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1. Solid State 2. Solutions 3. Electro-Chemistry 4. Chemical Kinetics 5. Surface Chemistry 6. General Principles And Processes Of Isolation Of Elements 7. P-Block Elements 8. D-And F-Block Elements 9. Coordination Compounds And Organometallics 10. Haloalkanes And Haloarenes 11. Alcohols, Phenols And Ethers 12. Aldehydes Ketones And Carboxylic Acids 13. Organic Compounds Containing Nitrogen 14. Biomolecules 15. Polymers 16. Chemistry In Everyday Life Appendix : 1. Important Name Reactions And Process 2. Some Important Organic Conversion 3. Some Important Distinctions Long - Antilog Table Board Examination Papers.
Identifiers: Pack cementation, Hot dipping. A summary is presented of the current state of the art of coatings to protect refractory metals from oxidation. Coatings for Mo are the most advanced, followed by those for Nb alloys. Significant progress was made on coatings for Ta alloys. W has received some attention, but the temperature range precludes any easy solutions. No coatings are available for V alloys. Silicide-base coatings are of most importance for Mo and W. Both the aluminide and silicide-base coatings were of genuine value for the protection of Nb and Ta alloys.