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Alumina Particle Degradation during Solid Particle Impact on Glass
Author(s) -
Slikkerveer Peter J.,
Veld Henri in't,
Verspui Mariëtte,
With Bert,
Reefman Derk
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01545.x
Subject(s) - materials science , degradation (telecommunications) , particle (ecology) , particle size , composite material , fracture (geology) , diffraction , mineralogy , metallurgy , chemical engineering , chemistry , optics , computer science , geology , telecommunications , oceanography , physics , engineering
Particle degradation limits the reuse of powders in industrial powder‐blast processes. In this paper the degradation behavior of Al 2 O 3 powder is studied during erosion of glass substrates. Three techniques were used on original and multiply used powders: particle size measurements, single particle crushing tests, and microstrain analysis by X‐ray diffraction. Combination of the three techniques shows that the degradation is dominated by flaws present in the original particles. Fracture at repeated use decreases the particle size, but by removing flaws also increases the degradation resistance of the particles.