Science China Technological Sciences

, Volume 58, Issue 12, pp 2046–2051 | Cite as

In situ study of the mechanical properties of airborne haze particles

  • MingShuai Ding
  • WeiZhong Han
  • Ju Li
  • Evan Ma
  • ZhiWei ShanEmail author


Particulate pollution has raised serious concerns regarding its potential impacts on human health in developing countries. However, much less attention has been paid to the threat of haze particles to machinery and industry. By employing a state-of-the-art in situ scanning electron microscope compression testing technique, we demonstrate that iron-rich and fly ash haze particles, which account for nearly 70% of the total micron-sized spherical haze particles, are strong enough to generate abrasive damage to most engineering alloys, and therefore can generate significant scratch damage to moving contacting surfaces in high precision machineries. Our finding calls for preventive measures to protect against haze related threat.


haze particle hardness abrasive damage precision industry 


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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • MingShuai Ding
    • 1
  • WeiZhong Han
    • 1
  • Ju Li
    • 1
    • 2
  • Evan Ma
    • 1
    • 3
  • ZhiWei Shan
    • 1
    Email author
  1. 1.Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) and Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’anChina
  2. 2.Department of Nuclear Science and Engineering and Department of Materials Science and EngineeringMassachusetts Institute of TechnologyCambridgeUSA
  3. 3.Department of Materials Science and EngineeringJohns Hopkins UniversityBaltimoreUSA

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