Hluav taws xob cua sov phaj yog cov khoom siv cua sov uas siv hluav taws xob los ua kom muaj cua sov. Nws cov qauv tseem ceeb feem ntau muaj cov hlau electrothermal alloy raws li cov khoom cua sov, mica lossis cov ntaub ntawv zoo sib xws li rwb thaiv tsev, thiab cov phaj hlau sab nrauv (xws li txhuas lossis stainless hlau). Nws ua haujlwm raws li cov nyhuv electrothermal; hluav taws xob tam sim no dhau los ntawm cov khoom cua sov, hloov hluav taws xob rau hauv lub zog hluav taws xob. Cov cuab yeej siv no tau siv dav hauv ntau qhov chaw, suav nrog kev ua noj hauv tsev, kev tshawb fawb hauv chav kuaj, muaj cua sov, tsev cog khoom ua liaj ua teb, thiab kev kho mob.
Hluav taws xob cua sov phaj tuaj nyob rau hauv ntau hom, feem ntau suav nrog ceramic cua sov daim hlau, stainless hlau cua sov daim hlau, carbon siv lead ua cua sov daim hlau, thiab carbon fiber cua sov daim hlau. Qhov sib txawv tseem ceeb nyob hauv cov khoom siv plhaub sab nraud lossis cov khoom siv cua sov sab hauv. Lawv feem ntau muaj cov qauv yooj yim, tsis sib xws thaum tshav kub kub dissipation, kev nyab xeeb zoo, thiab kev siv hluav taws xob.