Tungsten Lanthanum Rod Materials: WL10 ( Tungsten Lanthanum Alloy) Size: Dia65 X 65mm ... of thermal conductivity and low thermal expansion, tungsten and it’s alloy is a excellent choice for produce the electrode, ... W/La alloy, W/Ag alloy, W/Th alloy. SMT’s advantage in electrode / contact components1.Various Materials choice, difficulty design ... %La2O3, 1.5%La2O3, , 2%La2O3, tungsten lanthanum alloy rod