25125
% ) are deposited in industrial scale by physical vapor deposition methods : The fundamental reasons why TiAlN coatings outperform pure TiN coatings are considered to be : The age hardening phenomena has been shown to originate in a mismatch in the quantum mechanical electronic structure of TiN and AlN .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None