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How do you get scratches out of a ceramic tub? 

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The stress state around polishing scratches gives rise to preferential transformation in the zone of the induced scratches and consequently to accelerated ageing.
Out of the elements examined, titanium is the most adhesion-active for this ceramic.
It provides a method to detect localized corrosion arising from scratches.
It is shown that scratches initiate failure of the protective oxide.
Journal ArticleDOI
C.P. Doǧan, J.A. Hawk 
01 Oct 2001-Wear
51 Citations
Nonetheless, characteristics of the ceramic microstructure do influence its hardness and fracture toughness and must, therefore, play an active role in determining how a ceramic will respond to the specific stress states imposed upon it by the wear environment.
The results point out the potential of the infiltration approach as a means for tailoring the composition and microstructure of ceramic bodies.
Large particles would play a significant role in increasing the number of scratches.

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