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矿物颗粒度对粉末颜色的影响
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  • 英文篇名:The Effect of Mineral Particle Size on Powder Color
  • 作者:王心华 ; 钟芬 ; 徐跃 ; 许家奇
  • 英文作者:WANG Xinhua;ZHONG Fen;XU Yue;XU Jiaqi;National Demonstration Center for Experimental Physics Education,Lanzhou University;School of Physical Science and Technology,Lanzhou University;
  • 关键词:有色材料 ; 研磨 ; 粒度 ; 粉末颜色 ; Mie散射
  • 英文关键词:colored materials;;grinding;;particle size;;power color;;Mie scattering
  • 中文刊名:实验室研究与探索
  • 英文刊名:Research and Exploration in Laboratory
  • 机构:兰州大学物理学国家级实验教学示范中心;兰州大学物理科学与技术学院;
  • 出版日期:2019-08-15
  • 出版单位:实验室研究与探索
  • 年:2019
  • 期:08
  • 基金:兰州大学教学研究项目(2018077)
  • 语种:中文;
  • 页:52-55+83
  • 页数:5
  • CN:31-1707/T
  • ISSN:1006-7167
  • 分类号:TB303
摘要
当一种有色材料被研磨后,在某些情况下被研磨成的粉末会呈现出与原有材料不同的颜色。运用控制变量法,仅对微米级别的有色材料进行研磨,并结合Mie散射理论探究在研磨前后其颜色的变化规律,并以明度(亮度)、色调(色相)、饱和度(纯度)定义颜色。选取4种不同颜色的材料,分别为色光三原色中的红色材料Fe2O3、绿色材料Cu2(OH)2CO3、明度最高的白色材料Zr SiO4以及明度最低的黑色材料Fe3O4。结果表明,对于微米级别的矿物颗粒,粒度越小,粉末的明度也就越高,而其色调和饱和度基本保持不变。
        When a colored material is ground,in some cases the ground powder will exhibit a different color than the original material. In this paper,we use the control variable method to grind only the micronsized colored materials,and combine the Mie scattering theory to explore the color change before and after grinding,and define it by brightness,hue and saturation. A total of four different color materials were selected,namely red material Fe2 O3,green material Cu2(OH)2 CO3,white material Zr SiO4 with the brightest brightness and Fe3 O4 with the lowest brightness. The results show that for micronsized mineral particles: the smaller the particle size,the higher the brightness of the powder,while the hue and saturation remain essentially unchanged.
引文
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