日期:2012-04-17 09:58
ompactness，good toughness．and stable iron content between 62％and66％，meeting the composition requirement of invar alloy．Keywords：iron-nickel alloy；invar alloy；foil；fluoroborate；electrodeposition；rotating cathode；current emciencyFirst-author’S address：College of ChemistryChemical Engineerin9，Hunan University，Changsha 4 1 0082，China1前言因瓦合金是指铁质量分数为64％的铁镍合金，其最主要的特点是在较宽的温度范围内具有非常低的热膨胀系数，能够保持元器件形状、尺寸的稳定，因而被广泛应用于