220px-NiTi_structure_transformation

2D view of nitinol’s crystalline structure during cooling/heating cycle

Invented in the early 1959, Nitinol alloys exhibit two closely related and unique properties: shape memory and super-elasticity. Shape memory is the ability of Nitinol to undergo deformation at one temperature, then recover its original, undeformed shape upon heating above its “transformation temperature”. Superelasticity occurs at a narrow temperature range just above its transformation temperature; in this case, no heating is necessary to cause the undeformed shape to recover, and the material exhibits enormous elasticity, some 10-30 times that of ordinary metal.

2 Responses to “Free Energy Nitinol Heat Machines”


  1. Fatal error: Uncaught Error: Call to undefined function ereg() in /home/freern5/public_html/wp-content/themes/newstube/includes/theme-comments.php:56 Stack trace: #0 /home/freern5/public_html/wp-content/themes/newstube/includes/theme-comments.php(23): the_commenter_link() #1 /home/freern5/public_html/wp-includes/class-walker-comment.php(180): custom_comment(Object(WP_Comment), Array, 1) #2 /home/freern5/public_html/wp-includes/class-wp-walker.php(146): Walker_Comment->start_el('', Object(WP_Comment), 1, Array) #3 /home/freern5/public_html/wp-includes/class-walker-comment.php(140): Walker->display_element(Object(WP_Comment), Array, '5', 0, Array, '') #4 /home/freern5/public_html/wp-includes/class-wp-walker.php(371): Walker_Comment->display_element(Object(WP_Comment), Array, '5', 0, Array, '') #5 /home/freern5/public_html/wp-includes/comment-template.php(2096): Walker->paged_walk(Array, '5', 0, 0, Array) #6 /home/freern5/public_html/wp-content/themes/newstube/comments.php(24): wp_list_comments('avatar_size=56&...') #7 /home in /home/freern5/public_html/wp-content/themes/newstube/includes/theme-comments.php on line 56