Platinum-rhodium xaim hlau yog lub platinum-based recoy-uas muaj binary alloy, uas yog kev daws teeb meem tsis tu ncua ntawm qhov kub. Rhodium nce qhov thermoelectric muaj peev xwm, oxidation tsis kam thiab acid corrosion tsis kam ntawm alloy rau platinum. Muaj alloys xws li ptrh5, ptrhl0, ptrhly ptrhl3, ptrh30 thiab ptrh40. Alloys nrog ntau tshaj 20% RH yog insoluble hauv aqua regia. Feem ntau yog siv ua cov ntaub ntawv thermocouple, suav nrog ptrhloc / pt, thiab lwm yam ntawm cov txheej txheem ntawm 0-1800 ℃ hauv ntau cov txheej txheem ntsuas kub ntawm nruab nrab ntawm nruab nrab thiab khoom nto.
Cov txiaj ntsig zoo: Platinum Rhroium Hlau muaj qhov zoo tshaj plaws ntawm qhov tseeb, lub neej ntev tshaj plaws thiab ntsuas kub siab tshaj plaws sab saud nyob rau hauv lub thermocouple koob. Nws yog qhov haum rau oxidizing thiab inert atmospheres, thiab kuj tseem siv tau rau lub tshuab nqus tsev rau lub sijhawm luv luv, tab sis nws tsis haum rau kev txo cov cua nab kuab, tab sis nws tsis yog rau kev txo cov cua nab kuab lossis cov cua sov uas muaj cov hlau tsis sib xws. Cov.
Kev lag luam thermoco xws li platinum-rhodium xaim hlau xaim, platinum-rhodium-rhodium-rhodium-rhodium-rhodium-rhodium-rhodium). Rhodium Rhodium 6), lawv tau siv cov ntsuas kub ntsuas kub, feem ntau yog siv cov cuab yeej hloov kho qhov kub thiab kev tswj hwm thiab cov chaw ua kua thiab cov khoom sib luag hauv cov 1800 ° C.
Kev lag luam siv yog: steel, lub hwj chim tiam, tshuaj lom neeg, cov khoom siv cua sov, luam tawm thiab dowing thiab lwm yam kev lag luam thaj chaw.