NDLI: Effect of abrasive grit size on wear of manganese-zinc ferrite under three-body abrasion

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Effect of abrasive grit size on wear of manganese-zinc ferrite under three-body abrasion

Content Provider	NASA Technical Reports Server (NTRS)
Author	Miyoshi, Kazuhisa
Copyright Year	1987
Description	Wear experiments were conducted using replication electron microscopy and reflection electron diffraction to study abrasion and deformed layers produced in single-crystal Mn-Zn ferrites under three-body abrasion. The abrasion mechanism of Mn-Zn ferrite changes drastically with the size of abrasive grits. With 15-micron (1000-mesh) SiC grits, abrasion of Mn-Zn ferrite is due principally to brittle fracture; while with 4- and 2-micron (4000- and 6000-mesh) SiC grits, abrasion is due to plastic deformation and fracture. Both microcracking and plastic flow produce polycrystalline states on the wear surfaces of single-crystal Mn-Zn ferrites. Coefficient of wear, total thickness of the deformed layers, and surface roughness of the wear surfaces increase markedly with an increase in abrasive grit size. The total thicknesses of the deformed layers are 3 microns for the ferrite abraded by 15-micron SiC, 0.9 microns for the ferrite abraded by 4-micron SiC, and 0.8 microns for the ferrite abraded by 1-micron SiC.
File Size	10590989
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870015133
Archival Resource Key	ark:/13960/t4cp20q68
Language	English
Publisher Date	1987-01-01
Access Restriction	Open
Subject Keyword	Nonmetallic Materials Microcracks Abrasion Fracture Mechanics Electron Diffraction Silicon Carbides Surface Roughness Plastic Deformation Electron Microscopy Zinc Ferrites Single Crystals Wear Grit Manganese Tribology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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