ʻO ka uea Pt-iridium kahi mea hoʻohui pālua i hoʻokumu ʻia i ka platinum me ka selenium. He hopena paʻa mau ia i ka wela kiʻekiʻe. Ke hoʻomaha mālie a hiki i 975~700 ºC, hiki mai ka decomposition paʻa paʻa, akā hele mālie ke kaʻina equilibrium. Hiki iā ia ke hoʻomaikaʻi maikaʻi i ke kūpaʻa corrosion o ka platinum ma muli o kāna volatilization maʻalahi a me ka oxidation. Aia nā Ptlr10, Ptlr20, Ptlr25, Ptlr30 a me nā mea hoʻohui ʻē aʻe, me ka paʻakikī kiʻekiʻe a me ka helu heheʻe kiʻekiʻe, ke kūpaʻa corrosion kiʻekiʻe a me ke kūpaʻa haʻahaʻa haʻahaʻa, ʻo 58% o ka platinum maʻemaʻe ka nui o ka corrosion, a ʻo ke kaumaha o ka oxidation he 2.8mg / g. . He mea pili uila maʻamau. Hoʻohana ʻia no ka hoʻopili ʻana i ke ahi kiʻekiʻe o nā aero-engines, nā pilina uila o nā relays me ka naʻau kiʻekiʻe a me nā kaʻa Wei; nā potentiometers a me nā pulupulu apo conductive o nā mea ʻike pololei e like me ka mokulele, missiles a me nā gyroscopes
Mea hana:
Hoʻohana nui ʻia i nā mea kanu kemika, nā filament, nā pahu kukui
Mea waiwai | Lae hehee (ºC) | ʻAiʻa (G/cm3) | ʻO Vickers hardnes palupalu | ʻO Vickers hardnes Paʻakikī | ʻO ka ikaika tensile (MPa) | Kū'ē (uΩ.cm)20ºC |
Platinum (99.99%) | 1772 | 21.45 | 40 | 100 | 147 | 10.8 |
Pt-Rh5% | 1830 | 20.7 | 70 | 160 | 225 | 17.5 |
Pt-Rh10% | 1860 | 19.8 | 90 | 190 | 274 | 19.2 |
Pt-Rh20% | 1905 | 18.8 | 100 | 220 | 480 | 20.8 |
Platinum-Ir (99.99%) | 2410 | 22.42 | ||||
Platinum-Pt (99.99%) | 1772 | 21.45 | ||||
Pt-Ir5% | 1790 | 21.49 | 90 | 140 | 174 | 19 |
Pt-lr10% | 1800 | 21.53 | 130 | 230 | 382 | 24.5 |
Pt-Ir20% | 1840 | 21.81 | 200 | 300 | 539 | 32 |
Pt-lr25% | 1840 | 21.7 | 200 | 300 | 238 | 33 |
Pt-Ir30% | 1860 | 22.15 | 210 | 300 | 242 | 32.5 |
Pt-Ni10% | 1580 | 18.8 | 150 | 320 | 441 | 32 |
Pt-Ni20% | 1450 | 16.73 | 220 | 400 | 588 | 34.1 |
Pt-w% | 1850 | 21.3 | 200 | 360 | 588 | 62 |
Nā kikoʻī: 0.015~1.2(mm) i ka uwea poepoe, kāʻei: 60.1~0.5(mm) | ||||||
Nā mea hoʻohana: Nā mea ʻike kinoea. Nā mea ʻike like ʻole, nā mea lapaʻau. ʻO nā ʻimi uila a me ka wela, etc. |