Multiprobe impedance measurement system for nondestructive evaluation and test of "green state" powder metallurgy parts

IEEE Transactions on Instrumentation and Measurement

Volumn 47, Issue 5, 1998, Pages 1367-1371

  Stander, Jennifer ^a   McNeill, John A ^b   Ludwig, Reinhold ^b  

^a Quantum Corporation   (United States)

^b Worcester Polytechnic Institute   (United States)

Author keywords

Automatic testing; Conductivity measurement; Flaw detection; Metals industry; Nondestructive testing; Powdered materials

Indexed keywords

AUTOMATIC TESTING; ELECTRIC CONDUCTIVITY OF SOLIDS; NONDESTRUCTIVE EXAMINATION; POWDER METALLURGY;

MULTIPROBE IMPEDANCE MEASUREMENT SYSTEMS;

ELECTRIC IMPEDANCE MEASUREMENT;

EID: 0032179851     PISSN: 00189456     EISSN: None     Source Type: Journal    
DOI: 10.1109/19.746612     Document Type: Article

References (6)

1. J. Stander, J. Plunkett, W. Michalson, J. McNeill, and R. Ludwig, "A novel multi-probe resistivity approach to inspect green-state metal powder compacts," J. Nondestruct. Eval., vol. 16, no. 4, pp. 205-214, 1997.
2. J. Stander, "A nondestructive evaluation method for 'green' powder metal parts using electrical impedance," M.S. thesis, Worcester Polytech. Inst., Worcester, MA, 1996.
3. R. E. Shannon, P. K. Liaw, and W. C. Harrigan, Jr., "Nondestructive evaluation for large-scale metal-matrix composite billet processing," Metallurg. Trans. A. vol. 23A, pp. 1541-1549, May 1992.
4. D. P. Johnson, "Nondestructive flaw detection and density measurements in powder metallurgy parts - Part II," Ind. Heating, pp. 41-45, Aug. 1996.
5. B. van den Bos, "The DC potential drop method for nondestructive testing of P/M components in green and sintered state," Div. Eng. Materials, Linkoping Univ., Stockholm, Sweden, June, 1992.
6. R. L. Cohen and K. W. West, "Characterization of metals and alloys by electrical resistivity measurements," Mater. Eval., vol. 41, pp. 1074-1077, Aug. 1983.