Effect of storing on the microstructure of Ag/Cu/HA powder |
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Authors: | Hui Yang Lin Zhang Ke-Wei Xu |
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Affiliation: | 1. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, PR China;2. Life College of Science & Engineering, Shaanxi University of Science & Technology, Xi’an weiyang district university park 710021, PR China |
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Abstract: | The nanosized Ag/Cu/HA powder is thermodynamically unstable and easily congregates during storing, which may make it lose the nanomaterial's properties. In this work, the performances of Ag/Cu/HA during storing were studied. The Ag/Cu/HA powders were prepared using a one-step co-precipitation method. The effects of storing on powder microstructures were investigated. The microstructures of Ag/Cu/HA powders were characterized by X-ray diffraction and scanning electron microscopy. The results show that the diffraction intensities and the sizes of the calcined Ag/Cu/HA powders are reduced during storing. Storing makes the diffraction angles of 0 0 2 and 3 0 0 peaks decreased and makes that of 2 1 1 peak increased. In addition, storing increases the crystal growth along the c-axis without the effect on the crystal morphology of powders. The stored Ag/Cu/HA powders can induce the formation of new HA crystal the same as the stored Ag/Cu/HA powders with platelet morphology and low intensity and crystallinity similar to nature bone. |
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Keywords: | A. Powders: chemical preparation B. Nanocomposites C. Chemical properties D. Apatite |
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