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CHEM02200704003 Nilamadhab Pandhy - Homi Bhabha National ...

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Chapter 5<br />

boundary dissolution was observed for unimplanted and lower dose specimens, which happened<br />

due to preferential attack along the grain boundaries in nitric acid medium. The unimplanted, and<br />

implanted with highest dose of nitrogen showed completely different features. At higher doses<br />

formation of Cr 2 N and segregation of nitrogen to the metal-oxide interface during polarization<br />

forming nitrides is the factor resisting surface dissolution [21].

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