Evaluation of particle mixture-state using sonic properties

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760621
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Okayama University
• Principal Investigator: YOSHIDA Mikio 岡山大学, 自然科学研究科, 助教 (60444650)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 混合状態評価 / 超音波透過特性 / 3次元混合情報 / 複合材料

Outline of Final Research Achievements

In order to clearly understand effects of particle mixture-state on transmitting properties of ultrasonic wave for composite materials, we used “model samples” which simplify various parts of the composite materials and could vary freely some parameters, such as volume ratio, the number of interface, array order. As a result, the transmitting wave of the sample attenuated by both transmission and diffraction at the interfaces. Furthermore, the result implied that diffraction attenuation would be dominant than that of transmission when we measured it for an actual composite materials. Hence, it might be possible to evaluate 3 dimensional mixture-state of the composite material using the diffraction attenuation.

Free Research Field

粉体工学，化学工学