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Key terms: iron pillar delhi high metal gupta indian rust corrosion ancient iit initial studies feet located interface oxides layer agent skill balasubramaniam delhi iron pillar journal inscription vishnu inches centre phosphorus amorphous formation new delhi passive metallurgy proposed achieved analysis wrought iron p content phosphate resistance protective crystalline qutb complex vikramaditya publications ancient indian chandragupta ii second phase particles atmospheric conditions Search external links cited by footnotes on Wikipedia page Iron pillar of Delhi: |
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