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Ceramic nanocomposite by electrodeposition of nickel into porous alumina matrix

机译:镍含镍进入多孔氧化铝基质的陶瓷纳米复合材料

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This paper reports a process of electrodeposition of Ni into porous alumina matrix. In the proposed process, porous alumina membrane with cross linked networks was fabricated using colloidal powder processing and pressureless sintering. The dispersion conditions of aqueous alumina nanopowder suspensions were obtained by optimizing both the pH and dispersant concentration. The optimal pH of the suspension is found to be 7 and the amount of dispersant is 12 mg/g of alumina powder. Alumina green parts were sintered at 1200 °C to obtain porous alumina matrix. Ni was deposited into the porous alumina compacts. The experimental results show that Ni nanoparticles are uniformly dispersed in the porous membrane during the electrodeposition process.
机译:本文报道了Ni的电沉积进入多孔氧化铝基质的过程。在所提出的方法中,使用胶体粉末加工和无压烧结制造具有交叉连接网络的多孔氧化铝膜。通过优化pH和分散剂浓度来获得氧化铝纳米滤光器悬浮液的分散条件。发现悬浮液的最佳pH值为7,分散剂的量为12mg / g氧化铝粉末。氧化铝绿色部件在1200℃下烧结,得到多孔氧化铝基质。 Ni沉积在多孔氧化铝块中。实验结果表明,在电沉积过程中,Ni纳米颗粒在多孔膜中均匀地分散在多孔膜中。

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