Ultrasonic wave propagation in powders

Ultrasonic wave propagation in powders
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超声波在粉末中的传播

DOI:
10.1088/1742-6596/1017/1/012001
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发表时间:
2018
期刊:
Conference Series
影响因子:
--
通讯作者:
Al-Lashi R
Al-Lashi R
中科院分区:
--
文献类型:
--
作者:
Al-Lashi R

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相似文献

粉团(饼)对粉料的流动性和稳定性有重要影响。粉料结块主要是由湿润引起的水分迁移和环境(温湿度)变化引起的。水分迁移结块的过程包括在冷凝过程中在颗粒之间创建液桥,这些液桥随后变硬,形成固体桥。因此,需要一种有效和可靠的技术来定量和非侵入性地监测粘结动力学和有效刚度。本文介绍了用来监测结块现象的两种超声仪(声速脉冲和机载超声系统)。此外,还讨论了超声速度与衰减测量之间的关系,以及跟踪结块动力学和粉末有效硬度之间的关系。
Powder clumps (cakes) has a significant effect on the flowability and stability of powders. Powder caking is mainly caused by moisture migration due to wetting and environmental (temperature and humidity) changes. The process of moisture migration caking involves creating liquid bridges between the particles during condensation which subsequently harden to form solid bridges. Therefore, an effective and reliable technique is required to quantitatively and non-invasively monitor caking kinetics and effective stiffness. This paper describes two ultrasonic instruments (ultrasonic velocity pulse and airborne ultrasound systems) that have been used to monitor the caking phenomenon. Also, it discusses the relationship between the ultrasonic velocity and attenuation measurements and tracking caking kinetics and the effective stiffness of powders.
粉末溶解的超声波监测
DOI: --
发表时间: 2002
期刊:
影响因子: --
作者:
Raffaella Saggin;J. Coupland
通讯作者: J. Coupland
DOI: 10.1016/b978-0-12-563730-5.x5000-4
发表时间: 1997-07
期刊: --
影响因子: --
作者:
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通讯作者: M. Povey
粉末中的超声波速度测量及其与附聚形成的颗粒强度的关系
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
P. Coghill;P. Giang
通讯作者: P. Giang
DOI: --
发表时间: 2008
影响因子: 2.6
作者:
I. Akseli;C. Cetinkaya
通讯作者: C. Cetinkaya
DOI: --
发表时间: 2011
期刊:
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作者:
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