article_snippet.sent: It looks at the composition of Iron Man's suit - said to be a gold-titanium alloy in one of the movies - and Captain America's shield.
article_snippet.sent: However, Dr Raychelle Burks continued that it is later made of a nickel-titanium alloy called nitinol.
article_snippet.sent: There may also be some graphite reinforced with carbon fibre, which can take a lot of heat - useful if Iron Man doesn’t want to singe Iron Man feet using those rocket boots.
article_snippet.sent: In Iron Man 2 this uses palladium - but we soon learn this is poisoning and killing the character.
article_snippet.sent: As evidenced by a flash of light as Thor’s hammer hits the shield, it appears this material
highlights_snippet.sent: Washington's American Chemical Society video looks at the composition of Iron Man's suit and Captain America's shield .
  