Improvements in P/M Green Strength using Micronized Cellulose Particles (MCP)

Abstract:

New P/M lubricant formulations implement micron-sized (“micronized”) cellulose particles (MCP) to create MCP-enhanced lubricants. Surprising increases in green strength, up to 70% for iron and even higher for stainless steel are obtained with standard transverse rupture bars shapes made with 0.75 wt-% additive concentrations in iron (MPIF F-0000) and 316L stainless steel powders in comparison with the same parts made under the same conditions with industry standard lubricantbinders of zinc stearate, ethylene-bis-stearamide (EBS), and oxidized polyolefin (OP) wax. Two specific forms of new MCP materials are used in these tests: micronized cotton fibers (MCF), and micronized starch particles (MSP). The findings support expectations of significantly increased process yields for green parts and related production cost savings.

• Periodical: Materials Science Forum (Volumes 530-531)
• Pages: 92-98
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.530-531.92
• Online since: November 2006
• Authors: A. James Henderson, Ronnie Singh
• Keywords: Ethylene-Bis-Stearamide (EBS), Green Strength, Lubricant and Binder, Micronized Cellulose Particle (MCP), Micronized Cotton Fiber (MCF), Micronized Starch Particle (MSP), Powder Metal, Zinc Stearate

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