Morphology Changes of Molybdenum Alloy Powders Doped with Different Oxides AITranslate
Abstract AITranslate
With Al(NO3)3,La(NO3)3,Zr(NO3)4 and(NH4)2Mo4O13 as raw materials, the Al2O3,La2O3 and ZrO2 doped molybdenum powders were prepared by hydrothermal synthesis, low temperature calcination and two-stage reduction processes.SEM,XRD,EDS and other detection methods were used to analyze the morphology and phase structure of the powders in each preparation stage.The results show that the evolution of molybdenum in the preparation process is h-MoO3→α-MoO3→MoO2→Mo, and the doping of oxides has influence on each stage.The pH value of the mixture is different due to the different pH value of each group after the second phase suspension is mixed with h-MoO3 suspension, which results in the decomposition of h-MoO3 with the hexagonal micron column structure to different degrees.The crystal form of h-MoO3 transforms into α-MoO3 with layered structure during calcination, the surface of α-MoO3 in the mixed powder has obvious lamellar structure under the action of the second phase.The morphology of the powder is irregular and MoO2 particles in the mixed powder have small size and obvious adhesion after the primary reduction.Mo particles are nearly spherical and the second phase can obviously refine Mo particles after the two-stage reduction.The effects of different oxides to refine Mo particles are La2O3,ZrO2 and Al2O3 from strong to weak, among which La2O3 has the best refining effect, and the average size of La2O3-doped Mo particles can reach 1 μm.
KeyWords AITranslate
1武洲,李晶,刘晓辉,姚云芳.国内钼行业研究热点分析[J].中国钼业,2019,43(3):1-8. 被引量：4
2李洲,徐流杰,魏世忠,潘昆明,肖方闹.水热法制备ZrO_2掺杂钨合金粉末的工艺研究及表征[J].稀有金属与硬质合金,2017,45(1):31-35. 被引量：4
3周宇航,胡平,常恬,邓洁,胡卜亮,王快社,冯鹏发.钼合金强韧化方式及机理研究进展[J].功能材料,2018,49(1):1026-1032. 被引量：14
4罗来马,周宇芬,章宇翔,昝祥,刘家琴,朱晓勇,吴玉程.钼基材料的强韧化技术研究现状和发展趋势[J].中国有色金属学报,2019,29(3):525-537. 被引量：9
5朱向炜,张国赏,崔超鹏,魏世忠,郭松亮.Zr元素添加量对钼合金组织和性能的影响研究[J].稀有金属与硬质合金,2014,42(4):31-34. 被引量：2
6冯鹏发,孙军.钼及钼合金粉末冶金技术研究现状与发展[J].中国钼业,2010,34(3):39-45. 被引量：25
7徐流杰,肖方闹,周玉成,潘昆明,魏世忠.氧化钇稳定立方晶型氧化锆增强钨基合金制备工艺及性能[J].材料热处理学报,2016,37(4):37-44. 被引量：3
8匡文兴,范以宁,陈开东,邱金恒,王镇浦,陈懿.镧-钼复合氧化物超细微粒催化剂结构和甲苯选择氧化催化性能[J].无机化学学报,1997,13(1):105-108. 被引量：9
1常富强,牛南南,梁献振.洛钼选厂二段球磨机钢球配比优化研究[J].现代矿业,2022,38(3):125-128. 被引量：2
2蒋丽娟,曹亮,高海亮,刘燕,刘晓辉,张智伟.2021年钼业年评[J].中国钼业,2022,46(2):1-7.
1杨应宝,伏彦雄,裴英杰,周强,肖庆飞.易门铜业Φ2.4×3.6 m球磨机磨矿介质配比优化研究[J].黄金科学技术,2023,31(1):163-170.
2徐今冬,余超,陈晓锋,吴彩斌,张忠祥.不同磨矿介质对细粒磁铁矿磨矿效果的影响[J].有色金属科学与工程,2023,14(4):561-568.
1李世磊,胡平,段毅,左烨盖,邢海瑞,李辉,邓洁,冯鹏发,王快社,胡卜亮.掺杂方式对钼合金组织与力学性能影响的研究进展[J].材料导报,2020,34(9):132-142. 被引量：3
2顾晓雪,汪恂,朱雷,韩琪,刘显.N/La-TiO_(2)的制备及光催化降解水杨酸的研究[J].环境科学与技术,2020,43(11):104-109. 被引量：2
3唐才林,陈嘉丽,张荣菲,徐新军,黄文鸿,杨得坡,赵志敏.不同产地阳春砂总酚与总黄酮测定及抗氧化活性研究[J].中华中医药杂志,2021,36(1):122-126. 被引量：7
4刘子奇,仇付国,赖曼婷,李津,董慧峪,强志民.紫外/亚硫酸盐高级还原工艺加速降解水中难降解含碘造影剂[J].环境科学,2021,42(3):1443-1450. 被引量：2
Basic Information:
DOI：
Chinese Library Classification Number:TG146.412[金属学及工艺—金属材料]
Citation Information:
With Al(NO3)3,La(NO3)3,Zr(NO3)4 and(NH4)2Mo4O13 as raw materials, the Al2O3,La2O3 and ZrO2 doped molybdenum powders were prepared by hydrothermal synthesis, low temperature calcination and two-stage reduction processes.SEM,XRD,EDS and other detection methods were used to analyze the morphology and phase structure of the powders in each preparation stage.The results show that the evolution of molybdenum in the preparation process is h-MoO3→α-MoO3→MoO2→Mo, and the doping of oxides has influence on each stage.The pH value of the mixture is different due to the different pH value of each group after the second phase suspension is mixed with h-MoO3 suspension, which results in the decomposition of h-MoO3 with the hexagonal micron column structure to different degrees.The crystal form of h-MoO3 transforms into α-MoO3 with layered structure during calcination, the surface of α-MoO3 in the mixed powder has obvious lamellar structure under the action of the second phase.The morphology of the powder is irregular and MoO2 particles in the mixed powder have small size and obvious adhesion after the primary reduction.Mo particles are nearly spherical and the second phase can obviously refine Mo particles after the two-stage reduction.The effects of different oxides to refine Mo particles are La2O3,ZrO2 and Al2O3 from strong to weak, among which La2O3 has the best refining effect, and the average size of La2O3-doped Mo particles can reach 1 μm.
quote
| GB/T 7714-2015 | [1] SONG Wan-li, XU Liu-jie, SHANG qing-yi, et al. Morphology Changes of Molybdenum Alloy Powders Doped with Different Oxides[J]. Rare Metals and Cemented Carbides, 2021(1): 40-47. |
| MLA | [1] SONG Wan-li, et al., "Morphology Changes of Molybdenum Alloy Powders Doped with Different Oxides." Rare Metals and Cemented Carbides, no. 1, 2021, pp. 40-47. |
| APA | [1] SONG Wan-li, XU Liu-jie, SHANG qing-yi, & HUANG Zhi-min. (2021). Morphology Changes of Molybdenum Alloy Powders Doped with Different Oxides. Rare Metals and Cemented Carbides(1), 40-47. |
| IEEE | [1] SONG Wan-li, XU Liu-jie, SHANG qing-yi, and HUANG Zhi-min, "Morphology Changes of Molybdenum Alloy Powders Doped with Different Oxides," Rare Metals and Cemented Carbides, no. 1, pp. 40-47, 2021. keywords: {molybdenum powder;hydrothermal synthesis;low temperature calcination;two-stage reduction;oxide doping;powder morphology} |