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常温常压下Cu-Zn-Al合金一维纳米结构的制备
关键字：Cu-Zn-Al合金 一维纳米结构 纳米颗粒 生长机制
常温常压下，以Cu-Zn-Al合金为基体，经过适当的混和酸处理，制得了几种形貌和结构不同的一维合金纳米结构。通过能量弥散X射线（EDX）分析表明它们的主要成分是Cu、Zn、Al，其直径一般在20~50nm左右，最长长度达1600nm。合金中存在的非线性振荡，以及酸处理后产生纳米粒子是生成一维合金纳米机构的关键。结合透射电子显微镜照片初步分析了一维合金纳米结构的生长机制并给出了生长模型。
http://www.polymer.cn/research/dis_info200 |
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无压浸渗制备梯度Si3N4/Al复合材料
关键字：无压浸渗 梯度复合材料 预制体 Si3N4/Al
采用Al-Mg合金无压渗入具有梯度孔隙分布的Si3N4多孔预制体，制得大尺寸、梯度Si3N4/Al复合材料；对复合材料的显微组织，相组成，硬度进行了观察和测定，分析了层间铝合金薄层在释放梯度层间应力的作用，并采用SHPB装置对梯度复合材料进行动态压缩试验。试验结果表明梯度复合材料层间结合紧密，硬度从HRA80.5逐层过渡到HRA61.5，主要组成相为Al，Si3N4，AlN和Mg2Si；梯度复合材料在动态压缩过程中表现出较高韧性。
http://www.polymer.cn/research/dis_info114 |
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Cu-Zn-Al 合金纳米分叉结构的制备及显微分析
关键字：纳米结构 Cu-Zn-Al合金 分叉 透射电子显微术
通过对Cu-Zn-Al合金进行简单的化学处理，得到了具有分叉结构的Cu-Zn-Al合金纳米结构，用透射电镜考察了分叉纳米结构的形貌及其微结构特征。实验表明：分叉纳米结构的形态与化学处理工艺有关，有的分支纳米结构与未分支的形态类同，分支的顶端呈开口状态；有的沿生长方向呈规则的同向排列，各分支的形态相近，端部呈封闭状态。Cu-Zn-Al合金纳米分叉结构的形成可能与制备条件的扰动有关，对Cu-Zn-Al合金纳米结构的分叉生长机制进行了...
http://www.polymer.cn/research/dis_info93 |
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碳含量对Fe-Mn-Al-C合金相结构与屈服强度的影响
关键字：Fe-Mn-Al-C合金 相结构 屈服强度 参照相 碳含量
采用构造函数关系的方法，确定Fe-Mn-Al-C合金与元素含量的关系。以碳含量为横轴，锰、铝含量比为纵轴，画合金配比图，令其相界线为参照相(γ相)，利用作为锰、铝、碳三元素含量函数的参照相(γ相)，判别碳含量对合金相结构与屈服强度的影响。
http://www.polymer.cn/research/dis_info68 |
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EPDM/MMT/Al(OH)3 纳米复合电缆材料的制备和性能
三元乙丙橡胶（EPDM）具有优异的电绝缘性和耐候性等性能，广泛应用于中高压电缆的绝缘材料。
http://www.polymer.cn/research/dis_info13628 |
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EPDM/MMT/Al(OH)3 纳米复合电缆材料的制备和性能
三元乙丙橡胶（EPDM）具有优异的电绝缘性和耐候性等性能，广泛应用于中高压电缆的绝缘材料。
http://www.polymer.cn/research/dis_info13628 |
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【Journal of Alloys and Compounds】Analysis of recrystallization behavior of shot peened graphene reinforced Al composites during isothermal annealing by X-ray diffraction method
Graphene reinforced Al matrix composites (G/Al) with high mechanical property was successfully reported. However, there are quite limited studies about the recrystallization behavior of these new composites after plastic deformation. Here, the recrystallization behaviors of shot-peened surface layer of G/Al composites and Al during isothermal annealing were investigated by using X-ray diffractio...
http://www.polymer.cn//ss/zhaobin/publicationsshow_13795.html |
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Metal-organic framework MIL-53(Al) as a solid-phase microextraction adsorbent for the determination of 16 polycyclic aromatic hydrocarbons in water samples by gas chromatography-tandem mass spectrometry.
In this paper, the potential applications of metal-organic framework (MOF) materials as fiber coatings for the solid-phase microextraction (SPME) of polycyclic aromatic hydrocarbons (PAHs) in water samples were explored. Fibers coated with MIL-53(Al, Cr, Fe) materials were fabricated by an adhesive method for SPME. The quantitation was performed by gas chromatography-tandem mass spectrometry (GC...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10224.html |
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Synthesis, Anion Exchange, and Delamination of Co-Al Layered Double Hydroxide: Assembly of the Exfoliated Nanosheet/Polyanion Composite Films and Magneto-optical Studies
This paper describes a systematic study on the synthesis, anion exchange, and delamination of Co-Al layered double hydroxide (LDH), with the aim of achieving fabrication and clarifying the properties of LDH nanosheet/polyanion composite films. Co-Al-CO3 LDH hexagonal platelets of 4 ím in lateral size were synthesized by the urea method under optimized reaction conditions. The as-prepared CO...
http://www.polymer.cn//ss/liuzhaoping/publicationsshow_2847.html |
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[(salen)Al]-mediated, controlled and stereoselective ring-opening polymerization of lactide in solution and without solvent: Synthesis of highly isotactic polylactide stereocopolymers from racemic D,L-lactide
This paper communicated controlled and stereoselective ring-opening polymerization of lactide in solution as well as in the bulk by using a chiral salen-aluminum catalyst.
http://www.polymer.cn//ss/zhongzhiyuan/publicationsshow_983.html |
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