Effects of Zn concentration and heat treatment on the microstructure, mechanical properties and corrosion behavior of as-extruded Mg-Zn alloys produced by powder metallurgy
Molybdenum trioxide (h-MoO3, α-MoO3·H2O and h-/α-MoO3 composites) were prepared by a simple method in aqueous solution at 90-95 °C, without using autoclave or other complex equipment. The synthetic conditions for different phases of MoO3 were studied. The ratio of MoO42-:H+ and reaction temperature...
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| Veröffentlicht in: | Journal of alloys and compounds 2017-02, Vol.693, p.1290 |
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| container_title | Journal of alloys and compounds |
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| creator | Yan, Yang Cao, Hanwen Kang, Yijun Yu, Kun Xiao, Tao Luo, Jie Deng, Youwen Fang, Hongjie Xiong, Hanqing Dai, Yilong |
| description | Molybdenum trioxide (h-MoO3, α-MoO3·H2O and h-/α-MoO3 composites) were prepared by a simple method in aqueous solution at 90-95 °C, without using autoclave or other complex equipment. The synthetic conditions for different phases of MoO3 were studied. The ratio of MoO42-:H+ and reaction temperature play important roles for the crystal phases of MoO3. By changing the amount of H+ ions, the samples can be controlled as h-MoO3 microrods or α-MoO3·H2O microbelts. h-/α-MoO3 composites in homogeneous structure were obtained at higher temperatures. The study on the transformation process of h-MoO3 → α-MoO3·H2O → α-MoO3 would be helpful in designing functional MoO3 materials. The h-MoO3 microrods and h-/α-MoO3 composites showed good photochromic behavior under sunlight irradiation. |
| format | Article |
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The synthetic conditions for different phases of MoO3 were studied. The ratio of MoO42-:H+ and reaction temperature play important roles for the crystal phases of MoO3. By changing the amount of H+ ions, the samples can be controlled as h-MoO3 microrods or α-MoO3·H2O microbelts. h-/α-MoO3 composites in homogeneous structure were obtained at higher temperatures. The study on the transformation process of h-MoO3 → α-MoO3·H2O → α-MoO3 would be helpful in designing functional MoO3 materials. 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| fulltext | fulltext |
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| ispartof | Journal of alloys and compounds, 2017-02, Vol.693, p.1290 |
| issn | 0925-8388 1873-4669 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Alloy powders Aqueous solutions Autoclaving Chemical compounds Corrosion Extrusion Heat treatment Homogeneous structure Magnesium base alloys Mechanical properties Molybdenum Molybdenum trioxide Powder metallurgy Sunlight Zinc base alloys |
| title | Effects of Zn concentration and heat treatment on the microstructure, mechanical properties and corrosion behavior of as-extruded Mg-Zn alloys produced by powder metallurgy |
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