ʻO 4J36, ka mea i kapa ʻia ʻo Invar 36 alloy, he mea kūikawā, haʻahaʻa haʻahaʻa iron-nickel alloy me kahi ultra-low coefficient of expansion (CTE); he haʻahaʻa laina laina o ka hoʻonui wela ma ka laulā o 20-100 ° C. 4J42 alloy he koena mau o ka ho'onui wela (CTE) e like me ke aniani paakiki, ke aniani palupalu, a me ka seramika.

ʻO Alloy 4J42 he hao-nickel me ka hoʻonui mau ʻana, ʻo kona coefficient of thermal expansion (CTE) e like me ke aniani paʻa, aniani palupalu, keramika, a hiki ke hoʻopaʻa ʻia me ka hermetically sila ma o ke kaʻina hana hoʻopaʻa ʻana i ke aniani-i-metal e hoʻokō ai i nā hale hōʻailona hermetically sila; ʻO ka pani ʻana o CTE o nā alumina maʻamau, LTCC i hoʻopaʻa ʻia, a me nā substrate papa kaapuni AlN; ka nui o ka ikehu magnetic a me nā waiwai uila maikaʻi loa; a me ka maikaʻi machining, plating, a me nā waiwai kūʻai.