Metallographic Determination for Porosity of Zirconia Ceramic Knives

Ge Ping Bi; Wen Hua Tan; Ai Jin Ma

doi:10.4028/www.scientific.net/AMM.873.20

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 873Metallographic Determination for Porosity of...

Metallographic Determination for Porosity of Zirconia Ceramic Knives

Abstract:

Porosity has many effects on performance of ceramic knife including sharpness, durability, etc, the metallographic detection for porosity of food contact ceramic knife was established in this study. Bycompared the relation ofsharpness, durabilityand porosity, Calculated quantitative metallographicofporosity, andestablishedthestandardatlasofmetallographicsample, the porosity was detected. The results showed that not only the <0.5% porosity could be detected, and the opening, the closing porositywould be detected quickly and accuratelyat the same time. It could be used in optimizing process and monitoring quality and safety of food contact ceramic knife.

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Periodical:

Applied Mechanics and Materials (Volume 873)

Pages:

20-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.873.20

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Online since:

November 2017

Authors:

Ge Ping Bi, Wen Hua Tan, Ai Jin Ma

Keywords:

Ceramic, Metallographic Determination, Porosity

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References

[1] Materials and articles in contact with foodstuffs-Cutlery and holloware-Part 5: specification for sharpness and edge retention test of cutlery ISO 8442-5: 2004, Switzerland: International Organization for Standardization.

DOI: 10.3403/03201364u

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[2] Fine ceramics (advanced ceramics, advanced technical ceramics) -Determination of density and apparent porosity ISO 18754: 2003, Switzerland: International Organization for Standardization.

DOI: 10.3403/30380305u

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