ʻO ka uea Pt-iridium kahi hui binary i hoʻokumu ʻia i ka platinum me ka selenium. He hopena paʻa mau ia i ka mahana kiʻekiʻe. Ke hoʻomaʻalili mālie ʻia i 975 ~ 700 ºC, hana ʻia ka decomposition pae paʻa, akā holo mālie loa ke kaʻina hana kaulike pae. Hiki iā ia ke hoʻomaikaʻi nui i ke kūpaʻa corrosion o ka platinum ma muli o kona volatilization maʻalahi a me ka oxidation. Aia ʻo Ptlr10, Ptlr20, Ptlr25, Ptlr30 a me nā hui ʻē aʻe, me ka paʻakikī kiʻekiʻe a me ke kiko heheʻe kiʻekiʻe, ke kūpaʻa corrosion kiʻekiʻe a me ke kūpaʻa pili haʻahaʻa, ʻo ka helu corrosion kemika he 58% o ka platinum maʻemaʻe, a ʻo ka pohō kaumaha oxidation he 2.8mg/g. He mea pili uila maʻamau ia. Hoʻohana ʻia no nā pilina hoʻā ahi kiʻekiʻe o nā aero-engine, nā pilina uila o nā relays me ke kiʻekiʻe kiʻekiʻe a me nā motika Wei; potentiometers a me nā pulumu apo conductive o nā sensor precision e like me nā mokulele, nā missiles a me nā gyroscopes.

Hoʻohana nui ʻia i nā mea kanu kemika, nā filaments, nā plugs huna ahi