A pin-on-disc study of the rate of airborne wear particle emissions from railway braking materials

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• 作者：Saeed Abbasi^a ; ^{sabbasi@md.kth.se} ; ^{sabbasi@kth.se} ; Anders Jansson^b ; Lars Olander^c ; Ulf Olofsson^a ; Ulf Sellgren^a
• 关键词：Airborne particles ; Railway ; Wear ; Brake pad ; Brake block
• 刊名：Wear
• 出版年：2012
• 期刊代码：183_00431648
• 类别：et
• 出版时间：25 April, 2012
• 卷：284-285
• 期：Complete
• 页码：18-29
• 文件大小：2355 K

摘要

The current study investigates the characteristics of particles generated from the wear of braking materials, and provides an applicable index for measuring and comparing wear particle emissions. A pin-on-disc tribometer equipped with particle measurement instruments was used. The number concentration, size, morphology, and mass concentration of generated particles were investigated and reported for particles 10 nm-32 渭m in diameter. The particles were also collected on filters and investigated using EDS and SEM. The effects of wear mechanisms on particle morphology and changes in particle concentration are discussed. A new index, the airborne wear particle emission rate (AWPER), is suggested that could be used in legislation to control non-exhaust emissions from transport modes, particularly rail transport.