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Effect of heat treatment of Mn-Cu precursors on morphology of dealloyed nanoporous copper
  • ISSN号:1000-6931
  • 期刊名称:《原子能科学技术》
  • 时间:0
  • 分类:TQ342.21[化学工程—化纤工业] TS255.44[轻工技术与工程—农产品加工及贮藏工程;轻工技术与工程—食品科学与工程]
  • 作者机构:[1]Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China, [2]College of Physical Science and Technology, Central South University, Changsha 410083, China, [3]Department of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
  • 相关基金:Project(10804101) supported by the National Natural Science Foundation of China; Project(9140C6805021008) supported by the State Key Development Program for Basic Research of China; Project(2007B08007) supported by the Science and Technology Development Foundation of Chinese Academy of Engineering Physics
中文摘要:

有 nano 规模毛孔尺寸的 Nanoporous 铜被 dealloying Mn-Cu 先锋合金用一个免费腐蚀方法综合。结果的 nanoporous 铜的合金阶段,形态学和作文上的 Mn-Cu 先锋的热处理的效果被调查。作文在体积 Mn-Cu 先锋同类地散布,这被揭示,它因而充分导致更多为形成 nanoporous 铜的 dealloying。从到热的 Cu0.33Mn0.67 的 non-thermally 对待的先锋的 Cu0.49Mn0.51 和 Cu0.21Mn0.79 的合金阶段变化对待合金。在 nanoporous 铜的剩余 Mn 内容从 12.97% ~ 2.04% 被减少(臼齿的部分) 没有并且与 95 h 热处理,用先锋做了。dealloying 准备的 nanoporous 铜的典型毛孔形状没有热处理的先锋被划分成二个不同地区:一致双性人连续的结构地区并且模糊或没有毛孔结构地区。Nanoporous 铜具有用对待热的先锋做的一致像海绵的形态学,并且平均系带直径是 40 nm,比那远小从 non-thermally 对待的先锋,平均系带直径在被估计是大约 70 nm。

英文摘要:

Nanoporous copper with nano-scale pore size was synthesized by dealloying Mn-Cu precursor alloy using a free corrosion method. The effects of heat treatment of Mn-Cu precursors on alloy phase, morphology and composition of the resultant nanoporous copper were investigated. It is revealed that the compositions distribute homogeneously in the bulk Mn-Cu precursors, which consequently results in a more fully dealloying for forming nanoporous copper. The alloy phase changes from Cuo.a9Mno.51 and Cuo.21Mno.79 of non-thermally treated precursor to Cuo.33Mn0.67 of heat treated alloy. The residual Mn content in nanoporous copper is decreased from 12.97% to 2.04% (molar fraction) made from the precursor without and with 95 h heat treatment. The typical pore shape of nanoporous copper prepared by dealloying the precursor without the heat treatment is divided into two different zones: the uniform bi-continuous structure zone and the blurry or no pore structure zone. Nanoporous copper is of a uniform sponge-like morphology made from the heat-treated precursor, and the average ligament diameter is 40 nm, far smaller than that from the non-thermally treated precursor, in which the average ligament diameter is estimated to be about 70 nm.

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期刊信息
  • 《原子能科学技术》
  • 北大核心期刊(2011版)
  • 主管单位:中国核工业集团公司
  • 主办单位:中国原子能科学研究院
  • 主编:万钢
  • 地址:北京市275-65信箱
  • 邮编:102413
  • 邮箱:yzk@ciae.ac.cn
  • 电话:010-69358024 69357285
  • 国际标准刊号:ISSN:1000-6931
  • 国内统一刊号:ISSN:11-2044/TL
  • 邮发代号:82-161
  • 获奖情况:
  • 1991年全国首届国防科技期刊评比一等奖,“四通杯”北京优秀期刊全优期刊奖和全国优秀期刊...,“八五”期间优秀国防科技期刊奖,2011年“百种中...
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  • 被引量:7776