多堆積密度高、氮氣供應不易，不易進行燃燒合成反應，亦不易獲得高轉化率並建立量產技術，本研究別以開發使用低價位鋁粉燃燒合成氮化鋁之合成技術為目標，吾人選用不規則形鋁粉為燃燒合成製備氮化鋁之原料，僅需要添加少量添加劑，且反應時僅需在低壓力氣氛下即可反應，自原本之每批次150克級放大至15公斤級，吾人並探討製程方法與最佳操作條件以10kg級而言，在最佳操作條件下，經過顎碎後的氮化鋁粉體，產率約達99%其中灰粉轉化率98.82%；黃粉轉化率99.34%，本研究亦探討並建立將合成之塊狀產物，於顎碎至小於兩毫米級，經由簡易研磨(使用球磨架之研磨方式)，而達到合乎市場需求(10μm左右)之乾式研磨技術。此球磨架乾式研磨技術，與先前本實驗室建立之濕式球磨技術比較，具有不須使用溶劑及烘乾粉體所需成本之優勢。

In our laboratory has studied the preparation of aluminum nitride by high-temperature self-propagating combustion synthesis for a long time. The feasibility and difficulty of this method are closely related to the type of aluminum powder. The aluminum powder used in our laboratory was mainly flakes. Flaky aluminum powder has low bulk density, high porosity and large contact area between aluminum powder and nitrogen so combustion synthesis reaction is easy to proceed, and it is easy to obtain high conversion and establish mass production technology, but the price of this aluminum powder high is not conducive to industrial production. Most other shapes of aluminum powder are cheaper, but most of them have high bulk density so nitrogen supply is not easy. It is not easy to carry out combustion synthesis reaction, and also not easy to obtain high conversion and establish mass production technology. The synthesis of aluminum nitride of using low-price aluminum powder is the goal. I chose irregular aluminum powder as the raw material for the preparation of aluminum nitride by combustion synthesis. Only a small amount of additives need to be added, and the reaction only needs to be under a low nitrogen pressure. The reactant is from the original 150 grams of each batch to 15 kilograms. I discuss the process and the best operating conditions. For the 10kg class, under the best operating conditions, the aluminum nitride after jaw crushing the yield of the powder is about 99%. The conversion of gray powder is 98.82%; the conversion of yellow powder is 99.34%. This study also explored and established a block product, which was crushed to less than two millimeters in the jaw by simple grinding ( Use the grinding method of tumbling mill), and achieve the dry grinding technology that meets the market demand (about 10μm). Compared with the wet ball mill technology established in our laboratory, the dry grinding technology of the ball mill has the advantage of not requiring the use of solvents and without the cost of drying powder.

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