Experimental evaluation of clad metallic buffer rods for high temperature ultrasonic measurements

Experimental evaluation of clad metallic buffer rods for high temperature ultrasonic measurements
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DOI:
10.1016/s0963-8695(99)00042-0
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发表时间:
2000-04-01
影响因子:
4.2
通讯作者:
Parent, L
Parent, L
中科院分区:
材料科学1区
文献类型:
--
作者:
Jen, CK;Legoux, JG;Parent, L

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介绍了由芯和包层组成的金属缓冲棒的制造、评估和几种应用。包层棒可以具有锥形形状并且包层通过热喷涂技术制造。已制造出与 Im 一样长的包层棒。实验结果表明,使用这些缓冲棒在 5 MHz 下检测到的超声波信号对于反射模式下的纵波和横波都具有非常高的信噪比 (>35 dB)。报告了在测量高达 960 摄氏度的热板和熔融金属厚度以及聚合物挤出在线监测方面的应用。皇冠版权所有 (C) 2000 由 Elsevier Science Ltd 出版。保留所有权利。
The fabrication, evaluation and several applications of metallic buffer rods consisting of a core and a cladding are presented. The clad rods can have a taper shape and the cladding is fabricated by thermal spray techniques. Clad rods as long as Im have been fabricated. Experimental results show that the ultrasonic signals detected at 5 MHz with these buffer rods have very high signal to noise ratio (>35 dB) for both longitudinal and sheer waves in a reflection mode. Applications to the measurement of the thickness of hot plates and molten metals up to 960 degrees C and to the on-line monitoring of polymer extrusion are reported. Crown copyright (C) 2000 Published by Elsevier Science Ltd. All rights reserved.