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Canadian Institute for NDE We are specialized in training for Radiography, Ultrasonics, Magnetic Particle, Liquid Penetrant, Eddy Current and emerging NDT technologies. 421 views Technical Discussions Philippe Rubbers Engineering SCM, South Africa, Joined Nov 1998, 22 Philippe Rubbers Engineering SCM, South Africa, Joined Nov 1998 22 06:45 Jul-23-2004 Materials used in probe shoes Dear colleagues For an inspection with limited access, I am required to either trim my probe's shoe (wedge) or use a shoe with a slower sound velocity, such that my probe is flatter (and therefore has a smaller footprint). My question is this: 1) Can I use Teflon for my shoe, which has a sound velocity of 1.35km/s (cl) and 0km/s(ct). (so in theory should be OK) 2) Are there other materials that would be better suited for this heavy beam bending?... (even slower than Telfon) 3) Since it has a 0km/s transverse velocity, would it not be better than materials that do have a bulk modulus? 4) Are there any suggestions on how I can bend my beam such that I can get into the limited space, and what are your experiences concerning these applications. (I cannot get smaller probes, so changing the shoe is my only alternative, the probe is a Phased array probe). Best regards    Reply  Translate  Close

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